List of asteroid close approaches to Earth in 2021 explained

Time of discovery of asteroids which passed within 1 lunar distance from Earth in 2021
Other Years
Caption:Years
Below:2019, 2020, 2021, 2022, 2023

Below is the list of asteroids that have come close to Earth in 2021.

Timeline of known close approaches less than one lunar distance from Earth

A list of known near-Earth asteroid close approaches less than 1 lunar distance (0.0025696AU) from Earth in 2021.

For reference, the radius of Earth is about 4.26E-05AU or 0.0166 lunar distances. Geosynchronous satellites have an orbit with semi-major axis length of 0.000282AU or 0.110 lunar distances.

The largest asteroid to pass within 1 LD of Earth in 2021 was with an estimated diameter of around 68 meters and an absolute magnitude of 24.0. The fastest asteroid to pass within 1 LD of Earth in 2021 was that passed Earth with a velocity with respect to Earth of 27.7km/s.[1]

Date of
closest
approach		Discovery[2] ObjectNominal geocentric distance[3] Approx.
size (m)		(H)
(abs. mag)		Closer
approach
to Moon
[4]
data-sort-type="number"(AU)data-sort-type="number"(Lunar
distance)
[5]
2021-01-01[6] 2021-01-02
G96 Mt. Lemmon Survey[7] 		0.00159AU align=center 0.62 align=center 11–24 align=center 27.0 align=center —
2021-01-03[8] 2021-01-03
703 Catalina Sky Survey[9] 		0.00033AU align=center 0.13 align=center 5.3–12 align=center 28.5 align=center —
2021-01-04[10] 2021-01-05
G96 Mt. Lemmon Survey[11] 		0.00035AU align=center 0.14 align=center 3.2–7.2 align=center 29.6 align=center —
2021-01-09[12] 2021-01-08
G96 Mt. Lemmon Survey[13] 		0.00072AU align=center 0.28 align=center 3.2–7.2 align=center 29.6 align=center —
2021-01-16[14] 2021-01-18
G96 Mt. Lemmon Survey[15] 		0.00049AU align=center 0.19 align=center 1.8–4.1 align=center 30.8 align=center —
2021-01-18[16] 2021-01-17
G96 Mt. Lemmon Survey[17] 		0.00075AU align=center 0.29 align=center 2.3–5.2 align=center 30.3 align=center —
2021-01-18[18] 2021-01-17
703 Catalina Sky Survey[19] 		0.00161AU align=center 0.62 align=center 6.6–15 align=center 28.0 align=center —
2021-01-18[20] 2021-01-17
G96 Mt. Lemmon Survey[21] 		0.00016AU align=center 0.06 align=center 0.68–1.5 align=center 33.0 align=center —
2021-01-20[22] 2021-01-18
G96 Mt. Lemmon Survey[23] 		0.00168AU align=center 0.65 align=center 3.8–8.6 align=center 29.2 align=center —
2021-01-26[24] 2018-01-18[25] 0.0025AU align=center 0.97 align=center 14–31 align=center 26.4 align=center —
2021-02-04[26] 2021-02-05
703 Catalina Sky Survey[27] 		0.00135AU align=center 0.52 align=center 4.4–9.9 align=center 28.9 align=center —
2021-02-09[28] 2021-02-09
I41 Palomar Mountain—ZTF[29] 		0.00015AU align=center 0.06 align=center 1.7–3.8 align=center 31.0 align=center —
2021-02-11[30] 2021-02-05
703 Catalina Sky Survey[31] 		0.00242AU align=center 0.94 align=center 23–52 align=center 25.3 align=center —
2021-02-11[32] 2021-02-11
703 Catalina Sky Survey[33] 		0.00119AU align=center 0.46 align=center 5.1–11 align=center 28.6 align=center —
2021-02-12[34] 2021-02-11
V00 Kitt Peak-Bok[35] 		0.00113AU align=center 0.44 align=center 2.5–5.5 align=center 30.1 align=center —
2021-02-12[36] 2021-02-12
381 Tokyo-Kiso[37] 		0.00217AU align=center 0.84 align=center 3.0–6.7 align=center 29.7 align=center —
2021-02-13[38] 2021-02-10
F51 Pan-STARRS 1, Haleakala[39] 		0.00111AU align=center 0.43 align=center 5.2–12 align=center 28.6 align=center —
2021-02-14[40] 2021-02-12
T08 ATLAS-MLO, Mauna Loa[41] 		0.001AU align=center 0.39 align=center 7.3–16 align=center 27.8 align=center —
2021-02-14[42] 2021-02-13
K88 GINOP-KHK, Piszkesteto[43] 		0.00019AU align=center 0.07 align=center 1.5–3.4 align=center 31.2 align=center —
2021-02-18[44] 2021-02-18
I41 Palomar Mountain—ZTF[45] 		0.00226AU align=center 0.88 align=center 6.3–14 align=center 28.1 align=center —
2021-02-18[46] 2021-02-17
G96 Mt. Lemmon Survey[47] 		0.00111AU align=center 0.43 align=center 2.2–4.9 align=center 30.4 align=center —
2021-02-21[48] 2021-02-22
K88 GINOP-KHK, Piszkesteto[49] 		0.00132AU align=center 0.51 align=center 3.9–8.7 align=center 29.2 align=center —
2021-03-01 2021-03-02 ZTF0KfF 0.00187AU 0.73[50] align=center 0.96–5.9 align=center 31.0 align=center ?[51]
2021-03-02[52] 2021-03-01
K88 GINOP-KHK, Piszkesteto[53] 		0.00063AU align=center 0.24 align=center 6.3–14 align=center 28.1 align=center —
2021-03-07 2021-03-06 C4YK182 0.000632AU 0.25[54] align=center 1.8–5.9 align=center 30.3 align=center —[55]
2021-03-08[56] 2021-03-06
G96 Mt. Lemmon Survey[57] 		0.00187AU align=center 0.73 align=center 3.1–6.8 align=center 29.7 align=center
2021-03-09[58] 2021-03-10
G96 Mt. Lemmon Survey[59] 		0.00098AU align=center 0.38 align=center 3.8–8.6 align=center 29.2 align=center —
2021-03-10 2021-03-11 ScKo07a 0.0013AU align=center 0.51[60] align=center 0.97–5.9 align=center 31.0 align=center —[61]
2021-03-15[62] 2021-03-15
T08 ATLAS-MLO, Mauna Loa[63] 		0.00047AU align=center 0.18 align=center 3.1–6.9 align=center 29.7 align=center —
2021-03-15[64] 2021-03-15
381 Tokyo-Kiso[65] 		0.00248AU align=center 0.97 align=center 3.7–8.4 align=center 29.3 align=center —
2021-03-16[66] 2021-03-11
G96 Mt. Lemmon Survey[67] 		0.00186AU align=center 0.72 align=center 16–36 align=center 26.1 align=center
2021-03-20[68] 2021-03-22
G96 Mt. Lemmon Survey[69] 		0.00056AU align=center 0.22 align=center 2.5–5.7 align=center 30.1 align=center —
2021-03-21[70] 2021-03-22
G96 Mt. Lemmon Survey[71] 		0.00213AU align=center 0.83 align=center 6.3–14 align=center 28.1 align=center —
2021-03-23 2021-03-23 B03SK22 0.00019AU 0.074[72] align=center 0.38–2.4 align=center 33.0 align=center —[73]
2021-03-23[74] 2021-03-20
G96 Mt. Lemmon Survey[75] 		0.00215AU align=center 0.84 align=center 3.4–7.6 align=center 29.5 align=center —
2021-03-23[76] 2021-03-18
G96 Mt. Lemmon Survey[77] 		0.00157AU align=center 0.61 align=center 12–27 align=center 26.7 align=center —
2021-03-23[78] 2021-03-22
G96 Mt. Lemmon Survey[79] 		0.00216AU align=center 0.84 align=center 2.5–5.6 align=center 30.1 align=center —
2021-04-01 2021-04-01 A10w8qG 0.00149AU 0.58[80] align=center 3.2–12 align=center 28.9 align=center [81]
2021-04-03[82] 2021-04-04
G96 Mt. Lemmon Survey[83] 		0.00161AU align=center 0.62 align=center 3.9–8.8 align=center 29.1 align=center —
2021-04-03 2021-04-06 P11ekJ0 0.00188AU 0.73[84] align=center 2.9–18 align=center 28.6 align=center —[85]
2021-04-04[86] 2021-04-03
G96 Mt. Lemmon Survey[87] 		0.00224AU align=center 0.87 align=center 3.8–8.6 align=center 29.2 align=center —
2021-04-05[88] 2021-04-03
G96 Mt. Lemmon Survey[89] 		0.00167AU align=center 0.65 align=center 4.8–11 align=center 28.7 align=center —
2021-04-05[90] 2021-04-05
I41 Palomar Mountain—ZTF[91] 		0.00126AU align=center 0.49 align=center 4.3–9.6 align=center 28.9 align=center
2021-04-06 2021-04-07 P11eyxx 0.00024AU 0.093[92] align=center 1.4–5.4 align=center 30.7 align=center —[93]
2021-04-08 2021-04-07 A10wiOp 0.00224AU 0.87[94] align=center 2.8–17 align=center 28.7 align=center —[95]
2021-04-08[96] 2021-04-08
381 Tokyo-Kiso[97] 		0.00212AU align=center 0.82 align=center 4.3–9.6 align=center 29.0 align=center —
2021-04-09[98] 2021-04-11
T08 ATLAS-MLO, Mauna Loa[99] 		0.00247AU align=center 0.96 align=center 15–33 align=center 26.3 align=center
2021-04-10[100] 2021-04-06
F51 Pan-STARRS 1, Haleakala[101] 		0.00171AU align=center 0.67 align=center 14–32 align=center 26.4 align=center —
2021-04-10 2021-04-10 TMG0042 0.0022AU 0.85[102] align=center 4.4–14.3 28.4 align=center —[103]
2021-04-11[104] 2021-04-10
703 Catalina Sky Survey[105] 		0.00248AU align=center 0.97 align=center 5.3–12 align=center 28.5 align=center —
2021-04-11 2021-04-11 TMG0044 0.00126AU 0.49[106] align=center 2.5–9.9 align=center 29.4 align=center —[107]
2021-04-11 2021-04-07 P11exfR 0.00244AU 0.95[108] align=center 3.1–19 align=center 28.5 align=center —[109]
2021-04-11 2021-04-11 TMG0045 0.00156AU 0.61[110] align=center 3.7–12 align=center 28.8 align=center —[111]
2021-04-11[112] 2021-04-11
381 Tokyo-Kiso[113] 		0.00156AU align=center 0.61 align=center 4.6–10 align=center 28.8 align=center —
2021-04-12[114] 2021-04-08
G96 Mt. Lemmon Survey[115] 		0.00018AU align=center 0.07 align=center 3.4–7.6 align=center 29.5 align=center —
2021-04-13[116] 2021-04-13
I41 Palomar Mountain—ZTF[117] 		0.00228AU align=center 0.89 align=center 4.0–8.9 align=center 29.1 align=center —
2021-04-13 2021-04-13 ZTF0KwS 0.00105AU 0.41[118] align=center 2.4–15 align=center 29.0 align=center ?[119]
2021-04-13[120] 2021-04-11
V00 Kitt Peak-Bok[121] 		0.00146AU align=center 0.57 align=center 2.0–4.5 align=center 30.6 align=center —
2021-04-14[122] 2021-04-14
381 Tokyo-Kiso[123] 		0.00116AU align=center 0.45 align=center 12–28 align=center 26.6 align=center —
2021-04-14[124] 2021-04-15
T08 ATLAS-MLO, Mauna Loa[125] 		0.0002AU align=center 0.08 align=center 2.5–5.7 align=center 30.1 align=center —
2021-04-15[126] 2021-04-17
T05 ATLAS-HKO, Haleakala[127] 		0.00155AU align=center 0.60 align=center 6.8–15 align=center 28.0 align=center
2021-04-15[128] 2021-04-14
W94 MAP, San Pedro de Atacama[129] 		0.00077AU align=center 0.30 align=center 6.2–14 align=center 28.2 align=center —
2021-04-15[130] 2021-04-14
F51 Pan-STARRS 1, Haleakala[131] 		0.00192AU align=center 0.75 align=center 5.6–12 align=center 28.4 align=center
2021-04-16 2021-04-17 ZTF0KyD 0.00213AU 0.83[132] align=center 3.2–20 align=center 28.4 align=center ?[133]
2021-04-17[134] 2021-04-18
703 Catalina Sky Survey[135] 		0.00153AU align=center 0.59 align=center 4.4–9.7 align=center 28.9 align=center
2021-04-17 2021-04-14 P11f7ua 0.00108AU 0.42[136] align=center 2.9–9.4 align=center 29.3 align=center —[137]
2021-04-17 2021-04-17 B04SK17 0.00106AU 0.41[138] align=center 3.1–30 align=center 28.0 align=center ?[139]
2021-04-19[140] 2021-04-17
G96 Mt. Lemmon Survey[141] 		0.0017AU align=center 0.66 align=center 11–25 align=center 26.9 align=center —
2021-04-23 2021-04-25 A10wMMp 0.000735AU 0.29[142] align=center 2.5–16 align=center 28.9 ?[143]
2021-04-24 2021-04-24 ZTF0Kzz 0.0016AU 0.62[144] align=center 1.2–7.5 align=center 30.5 ?[145]
2021-05-02 2021-05-02 S514008 0.00079AU 0.31[146] align=center 2.4–15 align=center 29.0 align=center ?[147]
2021-05-02[148] 2021-05-03
T05 ATLAS-HKO, Haleakala[149] 		0.00173AU align=center 0.67 align=center 8.0–18 align=center 27.6 align=center —
2021-05-04[150] 2021-05-03
T05 ATLAS-HKO, Haleakala[151] 		0.00094AU align=center 0.36 align=center 8.6–19 align=center 27.4 align=center —
2021-05-06[152] 2021-05-05
G96 Mt. Lemmon Survey[153] 		0.00074AU align=center 0.29 align=center 5.3–12 align=center 28.5 align=center —
2021-05-07 2021-05-09 P11gae7 0.00126AU 0.49[154] align=center 3.1–19 align=center 28.5 —[155]
2021-05-08[156] 2021-05-07
G96 Mt. Lemmon Survey[157] 		0.00045AU align=center 0.17 align=center 2.6–5.9 align=center 30.0 align=center —
2021-05-08 2021-05-09 P11gae5 0.00057AU 0.22[158] align=center 1.3–8.2 align=center 30.3 —[159]
2021-05-09 2021-05-12 P11ggM3 0.00235AU 0.91[160] align=center 1.2–7.5 align=center 30.5 —[161]
2021-05-13[162] 2021-05-08
F51 Pan-STARRS 1, Haleakala[163] 		0.00071AU align=center 0.27 align=center 4.7–10 align=center 28.8 align=center —
2021-05-14[164] 2021-05-14
I41 Palomar Mountain—ZTF[165] 		0.00044AU align=center 0.17 align=center 10–23 align=center 27.1 align=center —
2021-05-27[166] 2021-06-01
F51 Pan-STARRS 1, Haleakala[167] 		0.00188AU align=center 0.73 align=center 6.9–15 align=center 27.9 align=center
2021-05-30[168] 2021-05-30
381 Tokyo-Kiso[169] 		0.00248AU align=center 0.96 align=center 6.6–15 align=center 28.0 align=center —
2021-05-30 2021-05-30 TMG0049 0.000726AU 0.28[170] align=center 2.2–7.1 align=center 29.9 —[171]
2021-05-31[172] 2021-05-30
381 Tokyo-Kiso[173] 		0.00097AU align=center 0.38 align=center 5.0–11 align=center 28.6 align=center —
2021-05-31[174] 2021-05-31
381 Tokyo-Kiso[175] 		0.00119AU align=center 0.46 align=center 2.7–6.1 align=center 30.0 align=center —
2021-05-31 2021-05-31 C5Q2Z32 7.74E-05AU 0.030[176] align=center 0.67–4.1 align=center 31.8 align=center —[177]
2021-06-01 2021-06-01 A10xM7a 1.58E-05AU 0.0061[178] align=center 0.19–1.2 align=center 34.5 —[179]
2021-06-01[180] 2021-05-31
G96 Mt. Lemmon Survey[181] 		0.00195AU align=center 0.76 align=center 5.6–12 align=center 28.4 align=center —
2021-06-04[182] 2021-06-05
T05 ATLAS-HKO, Haleakala[183] 		0.00107AU align=center 0.42 align=center 10–23 align=center 27.1 align=center —
2021-06-12[184] 2021-06-11
F51 Pan-STARRS 1, Haleakala[185] 		0.00106AU align=center 0.41 align=center 4.8–11 align=center 28.7 align=center —
2021-06-13[186] 2021-06-08
G96 Mt. Lemmon Survey[187] 		0.00148AU align=center 0.58 align=center 6.6–15 align=center 28.0 align=center —
2021-06-15[188] 2021-06-18
W94 MAP, San Pedro de Atacama[189] 		0.00111AU align=center 0.43 align=center 8.8–20 align=center 27.4 align=center —
2021-06-17[190] 2021-06-17
T05 ATLAS-HKO, Haleakala[191] 		0.00212AU align=center 0.82 align=center 4.3–9.6 align=center 29.0 align=center —
2021-07-03[192] 2021-07-01
F51 Pan-STARRS 1, Haleakala[193] 		0.00044AU align=center 0.17 align=center 5.2–12 align=center 28.6 align=center —
2021-07-08[194] 2021-07-09
F51 Pan-STARRS 1, Haleakala[195] 		0.0012AU align=center 0.47 align=center 5.0–11 align=center 28.6 align=center —
2021-07-20[196] 2021-07-19
W94 MAP, San Pedro de Atacama[197] 		0.00131AU align=center 0.51 align=center 7.5–17 align=center 27.8 align=center
2021-07-31[198] 2021-07-30
T08 ATLAS-MLO, Mauna Loa[199] 		0.0017AU align=center 0.66 align=center 5.9–13 align=center 28.3 align=center —
2021-08-02[200] 2021-08-02
I41 Palomar Mountain—ZTF[201] 		0.0011AU align=center 0.43 align=center 12–27 align=center 26.7 align=center —
2021-08-02[202] 2021-08-02
T08 ATLAS-MLO[203] 		0.00233AU align=center 0.91 align=center 5.2–12 align=center 28.5 align=center —
2021-08-05[204] 2021-08-07
F51 Pan-STARRS 1, Haleakala[205] 		0.00188AU align=center 0.73 align=center 13–29 align=center 26.5 align=center —
2021-08-06[206] 2021-08-08
W94 MAP, San Pedro de Atacama[207] 		0.0016AU align=center 0.62 align=center 6.1–14 align=center 28.2 align=center —
2021-08-14[208] 2021-08-15
T05 ATLAS-HKO, Haleakala[209] 		0.00045AU align=center 0.17 align=center 7.3–16 align=center 27.8 align=center —
2021-08-27[210] 2021-08-27
T05 ATLAS-HKO, Haleakala[211] 		0.00204AU align=center 0.80 align=center 4.8–11 align=center 28.7 align=center —
2021-08-28[212] 2021-08-30
F51 Pan-STARRS 1, Haleakala[213] 		0.00085AU align=center 0.33 align=center 2.4–5.3 align=center 30.2 align=center —
2021-09-02[214] 2021-09-03
I41 Palomar Mountain—ZTF[215] 		0.00253AU align=center 0.98 align=center 8.1–18 align=center 27.6 align=center
2021-09-06[216] 2021-09-08
F51 Pan-STARRS 1, Haleakala[217] 		0.00177AU align=center 0.69 align=center 6.2–14 align=center 28.2 align=center —
2021-09-07[218] 2021-09-08
F51 Pan-STARRS 1, Haleakala[219] 		0.00128AU align=center 0.50 align=center 4.7–11 align=center 28.8 align=center
2021-09-08[220] 2021-09-07
G96 Mt. Lemmon Survey[221] 		0.00015AU align=center 0.06 align=center 2.3–5.1 align=center 30.4 align=center —
2021-09-08[222] 2021-09-07
703 Catalina Sky Survey[223] 		0.0008AU align=center 0.31 align=center 2.3–5.2 align=center 30.3 align=center
2021-09-08[224] 2021-09-09
K88 GINOP-KHK, Piszkesteto[225] 		0.00092AU align=center 0.36 align=center 5.7–13 align=center 28.3 align=center —
2021-09-09[226] 2021-09-05
T05 ATLAS-HKO, Haleakala[227] 		0.00126AU align=center 0.49 align=center 3.3–7.3 align=center 29.5 align=center —
2021-09-09[228] 2021-09-10
703 Catalina Sky Survey[229] 		0.00172AU align=center 0.67 align=center 6.6–15 align=center 28.0 align=center —
2021-09-11[230] 2021-09-10
T05 ATLAS-HKO, Haleakala[231] 		0.00057AU align=center 0.22 align=center 4.4–9.8 align=center 28.9 align=center —
2021-09-11[232] 2021-09-12
T08 ATLAS-MLO, Mauna Loa[233] 		0.00217AU align=center 0.84 align=center 3.9–8.7 align=center 29.2 align=center —
2021-09-12[234] 2021-09-08
G96 Mt. Lemmon Survey[235] 		0.00053AU align=center 0.20 align=center 5.6–12 align=center 28.4 align=center —
2021-09-16[236] 2021-09-13
F51 Pan-STARRS 1, Haleakala[237] 		0.00213AU align=center 0.83 align=center 4.3–9.6 align=center 29.0 align=center —
2021-09-16[238] 2021-09-17
I41 Palomar Mountain—ZTF[239] 		0.00164AU align=center 0.64 align=center 42–94 align=center 24.0 align=center —
2021-09-17[240] 2021-09-17
I41 Palomar Mountain—ZTF[241] 		9.43E-05AU align=center 0.04 align=center 3.7–8.3 align=center 29.3 align=center —
2021-09-20[242] 2021-09-23
F51 Pan-STARRS 1, Haleakala[243] 		0.00184AU align=center 0.72 align=center 5.5–12 align=center 28.4 align=center
2021-09-26[244] 2021-09-28
F52 Pan-STARRS 2, Haleakala[245] 		0.00182AU align=center 0.71 align=center 2.9–6.5 align=center 29.8 align=center —
2021-09-27[246] 2021-09-28
T05 ATLAS-HKO, Haleakala[247] 		0.00111AU align=center 0.43 align=center 4.6–10 align=center 28.8 align=center —
2021-09-30[248] 2021-10-02
G96 Mt. Lemmon Survey[249] 		0.00089AU align=center 0.34 align=center 7.2–16 align=center 27.8 align=center —
2021-10-01[250] 2021-10-02
F52 Pan-STARRS 2, Haleakala[251] 		0.00028AU align=center 0.11 align=center 1.5–3.5 align=center 31.2 align=center —
2021-10-03[252] 2021-10-03
T08 ATLAS-MLO, Mauna Loa[253] 		0.00108AU align=center 0.42 align=center 6.5–14 align=center 28.1 align=center —
2021-10-03[254] 2021-10-03
G96 Mt. Lemmon Survey[255] 		0.00196AU align=center 0.76 align=center 6.1–14 align=center 28.2 align=center —
2021-10-06[256] 2021-10-06
381 Tokyo-Kiso[257] 		0.00255AU align=center 0.99 align=center 2.8–6.2 align=center 29.9 align=center —
2021-10-10[258] 2021-10-03
F52 Pan-STARRS 2, Haleakala[259] 		0.00251AU align=center 0.97 align=center 15–34 align=center 26.2 align=center
2021-10-11[260] 2021-10-11
T05 ATLAS-HKO, Haleakala[261] 		0.00091AU align=center 0.35 align=center 4.9–11 align=center 28.7 align=center —
2021-10-11[262] 2021-10-11
T05 ATLAS-HKO, Haleakala[263] 		0.00036AU align=center 0.14 align=center 2.9–6.5 align=center 29.8 align=center —
2021-10-11[264] 2021-10-13
F51 Pan-STARRS 1, Haleakala[265] 		0.00211AU align=center 0.82 align=center 4.5–10 align=center 28.8 align=center
2021-10-12[266] 2021-10-13
G96 Mt. Lemmon Survey[267] 		0.00018AU align=center 0.07 align=center 3.7–8.2 align=center 29.3 align=center —
2021-10-14[268] 2021-10-14
T05 ATLAS-HKO, Haleakala[269] 		0.00098AU align=center 0.38 align=center 6.7–15 align=center 28.0 align=center —
2021-10-16[270] 2021-10-16
703 Catalina Sky Survey[271] 		0.00024AU align=center 0.09 align=center 2.3–5.2 align=center 30.3 align=center
2021-10-16[272] 2021-10-14
G96 Mt. Lemmon Survey[273] 		0.00257AU align=center 1.00 align=center 5.6–13 align=center 28.4 align=center —
2021-10-18[274] 2021-10-11
F51 Pan-STARRS 1, Haleakala[275] 		0.00167AU align=center 0.65 align=center 6.0–14 align=center 28.2 align=center —
2021-10-24[276] 2021-10-24
K88 GINOP-KHK, Piszkesteto[277] 		0.001AU align=center 0.39 align=center 3.6–8.1 align=center 29.3 align=center —
2021-10-25[278] 2021-10-26
G96 Mt. Lemmon Survey[279] 		0.00102AU align=center 0.40 align=center 6.7–15 align=center 28.0 align=center —
2021-10-25[280] 2021-10-25
703 Catalina Sky Survey[281] 		6.3E-05AU align=center 0.02 align=center 1.2–2.6 align=center 31.8 align=center —
2021-10-27[282] 2021-10-28
G96 Mt. Lemmon Survey[283] 		0.00086AU align=center 0.33 align=center 4.7–11 align=center 28.8 align=center —
2021-10-27[284] 2021-10-26
G96 Mt. Lemmon Survey[285] 		0.00048AU align=center 0.19 align=center 1.3–2.8 align=center 31.6 align=center —
2021-10-29[286] 2021-10-30
W94 MAP, San Pedro de Atacama[287] 		0.00077AU align=center 0.30 align=center 4.6–10 align=center 28.8 align=center —
2021-10-29[288] 2021-10-31
K88 GINOP-KHK, Piszkesteto[289] 		0.00205AU align=center 0.80 align=center 5.8–13 align=center 28.3 align=center —
2021-10-29[290] 2021-10-29
381 Tokyo-Kiso[291] 		0.00161AU align=center 0.63 align=center 3.7–8.2 align=center 29.3 align=center —
2021-10-30[292] 2021-10-27
G96 Mt. Lemmon Survey[293] 		0.00256AU align=center 0.99 align=center 16–35 align=center 26.1 align=center —
2021-10-30[294] 2021-10-31
T08 ATLAS-MLO, Mauna Loa[295] 		0.00232AU align=center 0.90 align=center 6.0–13 align=center 28.3 align=center —
2021-11-01[296] 2021-11-02
T08 ATLAS-MLO, Mauna Loa[297] 		0.0002AU align=center 0.08 align=center 3.2–7.1 align=center 29.6 align=center —
2021-11-04[298] 2021-10-31
F51 Pan-STARRS 1, Haleakala[299] 		0.00247AU align=center 0.96 align=center 3.3–7.3 align=center 29.6 align=center —
2021-11-07[300] 2021-11-11
G96 Mt. Lemmon Survey[301] 		0.00204AU align=center 0.79 align=center 2.2–4.8 align=center 28.7 align=center —
2021-11-07[302] 2021-11-06
G96 Mt. Lemmon Survey[303] 		0.00057AU align=center 0.22 align=center 2.2–4.8 align=center 30.5 align=center —
2021-11-08[304] 2021-11-07
T08 ATLAS-MLO, Mauna Loa[305] 		0.00111AU align=center 0.43 align=center 5.5–12 align=center 28.4 align=center —
2021-11-08[306] 2021-11-07
G96 Mt. Lemmon Survey[307] 		0.00092AU align=center 0.36 align=center 2.0–4.6 align=center 30.6 align=center —
2021-11-08[308] 2021-11-07
G96 Mt. Lemmon Survey[309] 		0.00204AU align=center 0.79 align=center 2.9–6.5 align=center 29.8 align=center —
2021-11-09[310] 2021-11-10
G96 Mt. Lemmon Survey[311] 		0.00083AU align=center 0.32 align=center 2.4–5.4 align=center 30.2 align=center —
2021-11-09[312] 2021-11-09
G96 Mt. Lemmon Survey[313] 		0.00039AU align=center 0.15 align=center 1.2–2.6 align=center 31.8 align=center —
2021-11-10[314] 2021-11-08
F52 Pan-STARRS 2, Haleakala[315] 		0.00072AU align=center 0.28 align=center 5.6–13 align=center 28.4 align=center —
2021-11-11[316] 2021-11-10
G96 Mt. Lemmon Survey[317] 		0.00214AU align=center 0.83 align=center 3.7–8.3 align=center 29.3 align=center —
2021-11-12[318] 2021-11-10
G96 Mt. Lemmon Survey[319] 		0.00124AU align=center 0.48 align=center 6.1–14 align=center 28.2 align=center —
2021-11-21[320] 2021-11-24
T08 ATLAS-MLO, Mauna Loa[321] 		0.00104AU align=center 0.41 align=center 6.7–15 align=center 28.0 align=center —
2021-11-26[322] 2021-11-27
703 Catalina Sky Survey[323] 		0.00206AU align=center 0.80 align=center 8.2–18 align=center 27.5 align=center
2021-11-28[324] 2021-11-27
G96 Mt. Lemmon Survey[325] 		0.00136AU align=center 0.53 align=center 5.4–12 align=center 28.5 align=center —
2021-11-30[326] 2021-12-02
G96 Mt. Lemmon Survey[327] 		0.00136AU align=center 0.39 align=center 2.6–5.8 align=center 30.1 align=center —
2021-12-01[328] 2021-11-29
G96 Mt. Lemmon Survey[329] 		0.00096AU align=center 0.37 align=center 3.5–7.9 align=center 29.4 align=center —
2021-12-01[330] 2021-12-02
I41 Palomar Mountain—ZTF[331] 		0.00135AU align=center 0.53 align=center 4.5–10 align=center 28.9 align=center —
2021-12-04[332] 2021-12-02
G96 Mt. Lemmon Survey[333] 		0.00206AU align=center 0.80 align=center 3.3–7.4 align=center 29.5 align=center —
2021-12-05[334] 2021-12-03
G96 Mt. Lemmon Survey[335] 		0.00212AU align=center 0.82 align=center 3.0–6.7 align=center 29.8 align=center —
2021-12-09[336] 2021-12-12
G96 Mt. Lemmon Survey[337] 		0.00214AU align=center 0.83 align=center 5.8–13 align=center 28.3 align=center
2021-12-09[338] 2021-12-08
G96 Mt. Lemmon Survey[339] 		0.0016AU align=center 0.62 align=center 3.6–8.0 align=center 29.4 align=center
2021-12-10[340] 2021-12-08
G96 Mt. Lemmon Survey[341] 		0.0012AU align=center 0.47 align=center 5.2–12 align=center 28.6 align=center —
2021-12-11[342] 2021-12-08
G96 Mt. Lemmon Survey[343] 		0.00251AU align=center 0.98 align=center 5.2–12 align=center 28.5 align=center —
2021-12-16[344] 2021-12-12
G96 Mt. Lemmon Survey[345] 		0.0014AU align=center 0.54 align=center 6.0–13 align=center 28.2 align=center

Warning times by size

This sub-section visualises the warning times of the close approaches listed in the above table, depending on the size of the asteroid. It shows the effectiveness of asteroid warning systems at detecting close approaches in 2021. The sizes of the charts show the relative sizes of the asteroids to scale. For comparison, the approximate size of a person is also shown. This is based the absolute magnitude of each asteroid, an approximate measure of size based on brightness.

Absolute magnitude 30 and greater (size of a person for comparison)Absolute magnitude 29-30Absolute magnitude 28-29Absolute magnitude 27-28Absolute magnitude 26-27(probable size of the Chelyabinsk meteor)Absolute magnitude 25-26 Absolute magnitude less than 25 (largest)

Predicted close approaches

Below is the list of predicted close approaches of near-Earth asteroids larger than magnitude 27, that were predicted to occur in 2021.[346] This relates to the effectiveness of asteroid cataloging systems at predicting close approaches in 2021. (with a 9 day observation arc from January 2018) could have passed as far as 3abbr=unitNaNabbr=unit from Earth.[24]

For asteroids which were observed but not predicted in advance, see the main list above.

ObjectPredicted Date of closest approachActual Date of closest approachdata-sort-type="number" Predicted closest approach range (Lunar
distance)		data-sort-type="number" Actual closest approach distance (Lunar
distance)		data-sort-type="number" (H)
(abs. mag)		data-sort-type="number" Approx. Size (m)
2021-01-26 ±7 days [347] Not observed in 2021[348] align=center 0.74–8.2 (0.97 nominal)align=center Not observed in 2021 align=center 26.4 align=center 14–31

Notes

Additional examples

Confirmed Earth approaches in 2021! Passed within! #
1LD 145
5abbr=onNaNabbr=on586
10abbr=onNaNabbr=on1018
0.05AU1584
0.1AU2312
0.2AU3391

Below is an example list of near-Earth asteroids that passed or will pass more than 1 lunar distance (384,400 km or 0.00256 AU) from Earth in 2021.

Objectdata-sort-type="number"Size
(meters)		data-sort-type="number"Nearest approach
(lunar
distances)		DateRef
120-260 2021-02-07
330-750 2021-02-26
29-65 2021-03-03
30 2021-03-04
99942 Apophis 370 2021-03-06
550 2021-03-21
140-310 2021-06-25
1,200[349] 2021-07-09
640-1,400 2021-07-21
97-220 2021-07-25
460-1,000 2021-08-06
1,374 2021-08-21
2019 XS 48-110 2021-11-09
3361 Orpheus 300 2021-11-21
130 2021-11-29
4660 Nereus 330 2021-12-11
790 2021-12-17
2018 AH[350] 80-170 12.18 2021-12-27
Planet Venus[351] — 2021-12-31 JPL

Notes

See also

Notes and References

  1. passed Earth with a velocity with respect to Earth of 27.7 km/s and was moving away from the Sun at 37.0 km/s.
  2. Discovery date, and if the object was confirmed and previously undiscovered, the discoverer
  3. Distance from the center of Earth to the center of the object. See the NASA/JPL Solar System Dynamics Glossary: Geocentric. Earth has a radius of approximately 6,400 km (0.0166 LD).
  4. Objects that approached closer to the Moon than Earth are marked with a check.
  5. For unconfirmed asteroids, the provided distance range is for the 25th and 75th percentile. As a result, there is a 50% chance the asteroid's approach distance was outside of this range. Additionally, the uncertainty is usually asymmetric, so an asteroid at a nominal distance of 0.4-0.7 LD may have been more likely to only approach to 1.0 LD than to 0.3 LD.
  6. Web site: JPL Small-Body Database Browser: (2021 AA). Jet Propulsion Laboratory. 30 October 2021.
  7. Web site: 2021 AA. Minor Planet Center. International Astronomical Union. 30 October 2021.
  8. Web site: JPL Small-Body Database Browser: (2021 AH). Jet Propulsion Laboratory. 30 October 2021.
  9. Web site: 2021 AH. Minor Planet Center. International Astronomical Union. 30 October 2021.
  10. Web site: JPL Small-Body Database Browser: (2021 AH8). Jet Propulsion Laboratory. 30 October 2021.
  11. Web site: 2021 AH8. Minor Planet Center. International Astronomical Union. 30 October 2021.
  12. Web site: JPL Small-Body Database Browser: (2021 AS2). Jet Propulsion Laboratory. 30 October 2021.
  13. Web site: 2021 AS2. Minor Planet Center. International Astronomical Union. 30 October 2021.
  14. Web site: JPL Small-Body Database Browser: (2021 BR2). Jet Propulsion Laboratory. 30 October 2021.
  15. Web site: 2021 BR2. Minor Planet Center. International Astronomical Union. 30 October 2021.
  16. Web site: JPL Small-Body Database Browser: (2021 BK). Jet Propulsion Laboratory. 30 October 2021.
  17. Web site: 2021 BK. Minor Planet Center. International Astronomical Union. 30 October 2021.
  18. Web site: JPL Small-Body Database Browser: (2021 BV1). Jet Propulsion Laboratory. 30 October 2021.
  19. Web site: 2021 BV1. Minor Planet Center. International Astronomical Union. 30 October 2021.
  20. Web site: JPL Small-Body Database Browser: (2021 BO). Jet Propulsion Laboratory. 30 October 2021.
  21. Web site: 2021 BO. Minor Planet Center. International Astronomical Union. 30 October 2021.
  22. Web site: JPL Small-Body Database Browser: (2021 BO1). Jet Propulsion Laboratory. 30 October 2021.
  23. Web site: 2021 BO1. Minor Planet Center. International Astronomical Union. 30 October 2021.
  24. Web site: JPL Small-Body Database Browser: (2018 BA3). Jet Propulsion Laboratory. 30 October 2021.
  25. Web site: 2018 BA3. Minor Planet Center. International Astronomical Union. 30 October 2021.
  26. Web site: JPL Small-Body Database Browser: (2021 CV). Jet Propulsion Laboratory. 30 October 2021.
  27. Web site: 2021 CV. Minor Planet Center. International Astronomical Union. 30 October 2021.
  28. Web site: JPL Small-Body Database Browser: (2021 CZ3). Jet Propulsion Laboratory. 30 October 2021.
  29. Web site: 2021 CZ3. Minor Planet Center. International Astronomical Union. 30 October 2021.
  30. Web site: JPL Small-Body Database Browser: (2021 CO). Jet Propulsion Laboratory. 30 October 2021.
  31. Web site: 2021 CO. Minor Planet Center. International Astronomical Union. 30 October 2021.
  32. Web site: JPL Small-Body Database Browser: (2021 CQ5). Jet Propulsion Laboratory. 30 October 2021.
  33. Web site: 2021 CQ5. Minor Planet Center. International Astronomical Union. 30 October 2021.
  34. Web site: JPL Small-Body Database Browser: (2021 CC6). Jet Propulsion Laboratory. 30 October 2021.
  35. Web site: 2021 CC6. Minor Planet Center. International Astronomical Union. 30 October 2021.
  36. Web site: JPL Small-Body Database Browser: (2021 CC7). Jet Propulsion Laboratory. 30 October 2021.
  37. Web site: 2021 CC7. Minor Planet Center. International Astronomical Union. 30 October 2021.
  38. Web site: JPL Small-Body Database Browser: (2021 CA6). Jet Propulsion Laboratory. 30 October 2021.
  39. Web site: 2021 CA6. Minor Planet Center. International Astronomical Union. 30 October 2021.
  40. Web site: JPL Small-Body Database Browser: (2021 CS6). Jet Propulsion Laboratory. 30 October 2021.
  41. Web site: 2021 CS6. Minor Planet Center. International Astronomical Union. 30 October 2021.
  42. Web site: JPL Small-Body Database Browser: (2021 CW7). Jet Propulsion Laboratory. 30 October 2021.
  43. Web site: 2021 CW7. Minor Planet Center. International Astronomical Union. 30 October 2021.
  44. Web site: JPL Small-Body Database Browser: (2021 DN1). Jet Propulsion Laboratory. 30 October 2021.
  45. Web site: 2021 DN1. Minor Planet Center. International Astronomical Union. 30 October 2021.
  46. Web site: JPL Small-Body Database Browser: (2021 DG). Jet Propulsion Laboratory. 30 October 2021.
  47. Web site: 2021 DG. Minor Planet Center. International Astronomical Union. 30 October 2021.
  48. Web site: JPL Small-Body Database Browser: (2021 DA2). Jet Propulsion Laboratory. 30 October 2021.
  49. Web site: 2021 DA2. Minor Planet Center. International Astronomical Union. 30 October 2021.
  50. Distance error: 0.0015 AU, approach range: 0.27 to 1.40 LD. There was a roughly 0.6% chance of impact.
  51. Web site: "Pseudo-MPEC" for C4YK182. Bill. Gray. Project Pluto. 7 March 2021. 9 March 2021. https://web.archive.org/web/20210312030310/https://projectpluto.com/neocp2/mpecs/ZTF0KfF.htm. 12 March 2021. dead.
  52. Web site: JPL Small-Body Database Browser: (2021 EA). Jet Propulsion Laboratory. 30 October 2021.
  53. Web site: 2021 EA. Minor Planet Center. International Astronomical Union. 30 October 2021.
  54. Distance error: 0.000097 AU, approach range: 0.21 to 0.28 LD.
  55. Web site: "Pseudo-MPEC" for C4YK182. Bill. Gray. Project Pluto. 7 March 2021. 9 March 2021. https://web.archive.org/web/20210312030336/https://projectpluto.com/neocp2/mpecs/C4YK182.htm. 12 March 2021. dead.
  56. Web site: JPL Small-Body Database Browser: (2021 EF1). Jet Propulsion Laboratory. 30 October 2021.
  57. Web site: 2021 EF1. Minor Planet Center. International Astronomical Union. 30 October 2021.
  58. Web site: JPL Small-Body Database Browser: (2021 EG3). Jet Propulsion Laboratory. 30 October 2021.
  59. Web site: 2021 EG3. Minor Planet Center. International Astronomical Union. 30 October 2021.
  60. Distance error: 0.0005 AU, approach range: 0.28 to 0.66 LD.
  61. Web site: "Pseudo-MPEC" for ScKo07a. Bill. Gray. Project Pluto. 15 March 2021. 15 March 2021. https://web.archive.org/web/20210315151054/https://projectpluto.com/neocp2/mpecs/ScKo07a.htm. 15 March 2021. dead.
  62. Web site: JPL Small-Body Database Browser: (2021 EN4). Jet Propulsion Laboratory. 30 October 2021.
  63. Web site: 2021 EN4. Minor Planet Center. International Astronomical Union. 30 October 2021.
  64. Web site: JPL Small-Body Database Browser: (2021 EP4). Jet Propulsion Laboratory. 30 October 2021.
  65. Web site: 2021 EP4. Minor Planet Center. International Astronomical Union. 30 October 2021.
  66. Web site: JPL Small-Body Database Browser: (2021 EQ3). Jet Propulsion Laboratory. 30 October 2021.
  67. Web site: 2021 EQ3. Minor Planet Center. International Astronomical Union. 30 October 2021.
  68. Web site: JPL Small-Body Database Browser: (2021 FM2). Jet Propulsion Laboratory. 30 October 2021.
  69. Web site: 2021 FM2. Minor Planet Center. International Astronomical Union. 30 October 2021.
  70. Web site: JPL Small-Body Database Browser: (2021 FF2). Jet Propulsion Laboratory. 30 October 2021.
  71. Web site: 2021 FF2. Minor Planet Center. International Astronomical Union. 30 October 2021.
  72. Distance error: 0.00011 AU, approach range 0.037 to 0.12 LD. There was a roughly 11.7% chance of impact.
  73. Web site: "Pseudo-MPEC" for B03SK22. Bill. Gray. Project Pluto. 27 March 2021. 27 March 2021. https://web.archive.org/web/20210327010442/https://projectpluto.com/neocp2/mpecs/B03SK22.htm. 27 March 2021. dead.
  74. Web site: JPL Small-Body Database Browser: (2021 FO1). Jet Propulsion Laboratory. 30 October 2021.
  75. Web site: 2021 FO1. Minor Planet Center. International Astronomical Union. 30 October 2021.
  76. Web site: JPL Small-Body Database Browser: (2021 FH). Jet Propulsion Laboratory. 30 October 2021.
  77. Web site: 2021 FH. Minor Planet Center. International Astronomical Union. 30 October 2021.
  78. Web site: JPL Small-Body Database Browser: (2021 FP2). Jet Propulsion Laboratory. 30 October 2021.
  79. Web site: 2021 FP2. Minor Planet Center. International Astronomical Union. 30 October 2021.
  80. Distance error: 0.000082 AU, approach range: 0.55 to 0.61 LD.
  81. Web site: "Pseudo-MPEC" for A10w8qG. Bill. Gray. Project Pluto. 4 April 2021. 4 April 2021. https://web.archive.org/web/20210404015921/https://projectpluto.com/neocp2/mpecs/A10w8qG.htm. 4 April 2021. dead.
  82. Web site: JPL Small-Body Database Browser: (2021 GE2). Jet Propulsion Laboratory. 30 October 2021.
  83. Web site: 2021 GE2. Minor Planet Center. International Astronomical Union. 30 October 2021.
  84. Distance error: 0.0015 AU, approach range: 0.40 to 1.67 LD.
  85. Web site: "Pseudo-MPEC" for P11ekJ0. Bill. Gray. Project Pluto. 8 April 2021. 8 April 2021. https://web.archive.org/web/20210408045517/https://projectpluto.com/neocp2/mpecs/P11ekJ0.htm. 8 April 2021. dead.
  86. Web site: JPL Small-Body Database Browser: (2021 GV). Jet Propulsion Laboratory. 30 October 2021.
  87. Web site: 2021 GV. Minor Planet Center. International Astronomical Union. 30 October 2021.
  88. Web site: JPL Small-Body Database Browser: (2021 GS). Jet Propulsion Laboratory. 30 October 2021.
  89. Web site: 2021 GS. Minor Planet Center. International Astronomical Union. 30 October 2021.
  90. Web site: JPL Small-Body Database Browser: (2021 GZ7). Jet Propulsion Laboratory. 30 October 2021.
  91. Web site: 2021 GZ7. Minor Planet Center. International Astronomical Union. 30 October 2021.
  92. Distance error: 0.00004 AU, approach range: 0.082 to 0.11 LD.
  93. Web site: "Pseudo-MPEC" for P11eyxx. Bill. Gray. Project Pluto. 10 April 2021. 10 April 2021. https://web.archive.org/web/20210410043720/https://projectpluto.com/neocp2/mpecs/P11eyxx.htm. 10 April 2021. dead.
  94. Distance error: 0.0008 AU, approach range: 0.64 to 1.28 LD.
  95. Web site: "Pseudo-MPEC" for A10wiOp. Bill. Gray. Project Pluto. 7 April 2021. 7 April 2021. https://web.archive.org/web/20210407214453/https://projectpluto.com/neocp2/mpecs/A10wiOp.htm. 7 April 2021. dead.
  96. Web site: JPL Small-Body Database Browser: (2021 GV4). Jet Propulsion Laboratory. 30 October 2021.
  97. Web site: 2021 GV4. Minor Planet Center. International Astronomical Union. 30 October 2021.
  98. Web site: JPL Small-Body Database Browser: (2021 GL16). Jet Propulsion Laboratory. 30 October 2021.
  99. Web site: 2021 GL16. Minor Planet Center. International Astronomical Union. 30 October 2021.
  100. Web site: JPL Small-Body Database Browser: (2021 GT3). Jet Propulsion Laboratory. 30 October 2021.
  101. Web site: 2021 GT3. Minor Planet Center. International Astronomical Union. 30 October 2021.
  102. Distance error: 0.00000182 AU, approach range: 0.854 to 0.856 LD.
  103. Web site: "Pseudo-MPEC" for TMG0042. Bill. Gray. Project Pluto. 16 April 2021. 18 April 2021. https://web.archive.org/web/20210418213714/https://projectpluto.com/neocp2/mpecs/TMG0042.htm. 18 April 2021. dead.
  104. Web site: JPL Small-Body Database Browser: (2021 GQ5). Jet Propulsion Laboratory. 30 October 2021.
  105. Web site: 2021 GQ5. Minor Planet Center. International Astronomical Union. 30 October 2021.
  106. Distance error: 0.0000170 AU, approach range: 0.48 to 0.51 LD.
  107. Web site: "Pseudo-MPEC" for TMG0044. Bill. Gray. Project Pluto. 18 April 2021. 18 April 2021. https://web.archive.org/web/20210418213804/https://projectpluto.com/neocp2/mpecs/TMG0044.htm. 18 April 2021. dead.
  108. Distance error: >0.001 AU, approach range: 0.18 to 93 LD. Although highly asymmetric, there is still a 56% chance the asteroid passed within 2 LD of Earth, and a 15% chance it passed within 7 Earth radii of the planet.
  109. Web site: "Pseudo-MPEC" for P11exfR. Bill. Gray. Project Pluto. 10 April 2021. 10 April 2021. https://web.archive.org/web/20210410043830/https://projectpluto.com/neocp2/mpecs/P11exfR.htm. 10 April 2021. dead.
  110. Distance error: 0.000000822 AU.
  111. Web site: "Pseudo-MPEC" for TMG0045. Bill. Gray. Project Pluto. 17 April 2021. 18 April 2021. https://web.archive.org/web/20210418213924/https://projectpluto.com/neocp2/mpecs/TMG0045.htm. 18 April 2021. dead.
  112. Web site: JPL Small-Body Database Browser: (2021 GA168). Jet Propulsion Laboratory. 3 January 2022.
  113. Web site: 2021 GA168. Minor Planet Center. International Astronomical Union. 3 January 2022.
  114. Web site: JPL Small-Body Database Browser: (2021 GW4). Jet Propulsion Laboratory. 30 October 2021.
  115. Web site: 2021 GW4. Minor Planet Center. International Astronomical Union. 30 October 2021.
  116. Web site: JPL Small-Body Database Browser: (2021 GC13). Jet Propulsion Laboratory. 30 October 2021.
  117. Web site: 2021 GC13. Minor Planet Center. International Astronomical Union. 30 October 2021.
  118. Distance error: 0.0009 AU, approach range: 0.13 to 0.86 LD. There was a roughly 2.2% chance of impact.
  119. Web site: "Pseudo-MPEC" for ZTF0KwS. Bill. Gray. Project Pluto. 18 April 2021. 18 April 2021. https://web.archive.org/web/20210418214110/https://projectpluto.com/neocp2/mpecs/ZTF0KwS.htm. 18 April 2021. dead.
  120. Web site: JPL Small-Body Database Browser: (2021 GC8). Jet Propulsion Laboratory. 30 October 2021.
  121. Web site: 2021 GC8. Minor Planet Center. International Astronomical Union. 30 October 2021.
  122. Web site: JPL Small-Body Database Browser: (2021 GQ10). Jet Propulsion Laboratory. 30 October 2021.
  123. Web site: 2021 GQ10. Minor Planet Center. International Astronomical Union. 30 October 2021.
  124. Web site: JPL Small-Body Database Browser: (2021 GW16). Jet Propulsion Laboratory. 30 October 2021.
  125. Web site: 2021 GW16. Minor Planet Center. International Astronomical Union. 30 October 2021.
  126. Web site: JPL Small-Body Database Browser: (2021 HC1). Jet Propulsion Laboratory. 30 October 2021.
  127. Web site: 2021 HC1. Minor Planet Center. International Astronomical Union. 30 October 2021.
  128. Web site: JPL Small-Body Database Browser: (2021 GF10). Jet Propulsion Laboratory. 30 October 2021.
  129. Web site: 2021 GF10. Minor Planet Center. International Astronomical Union. 30 October 2021.
  130. Web site: JPL Small-Body Database Browser: (2021 GN10). Jet Propulsion Laboratory. 30 October 2021.
  131. Web site: 2021 GN10. Minor Planet Center. International Astronomical Union. 30 October 2021.
  132. Distance uncertainty: 0.00070 AU, approach range: 0.58 to 1.07 LD.
  133. Web site: "Pseudo-MPEC" for ZTF0KyD. Bill. Gray. Project Pluto. 23 April 2021. 24 April 2021. https://web.archive.org/web/20210423230226/https://projectpluto.com/neocp2/mpecs/ZTF0KyD.htm. 23 April 2021. dead.
  134. Web site: JPL Small-Body Database Browser: (2021 HE1). Jet Propulsion Laboratory. 30 October 2021.
  135. Web site: 2021 HE1. Minor Planet Center. International Astronomical Union. 30 October 2021.
  136. Distance error: 0.000166 AU, approach range: 0.35 to 0.48 LD.
  137. Web site: "Pseudo-MPEC" for P11f7ua. Bill. Gray. Project Pluto. 18 April 2021. 18 April 2021. https://web.archive.org/web/20210418214217/https://projectpluto.com/neocp2/mpecs/P11f7ua.htm. 18 April 2021. dead.
  138. Distance error: 0.0009 AU, approach range: 0.14 to 0.89 LD.
  139. Web site: "Pseudo-MPEC" for B04SK17. Bill. Gray. Project Pluto. 19 April 2021. 19 April 2021. https://web.archive.org/web/20210419223141/https://projectpluto.com/neocp2/mpecs/B04SK17.htm. 19 April 2021. dead.
  140. Web site: JPL Small-Body Database Browser: (2021 HN). Jet Propulsion Laboratory. 30 October 2021.
  141. Web site: 2021 HN. Minor Planet Center. International Astronomical Union. 30 October 2021.
  142. Distance error: 0.00078 AU, approach range: 0.077 to 0.70 LD. There was a roughly 5% chance of impact.
  143. Web site: "Pseudo-MPEC" for A10wMMp. Bill. Gray. Project Pluto. 30 April 2021. 20 June 2021. https://web.archive.org/web/20210620225518/https://projectpluto.com/neocp2/mpecs/A10wMMp.htm. 20 June 2021. dead.
  144. Distance error: highly asymmetric, approach range: 0.011 to 30.7 LD. There was a roughly 38% chance of impact.
  145. Web site: "Pseudo-MPEC" for ZTF0Kzz. Bill. Gray. Project Pluto. 29 April 2021. 20 June 2021. https://web.archive.org/web/20210620225613/https://projectpluto.com/neocp2/mpecs/ZTF0Kzz.htm. 20 June 2021. dead.
  146. Distance error: 0.001 AU, approach range: 0.066 to 0.86 LD. There was a roughly 12.1% chance of impact.
  147. Web site: "Pseudo-MPEC" for S514008. Bill. Gray. Project Pluto. 7 May 2021. 20 June 2021. https://web.archive.org/web/20210620225645/https://projectpluto.com/neocp2/mpecs/S514008.htm. 20 June 2021. dead.
  148. Web site: JPL Small-Body Database Browser: (2021 JW). Jet Propulsion Laboratory. 30 October 2021.
  149. Web site: 2021 JW. Minor Planet Center. International Astronomical Union. 30 October 2021.
  150. Web site: JPL Small-Body Database Browser: (2021 JV). Jet Propulsion Laboratory. 30 October 2021.
  151. Web site: 2021 JV. Minor Planet Center. International Astronomical Union. 30 October 2021.
  152. Web site: JPL Small-Body Database Browser: (2021 JS1). Jet Propulsion Laboratory. 30 October 2021.
  153. Web site: 2021 JS1. Minor Planet Center. International Astronomical Union. 30 October 2021.
  154. Distance error: 0.0004 AU, approach range: 0.37 to 0.68 LD.
  155. Web site: "Pseudo-MPEC" for P11gae7. Bill. Gray. Project Pluto. 2 June 2021. 20 June 2021. https://web.archive.org/web/20210620225722/https://projectpluto.com/neocp2/mpecs/P11gae7.htm. 20 June 2021. dead.
  156. Web site: JPL Small-Body Database Browser: (2021 JQ2). Jet Propulsion Laboratory. 30 October 2021.
  157. Web site: 2021 JQ2. Minor Planet Center. International Astronomical Union. 30 October 2021.
  158. Distance error: 0.00022 AU, approach range: 0.16 to 0.38 LD.
  159. Web site: "Pseudo-MPEC" for P11gae5. Bill. Gray. Project Pluto. 17 May 2021. 20 June 2021. https://web.archive.org/web/20210620225751/https://projectpluto.com/neocp2/mpecs/P11gae5.htm. 20 June 2021. dead.
  160. Distance error: 0.0010 AU, approach range: 0.61 to 1.51 LD.
  161. Web site: "Pseudo-MPEC" for P11ggM3. Bill. Gray. Project Pluto. 17 May 2021. 20 June 2021. https://web.archive.org/web/20210620225831/https://projectpluto.com/neocp2/mpecs/P11ggM3.htm. 20 June 2021. dead.
  162. Web site: JPL Small-Body Database Browser: (2021 JB6). Jet Propulsion Laboratory. 30 October 2021.
  163. Web site: 2021 JB6. Minor Planet Center. International Astronomical Union. 30 October 2021.
  164. Web site: JPL Small-Body Database Browser: (2021 JU6). Jet Propulsion Laboratory. 30 October 2021.
  165. Web site: 2021 JU6. Minor Planet Center. International Astronomical Union. 30 October 2021.
  166. Web site: JPL Small-Body Database Browser: (2021 LV). Jet Propulsion Laboratory. 30 October 2021.
  167. Web site: 2021 LV. Minor Planet Center. International Astronomical Union. 30 October 2021.
  168. Web site: JPL Small-Body Database Browser: (2021 KO2). Jet Propulsion Laboratory. 30 October 2021.
  169. Web site: 2021 KO2. Minor Planet Center. International Astronomical Union. 30 October 2021.
  170. Distance error: 0.00000017 AU, approach range: 0.2824 to 0.2825 LD.
  171. Web site: "Pseudo-MPEC" for TMG0049. Bill. Gray. Project Pluto. 4 June 2021. 20 June 2021. https://web.archive.org/web/20210620225930/https://projectpluto.com/neocp2/mpecs/TMG0049.htm. 20 June 2021. dead.
  172. Web site: JPL Small-Body Database Browser: (2021 KN2). Jet Propulsion Laboratory. 30 October 2021.
  173. Web site: 2021 KN2. Minor Planet Center. International Astronomical Union. 30 October 2021.
  174. Web site: JPL Small-Body Database Browser: (2021 KQ2). Jet Propulsion Laboratory. 30 October 2021.
  175. Web site: 2021 KQ2. Minor Planet Center. International Astronomical Union. 30 October 2021.
  176. Distance error: 0.00002 AU, approach range: 0.024 to 0.041 LD. There was a roughly 5.6% chance of impact.
  177. Web site: "Pseudo-MPEC" for C5Q2Z32. Bill. Gray. Project Pluto. 5 June 2021. 20 June 2021. https://web.archive.org/web/20210620230046/https://projectpluto.com/neocp2/mpecs/C5Q2Z32.htm. 20 June 2021. dead.
  178. Distance error: 0.0000016 AU, approach range: 0.0052 to 0.0068 LD. There was a roughly 99.3% chance of impact.
  179. Web site: "Pseudo-MPEC" for A10xM7a. Bill. Gray. Project Pluto. 6 June 2021. 20 June 2021. https://web.archive.org/web/20210620230119/https://projectpluto.com/neocp2/mpecs/A10xM7a.htm. 20 June 2021. dead.
  180. Web site: JPL Small-Body Database Browser: (2021 KT2). Jet Propulsion Laboratory. 30 October 2021.
  181. Web site: 2021 KT2. Minor Planet Center. International Astronomical Union. 30 October 2021.
  182. Web site: JPL Small-Body Database Browser: (2021 LX1). Jet Propulsion Laboratory. 30 October 2021.
  183. Web site: 2021 LX1. Minor Planet Center. International Astronomical Union. 30 October 2021.
  184. Web site: JPL Small-Body Database Browser: (2021 LG5). Jet Propulsion Laboratory. 30 October 2021.
  185. Web site: 2021 LG5. Minor Planet Center. International Astronomical Union. 30 October 2021.
  186. Web site: JPL Small-Body Database Browser: (2021 LO2). Jet Propulsion Laboratory. 30 October 2021.
  187. Web site: 2021 LO2. Minor Planet Center. International Astronomical Union. 30 October 2021.
  188. Web site: JPL Small-Body Database Browser: (2021 MU). Jet Propulsion Laboratory. 30 October 2021.
  189. Web site: 2021 MU. Minor Planet Center. International Astronomical Union. 30 October 2021.
  190. Web site: JPL Small-Body Database Browser: (2021 ME). Jet Propulsion Laboratory. 30 October 2021.
  191. Web site: 2021 ME. Minor Planet Center. International Astronomical Union. 30 October 2021.
  192. Web site: JPL Small-Body Database Browser: (2021 NA). Jet Propulsion Laboratory. 30 October 2021.
  193. Web site: 2021 NA. Minor Planet Center. International Astronomical Union. 30 October 2021.
  194. Web site: JPL Small-Body Database Browser: (2021 NU3). Jet Propulsion Laboratory. 30 October 2021.
  195. Web site: 2021 NU3. Minor Planet Center. International Astronomical Union. 30 October 2021.
  196. Web site: JPL Small-Body Database Browser: (2021 OV). Jet Propulsion Laboratory. 30 October 2021.
  197. Web site: 2021 OV. Minor Planet Center. International Astronomical Union. 30 October 2021.
  198. Web site: JPL Small-Body Database Browser: (2021 OD1). Jet Propulsion Laboratory. 30 October 2021.
  199. Web site: 2021 OD1. Minor Planet Center. International Astronomical Union. 30 October 2021.
  200. Web site: JPL Small-Body Database Browser: (2021 PC). Jet Propulsion Laboratory. 30 October 2021.
  201. Web site: 2021 PC. Minor Planet Center. International Astronomical Union. 30 October 2021.
  202. Web site: JPL Small-Body Database Browser: (2021 PL132). Jet Propulsion Laboratory. 3 January 2022.
  203. Web site: 2021 PL132. Minor Planet Center. International Astronomical Union. 3 January 2022.
  204. Web site: JPL Small-Body Database Browser: (2021 PY4). Jet Propulsion Laboratory. 30 October 2021.
  205. Web site: 2021 PY4. Minor Planet Center. International Astronomical Union. 30 October 2021.
  206. Web site: JPL Small-Body Database Browser: (2021 PK4). Jet Propulsion Laboratory. 30 October 2021.
  207. Web site: 2021 PK4. Minor Planet Center. International Astronomical Union. 30 October 2021.
  208. Web site: JPL Small-Body Database Browser: (2021 PA17). Jet Propulsion Laboratory. 30 October 2021.
  209. Web site: 2021 PA17. Minor Planet Center. International Astronomical Union. 30 October 2021.
  210. Web site: JPL Small-Body Database Browser: (2021 QD1). Jet Propulsion Laboratory. 30 October 2021.
  211. Web site: 2021 QD1. Minor Planet Center. International Astronomical Union. 30 October 2021.
  212. Web site: JPL Small-Body Database Browser: (2021 QV3). Jet Propulsion Laboratory. 30 October 2021.
  213. Web site: 2021 QV3. Minor Planet Center. International Astronomical Union. 30 October 2021.
  214. Web site: JPL Small-Body Database Browser: (2021 RN5). Jet Propulsion Laboratory. 30 October 2021.
  215. Web site: 2021 RN5. Minor Planet Center. International Astronomical Union. 30 October 2021.
  216. Web site: JPL Small-Body Database Browser: (2021 RT4). Jet Propulsion Laboratory. 30 October 2021.
  217. Web site: 2021 RT4. Minor Planet Center. International Astronomical Union. 30 October 2021.
  218. Web site: JPL Small-Body Database Browser: (2021 RS100). Jet Propulsion Laboratory. 30 October 2021.
  219. Web site: 2021 RS100. Minor Planet Center. International Astronomical Union. 30 October 2021.
  220. Web site: JPL Small-Body Database Browser: (2021 RS2). Jet Propulsion Laboratory. 30 October 2021.
  221. Web site: 2021 RS2. Minor Planet Center. International Astronomical Union. 30 October 2021.
  222. Web site: JPL Small-Body Database Browser: (2021 RP2). Jet Propulsion Laboratory. 30 October 2021.
  223. Web site: 2021 RP2. Minor Planet Center. International Astronomical Union. 30 October 2021.
  224. Web site: JPL Small-Body Database Browser: (2021 RS5). Jet Propulsion Laboratory. 30 October 2021.
  225. Web site: 2021 RS5. Minor Planet Center. International Astronomical Union. 30 October 2021.
  226. Web site: JPL Small-Body Database Browser: (2021 RQ2). Jet Propulsion Laboratory. 30 October 2021.
  227. Web site: 2021 RQ2. Minor Planet Center. International Astronomical Union. 30 October 2021.
  228. Web site: JPL Small-Body Database Browser: (2021 RB6). Jet Propulsion Laboratory. 30 October 2021.
  229. Web site: 2021 RB6. Minor Planet Center. International Astronomical Union. 30 October 2021.
  230. Web site: JPL Small-Body Database Browser: (2021 RG6). Jet Propulsion Laboratory. 30 October 2021.
  231. Web site: 2021 RG6. Minor Planet Center. International Astronomical Union. 30 October 2021.
  232. Web site: JPL Small-Body Database Browser: (2021 RG12). Jet Propulsion Laboratory. 30 October 2021.
  233. Web site: 2021 RG12. Minor Planet Center. International Astronomical Union. 30 October 2021.
  234. Web site: JPL Small-Body Database Browser: (2021 RR5). Jet Propulsion Laboratory. 30 October 2021.
  235. Web site: 2021 RR5. Minor Planet Center. International Astronomical Union. 30 October 2021.
  236. Web site: JPL Small-Body Database Browser: (2021 RF16). Jet Propulsion Laboratory. 30 October 2021.
  237. Web site: 2021 RF16. Minor Planet Center. International Astronomical Union. 30 October 2021.
  238. Web site: JPL Small-Body Database Browser: (2021 SG). Jet Propulsion Laboratory. 30 October 2021.
  239. Web site: 2021 SG. Minor Planet Center. International Astronomical Union. 30 October 2021.
  240. Web site: JPL Small-Body Database Browser: (2021 SP). Jet Propulsion Laboratory. 30 October 2021.
  241. Web site: 2021 SP. Minor Planet Center. International Astronomical Union. 30 October 2021.
  242. Web site: JPL Small-Body Database Browser: (2021 SQ). Jet Propulsion Laboratory. 30 October 2021.
  243. Web site: 2021 SQ. Minor Planet Center. International Astronomical Union. 30 October 2021.
  244. Web site: JPL Small-Body Database Browser: (2021 SW1). Jet Propulsion Laboratory. 30 October 2021.
  245. Web site: 2021 SW1. Minor Planet Center. International Astronomical Union. 30 October 2021.
  246. Web site: JPL Small-Body Database Browser: (2021 SQ1). Jet Propulsion Laboratory. 30 October 2021.
  247. Web site: 2021 SQ1. Minor Planet Center. International Astronomical Union. 30 October 2021.
  248. Web site: JPL Small-Body Database Browser: (2021 TT). Jet Propulsion Laboratory. 30 October 2021.
  249. Web site: 2021 TT. Minor Planet Center. International Astronomical Union. 30 October 2021.
  250. Web site: JPL Small-Body Database Browser: (2021 TX). Jet Propulsion Laboratory. 30 October 2021.
  251. Web site: 2021 TX. Minor Planet Center. International Astronomical Union. 30 October 2021.
  252. Web site: JPL Small-Body Database Browser: (2021 TV1). Jet Propulsion Laboratory. 30 October 2021.
  253. Web site: 2021 TV1. Minor Planet Center. International Astronomical Union. 30 October 2021.
  254. Web site: JPL Small-Body Database Browser: (2021 TG1). Jet Propulsion Laboratory. 30 October 2021.
  255. Web site: 2021 TG1. Minor Planet Center. International Astronomical Union. 30 October 2021.
  256. Web site: JPL Small-Body Database Browser: (2021 TQ4). Jet Propulsion Laboratory. 30 October 2021.
  257. Web site: 2021 TQ4. Minor Planet Center. International Astronomical Union. 30 October 2021.
  258. Web site: JPL Small-Body Database Browser: (2021 TT1). Jet Propulsion Laboratory. 30 October 2021.
  259. Web site: 2021 TT1. Minor Planet Center. International Astronomical Union. 30 October 2021.
  260. Web site: JPL Small-Body Database Browser: (2021 TK11). Jet Propulsion Laboratory. 30 October 2021.
  261. Web site: 2021 TK11. Minor Planet Center. International Astronomical Union. 30 October 2021.
  262. Web site: JPL Small-Body Database Browser: (2021 TT13). Jet Propulsion Laboratory. 30 October 2021.
  263. Web site: 2021 TT13. Minor Planet Center. International Astronomical Union. 30 October 2021.
  264. Web site: JPL Small-Body Database Browser: (2021 TH15). Jet Propulsion Laboratory. 30 October 2021.
  265. Web site: 2021 TH15. Minor Planet Center. International Astronomical Union. 30 October 2021.
  266. Web site: JPL Small-Body Database Browser: (2021 TE13). Jet Propulsion Laboratory. 30 October 2021.
  267. Web site: 2021 TE13. Minor Planet Center. International Astronomical Union. 30 October 2021.
  268. Web site: JPL Small-Body Database Browser: (2021 TM14). Jet Propulsion Laboratory. 30 October 2021.
  269. Web site: 2021 TM14. Minor Planet Center. International Astronomical Union. 30 October 2021.
  270. Web site: JPL Small-Body Database Browser: (2021 UL). Jet Propulsion Laboratory. 30 October 2021.
  271. Web site: 2021 UL. Minor Planet Center. International Astronomical Union. 30 October 2021.
  272. Web site: JPL Small-Body Database Browser: (2021 TJ15). Jet Propulsion Laboratory. 30 October 2021.
  273. Web site: 2021 TJ15. Minor Planet Center. International Astronomical Union. 30 October 2021.
  274. Web site: JPL Small-Body Database Browser: (2021 TG14). Jet Propulsion Laboratory. 30 October 2021.
  275. Web site: 2021 TG14. Minor Planet Center. International Astronomical Union. 30 October 2021.
  276. Web site: JPL Small-Body Database Browser: (2021 UT). Jet Propulsion Laboratory. 30 October 2021.
  277. Web site: 2021 UT. Minor Planet Center. International Astronomical Union. 30 October 2021.
  278. Web site: JPL Small-Body Database Browser: (2021 UO1). Jet Propulsion Laboratory. 30 October 2021.
  279. Web site: 2021 UO1. Minor Planet Center. International Astronomical Union. 30 October 2021.
  280. Web site: JPL Small-Body Database Browser: (2021 UA1). Jet Propulsion Laboratory. 30 October 2021.
  281. Web site: 2021 UA1. Minor Planet Center. International Astronomical Union. 30 October 2021.
  282. Web site: JPL Small-Body Database Browser: (2021 UA7). Jet Propulsion Laboratory. 11 November 2021.
  283. Web site: 2021 UA7. Minor Planet Center. International Astronomical Union. 11 November 2021.
  284. Web site: JPL Small-Body Database Browser: (2021 UH1). Jet Propulsion Laboratory. 30 October 2021.
  285. Web site: 2021 UH1. Minor Planet Center. International Astronomical Union. 30 October 2021.
  286. Web site: JPL Small-Body Database Browser: (2021 UV5). Jet Propulsion Laboratory. 11 November 2021.
  287. Web site: 2021 UV5. Minor Planet Center. International Astronomical Union. 11 November 2021.
  288. Web site: JPL Small-Body Database Browser: (2021 UT5). Jet Propulsion Laboratory. 11 November 2021.
  289. Web site: 2021 UT5. Minor Planet Center. International Astronomical Union. 11 November 2021.
  290. Web site: JPL Small-Body Database Browser: (2021 UF12). Jet Propulsion Laboratory. 11 November 2021.
  291. Web site: 2021 UF12. Minor Planet Center. International Astronomical Union. 11 November 2021.
  292. Web site: JPL Small-Body Database Browser: (2021 UW1). Jet Propulsion Laboratory. 11 November 2021.
  293. Web site: 2021 UW1. Minor Planet Center. International Astronomical Union. 11 November 2021.
  294. Web site: JPL Small-Body Database Browser: (2021 UJ6). Jet Propulsion Laboratory. 11 November 2021.
  295. Web site: 2021 UJ6. Minor Planet Center. International Astronomical Union. 11 November 2021.
  296. Web site: JPL Small-Body Database Browser: (2021 VH). Jet Propulsion Laboratory. 11 November 2021.
  297. Web site: 2021 VH. Minor Planet Center. International Astronomical Union. 11 November 2021.
  298. Web site: JPL Small-Body Database Browser: (2021 UO7). Jet Propulsion Laboratory. 11 November 2021.
  299. Web site: 2021 UO7. Minor Planet Center. International Astronomical Union. 11 November 2021.
  300. Web site: JPL Small-Body Database Browser: (2021 VS11). Jet Propulsion Laboratory. 3 January 2022.
  301. Web site: 2021 VS11. Minor Planet Center. International Astronomical Union. 3 January 2022.
  302. Web site: JPL Small-Body Database Browser: (2021 VK3). Jet Propulsion Laboratory. 11 November 2021.
  303. Web site: 2021 VK3. Minor Planet Center. International Astronomical Union. 11 November 2021.
  304. Web site: JPL Small-Body Database Browser: (2021 VL3). Jet Propulsion Laboratory. 11 November 2021.
  305. Web site: 2021 VL3. Minor Planet Center. International Astronomical Union. 11 November 2021.
  306. Web site: JPL Small-Body Database Browser: (2021 VN3). Jet Propulsion Laboratory. 11 November 2021.
  307. Web site: 2021 VN3. Minor Planet Center. International Astronomical Union. 11 November 2021.
  308. Web site: JPL Small-Body Database Browser: (2021 VM3). Jet Propulsion Laboratory. 11 November 2021.
  309. Web site: 2021 VM3. Minor Planet Center. International Astronomical Union. 11 November 2021.
  310. Web site: JPL Small-Body Database Browser: (2021 VD8). Jet Propulsion Laboratory. 11 November 2021.
  311. Web site: 2021 VD8. Minor Planet Center. International Astronomical Union. 11 November 2021.
  312. Web site: JPL Small-Body Database Browser: (2021 VP11). Jet Propulsion Laboratory. 3 January 2022.
  313. Web site: 2021 VP11. Minor Planet Center. International Astronomical Union. 3 January 2022.
  314. Web site: JPL Small-Body Database Browser: (2021 VU4). Jet Propulsion Laboratory. 11 November 2021.
  315. Web site: 2021 VU4. Minor Planet Center. International Astronomical Union. 11 November 2021.
  316. Web site: JPL Small-Body Database Browser: (2021 VY7). Jet Propulsion Laboratory. 11 November 2021.
  317. Web site: 2021 VY7. Minor Planet Center. International Astronomical Union. 11 November 2021.
  318. Web site: JPL Small-Body Database Browser: (2021 VC7). Jet Propulsion Laboratory. 11 November 2021.
  319. Web site: 2021 VC7. Minor Planet Center. International Astronomical Union. 11 November 2021.
  320. Web site: JPL Small-Body Database Browser: (2021 WP). Jet Propulsion Laboratory. 3 January 2022.
  321. Web site: 2021 WP. Minor Planet Center. International Astronomical Union. 3 January 2022.
  322. Web site: JPL Small-Body Database Browser: (2021 WA1). Jet Propulsion Laboratory. 3 January 2022.
  323. Web site: 2021 WA1. Minor Planet Center. International Astronomical Union. 3 January 2022.
  324. Web site: JPL Small-Body Database Browser: (2021 WC1). Jet Propulsion Laboratory. 3 January 2022.
  325. Web site: 2021 WC1. Minor Planet Center. International Astronomical Union. 3 January 2022.
  326. Web site: JPL Small-Body Database Browser: (2021 XV). Jet Propulsion Laboratory. 3 January 2022.
  327. Web site: 2021 XV. Minor Planet Center. International Astronomical Union. 3 January 2022.
  328. Web site: JPL Small-Body Database Browser: (2021 WF3). Jet Propulsion Laboratory. 3 January 2022.
  329. Web site: 2021 WF3. Minor Planet Center. International Astronomical Union. 3 January 2022.
  330. Web site: JPL Small-Body Database Browser: (2021 XL). Jet Propulsion Laboratory. 3 January 2022.
  331. Web site: 2021 XL. Minor Planet Center. International Astronomical Union. 3 January 2022.
  332. Web site: JPL Small-Body Database Browser: (2021 XF1). Jet Propulsion Laboratory. 3 January 2022.
  333. Web site: 2021 XF1. Minor Planet Center. International Astronomical Union. 3 January 2022.
  334. Web site: JPL Small-Body Database Browser: (2021 XC2). Jet Propulsion Laboratory. 3 January 2022.
  335. Web site: 2021 XC2. Minor Planet Center. International Astronomical Union. 3 January 2022.
  336. Web site: JPL Small-Body Database Browser: (2021 XZ5). Jet Propulsion Laboratory. 3 January 2022.
  337. Web site: 2021 XZ5. Minor Planet Center. International Astronomical Union. 3 January 2022.
  338. Web site: JPL Small-Body Database Browser: (2021 XU5). Jet Propulsion Laboratory. 3 January 2022.
  339. Web site: 2021 XU5. Minor Planet Center. International Astronomical Union. 3 January 2022.
  340. Web site: JPL Small-Body Database Browser: (2021 XV4). Jet Propulsion Laboratory. 3 January 2022.
  341. Web site: 2021 XV4. Minor Planet Center. International Astronomical Union. 3 January 2022.
  342. Web site: JPL Small-Body Database Browser: (2021 XX4). Jet Propulsion Laboratory. 3 January 2022.
  343. Web site: 2021 XX4. Minor Planet Center. International Astronomical Union. 3 January 2022.
  344. Web site: JPL Small-Body Database Browser: (2021 XC6). Jet Propulsion Laboratory. 3 January 2022.
  345. Web site: 2021 XC6. Minor Planet Center. International Astronomical Union. 3 January 2022.
  346. [Absolute magnitude#Solar System bodies (H)|Absolute magnitude]
  347. Web site: JPL Small-Body Database Browser: (2018 BA3). Jet Propulsion Laboratory. 30 October 2021.
  348. Web site: 2018 BA3. Minor Planet Center. International Astronomical Union. 30 October 2021.
  349. Web site: Goldstone Radar Observations Planning: 2021 LD1. Lance A. M.. Benner. Asteroid Radar Research. Jet Propulsion Laboratory. 23 July 2021.
  350. [Observation arc|Short arc]
  351. For comparison as closest Venus approach is 2022-Jan-08 at 103 LD. (Earth will be at perihelion on 2022-Jan-04.)

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "List of asteroid close approaches to Earth in 2021".

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