(612600) 2003 SM84 explained

Minorplanet:yes
Background:
  1. FFC2E0
Discovered:20 September 2003
Epoch:27 April 2019 (JD 2458600.5)
Uncertainty:1
Observation Arc:12.21 yr (4,459 d)
Perihelion:1.0331 AU
Semimajor:1.1254 AU
Eccentricity:0.0819
Period:1.19 yr (436 d)
Mean Motion: / day
Inclination:2.7956°
Asc Node:186.68°
Arg Peri:87.374°
Moid:0.0516 AU
(20.1022 LD)
Mean Diameter:
Abs Magnitude:22.7

is a sub-kilometer asteroid, classified as near-Earth object of the Amor group orbiting between Earth and Mars. It was first observed by the Lincoln Near-Earth Asteroid Research (LINEAR) at the Lincoln Laboratory ETS on 20 September 2003. As of 2020, this minor planet has neither been nor named.

is an Amor asteroid – a subgroup of near-Earth asteroids that approach the orbit of Earth from beyond, but do not cross it. It orbits the Sun at a distance of 1.0–1.2 AU once every 14 months (436 days; semi-major axis of 1.13 AU). Its orbit has an eccentricity of 0.08 and an inclination of 3° with respect to the ecliptic. The body's observation arc begins with its first observation by LINEAR in 2003.

The object's spectral type remains unknown. Using a magnitude-to-diameter conversion, measures 86 and 160 meters in diameter, based on an absolute magnitude of 22.7 and an assumed albedo of 0.20 (S-type) and 0.057 (C-type), respectively. was being considered by the European Space Agency as a candidate target for the Don Quijote mission to study the effects of impacting a spacecraft into an asteroid.

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