| SES 16 / GovSat-1 | |
| Names List: | GovSat-1 |
| Mission Type: | Communications |
| Operator: | LuxGovSat |
| Cospar Id: | 2018-013A |
| Satcat: | 43178 |
| Website: | https://www.govsat.lu |
| Mission Duration: | 15 years (planned) (elapsed) |
| Spacecraft: | GovSat-1 |
| Spacecraft Bus: | GEOStar-3 |
| Manufacturer: | Orbital ATK |
| Launch Date: | 31 January 2018, UTC |
| Launch Rocket: | Falcon 9 B1032.2 |
| Launch Site: | Cape Canaveral, SLC-40 |
| Launch Contractor: | SpaceX |
| Entered Service: | April 2018 |
| Orbit Reference: | Geocentric orbit |
| Orbit Regime: | Geostationary orbit |
| Orbit Longitude: | 21° East |
| Apsis: | gee |
| Trans Band: | 68 transponders: Ka-band, X-band |
| Trans Bandwidth: | 36 MHz |
| Trans Coverage: | Europe |
| Programme: | SES constellation |
| Previous Mission: | SES-15 |
| Next Mission: | SES-17 |
SES-16 / GovSat-1 is a geostationary communications satellite designed and manufactured by Orbital ATK; LuxGovSat is a joint venture between SES and the Luxembourg government. It has a mass of and has a design life of at least 15 years.[1] The satellite was launched by SpaceX on 31 January 2018.[2]