| Name of Satellite, Alternate Names | COMS-1 (Communication, Ocean and Meteorological Satellite; Cheollian) |
| Country of Operator/Owner | South Korea |
| Operator/Owner | Korea Aerospace Research Institute (KARI) |
| Users | Government |
| Purpose | Earth Observation/Meteorology/Communications |
| Class of Orbit | GEO |
| Type of Orbit | |
| Longitude of GEO (degrees) | 128 |
| Perigee (km) | 35783 |
| Apogee (km) | 35791 |
| Eccentricity | 9.48834120074958E-05 |
| Inclination (degrees) | 0.01 |
| Period (minutes) | 1436.1 |
| Launch Mass (kg.) | 2460 |
| Dry Mass (kg.) | |
| Power (watts) | |
| Date of Launch | 26-06-2010 |
| Expected Lifetime | |
| Contractor | EADS Astrium/Electronics and Telecommunications Research Institute (ETRI) |
| Country of Contractor | South Korea |
| Launch Site | Guiana Space Center |
| Launch Vehicle | Ariane 5 ECA |
| COSPAR Number | 2010-032A |
| NORAD Number | 36744 |
| Comments | Multi-mission satellite with three payloads: one for meteorology, one for ocena observation and one for communications. |