JCSAT-1
| Mission type | Communications |
|---|---|
| Operator | JSAT Corporation |
| COSPAR ID | 1989-020A |
| SATCAT no. | 19874 |
| Mission duration | 8 years (planned) |
| Spacecraft properties | |
| Spacecraft | JCSAT-1 |
| Spacecraft type | JCSAT |
| Bus | HS-393 |
| Manufacturer | Hughes |
| Launch mass | 2,280 kg (5,030 lb) |
| BOL mass | 1,364 kg (3,007 lb) |
| Dimensions | 3.7 m × 10 m × 2.3 m (12.1 ft × 32.8 ft × 7.5 ft) with solar panels and antennas deployed. |
| Power | 2.350 kW |
| Start of mission | |
| Launch date | 6 March 1989, 23:29:00 UTC |
| Rocket | Ariane 44LP |
| Launch site | Centre Spatial Guyanais, ELA-2 |
| Contractor | Arianespace |
| End of mission | |
| Disposal | Graveyard orbit |
| Deactivated | 1998 |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Geostationary orbit |
| Longitude | 150° East |
| Transponders | |
| Band | 32 Ku-band × 27 MHz |
| Bandwidth | 864 MHz |
| Coverage area | Japan |
| TWTA power | 20 watts |
JCSAT-1 was a geostationary communications satellite designed and manufactured by Hughes (now Boeing) on the HS-393 satellite bus. It was originally ordered by Japan Communications Satellite Company (JCSAT), which later merged into the JSAT Corporation. It had a Ku-band payload and operated on the 150° East longitude until it was replaced by JCSAT-1B.