JCSAT-4A
| Mission type | Communication |
|---|---|
| Operator | JSAT Corporation |
| COSPAR ID | 1999-006A |
| SATCAT no. | 25630 |
| Mission duration | 14+1⁄2 years (planned) |
| Spacecraft properties | |
| Bus | HS-601 |
| Manufacturer | Hughes |
| Launch mass | 2,900 kilograms (6,400 lb) |
| Start of mission | |
| Launch date | 16 February 1999, 01:45:26 UTC |
| Rocket | Atlas IIAS |
| Launch site | Cape Canaveral SLC-36A |
| Contractor | ILS |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Geostationary |
| Longitude | 124° East |
| Perigee altitude | 35,785 kilometres (22,236 mi)[1] |
| Apogee altitude | 35,807 kilometres (22,249 mi)[1] |
| Inclination | 0 degrees |
| Period | 24 hours |
| Transponders | |
| Band | 32 J band |
JCSAT-4A, previously designated JCSAT-6, is a Japanese geostationary communications satellite which is operated by JSAT Corporation. It is positioned in geostationary orbit at a longitude of 124° East, from where it is used to provide broadcasting and corporate network communications to Japan.[2]
JCSAT-6 was constructed by Hughes, based on the HS-601 satellite bus. It is equipped with 32 J band (IEEE Ku band) transponders, and at launch it had a mass of 2,900 kilograms (6,400 lb), with an expected operational lifespan of fourteen and a half years[3][4]
It was launched atop an Atlas IIAS carrier rocket flying from Space Launch Complex 36A at the Cape Canaveral Air Force Station. The launch occurred at 01:45:26 GMT on 16 February 1999,[5] and successfully placed JCSAT-6 into a geostationary transfer orbit. From this orbit, the satellite raised itself into a geostationary orbit using an R-4D apogee motor.[6] The final burn to complete its insertion into geosynchronous orbit occurred on 1 March 1999.[7]
See also
References
- ^ a b McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 2009-08-09.
- ^ "JCSAT-4A". Sky Perfect JSAT Corporation. Retrieved 2009-08-08.
- ^ "UCS Satellite Database". Union of Concerned Scientists. 2009-07-01. Retrieved 2009-08-08.
- ^ Krebs, Gunter. "JCSat 5, 6". Gunter's Space Page. Retrieved 2009-08-08.
- ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 2009-08-08.
- ^ Wade, Mark. "JCSAT". Encyclopedia Astronautica. Retrieved 2009-08-08.
- ^ McDowell, Jonathan. "Index". Geostationary Orbit Catalog. Jonathan's Space Page. Retrieved 2009-08-08.
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