JCSAT-5A
JCSAT-5A or N-STAR d, known as JCSAT-9 before launch, is a geostationary communications satellite operated by SKY Perfect JSAT Group (JSAT) which was designed and manufactured by Lockheed Martin on the A2100 platform.[1][2]
| Mission type | Communication |
|---|---|
| Operator | SKY Perfect JSAT Group |
| COSPAR ID | 2006-010A |
| SATCAT no. | 29045 |
| Mission duration | 12 years (planned) |
| Spacecraft properties | |
| Bus | A2100-AX |
| Manufacturer | Lockheed Martin |
| Launch mass | 4,401 kg (9,703 lb) |
| Start of mission | |
| Launch date | 23:29:59, April 12, 2006 (UTC) |
| Rocket | Zenit-3SL |
| Launch site | Odyssey |
| Contractor | Sea Launch |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Geostationary |
| Longitude | 132°East |
| Transponders | |
| Band | Ku band: 8 × 54 Mhz + 12 × 36 Mhz C band: 20 x 36 MHz S band beam |
| Bandwidth | 1,584 MHz |
| TWTA power | Ku band: 110 Watts C band: 45 Watts S band: 130 Watts |
Satellite description
The spacecraft was designed and manufactured by Lockheed Martin on the A2100AX satellite bus. It had a launch mass of 4,401 kg (9,703 lb) and a 12-year design life. It would provide communications services throughout Japan and Asia and for NTT DoCoMo .[1] As most satellites based on the A2100 platform, it uses a 460 N (100 lbf) LEROS-1C LAE for orbit raising.[1] Its solar panels span 26.9 m (88 ft) when fully deployed and, with its antennas in fully extended configuration it is 14.3 m (47 ft) wide.[3][4]
Its payload is composed of eight 54 MHz and twelve 36 MHz Ku band transponders, twenty 36 MHz C band transponders and one S band beam. The Ku band transponders have a TWTA output power of 110 Watts, the C band of 45 Watts and the S beam of 130Watts.[3][4]
History
On April 30, 2003 JSAT awarded an order for JCSAT-9 to Lockheed Martin and its A2100AXS platform. And in May 2003 JSAT leased some transponders to NTT DoCoMo to be used as N-STAR d for its WIDESTAR II service. An hybrid satellite with 20 C band, 20 Ku band, and 1 S-band transponders, it was expected for launch in 2005 for the 132° East slot.[5][1]
On April 12, 2006 at 23:29:59 GMT a Zenit-3SL launching from the offshore Ocean Odyssey launch platform successfully orbited JCSAT-9. Separation from the launch vehicle occurred at 00:38:02 GMT.[1] JSAT had leased some transponders to NTT DoCoMo to be used as N-STAR d.[6] Once in its 132°East orbital position, it was renamed as JCSAT-5A and N-STAR d.[3]
See also
References
- Krebs, Gunter Dirk (2016-04-21). "JCSat 9 (JCSAT 5A, N-Star d)". Gunter's Space Page. Retrieved 2016-07-20.
- "JCSat 5A (JCSat 9, N-Star D)". Satbeams. Retrieved 26 July 2016.
- "JCSAT-5A". SKY Perfect JSAT Group. Retrieved August 9, 2016.
- "Who we are" (PDF). SSKY Perfect JSAT Group. 2012-08-03. Retrieved 2016-08-02.
- "JSAT Corporation Awards Lockheed Martin Commercial Space Systems Contract for Powerful A2100 Satellite". Icaa.eu. Lockheed Martin Space Systems. April 30, 2003. Retrieved 2016-08-05.
- "JSAT to Lease JCSAT-9 Satellite to NTT DoCoMo". NTT DoCoMo. May 23, 2003. Retrieved 2016-08-02.