JCSAT-11
| Mission type | SKY Perfect JSAT Group |
|---|---|
| COSPAR ID | 2007-F03[1] |
| Spacecraft properties | |
| Spacecraft | JCSAT-11 |
Lockheed Martin | |
| Launch mass | 4,007 kg (8,834 lb) |
| Dimensions | 27 m × 9 m (89 ft × 30 ft) with solar panels and antennas deployed. |
| Start of mission | |
| Launch date | 22:43:10, September 5, 2007 (UTC) |
| Rocket | Briz-M |
| Launch site | Baikonur Site 200/39 |
| Contractor | ILS |
| End of mission | |
| Destroyed | Launch failure |
| Transponders | |
| Band | 18 × 27 Mhz and 12 × 36 MHz Ku band 12 × 36 MHz C band |
| Bandwidth | 1,350 MHz |
| TWTA power | Ku band 127 W C band 48 W |
JCSAT-11, was a
Lockheed Martin on the A2100 platform. The satellite was designated to be used as an on-orbit, but was lost on launch failure.[2]
Satellite description
The spacecraft was designed and manufactured by
LAE for orbit raising.[2] Its solar panels span 27 m (89 ft) when fully deployed and, with its antennas in fully extended configuration it is 9 m (30 ft) wide.[3]
Its payload is composed of eighteen 27 MHz and twelve 36 MHz
History
On October 3, 2005, JSAT ordered an
Lockheed Martin, JCSAT-11. It would be an almost copy of JCSAT-3A, with a C band and Ku band payload. It was expected to be launched in 2007 to act as a backup for the whole JSAT fleet.[5]
The almost 19-year streak of successful JCSAT launches was ended when a
Briz-M failed to orbit JCSAT-11 on September 5, 2007. A damaged pyro firing cable on the interstage truss prevented the second stage from controlling its direction, and the rocket and its payload crashed into the Kazakhstan steppes.[6] Being lucky in misfortune, JCSAT-11 was simply an on-orbit backup and thus it had no operational impact on the fleet.[2]
The same day of the launch failure, JSAT placed an order with Lockheed for an identical replacement,
JCSAT-12, for launch in 2009.[2] On September 19, 2007, they closed a deal with Arianespace for a launch slot with an Ariane 5 for its launch.[7]
References
- ^ McDowell, Jonathan. "Proton". Retrieved 2016-08-10.
- ^ a b c d e Krebs, Gunter Dirk (2016-04-21). "JCSat 10, 11, 12 (JCSat 3A, RA)". Gunter's Space Page. Retrieved 2016-07-20.
- ^ SKY Perfect JSAT Group. Archived from the originalon August 18, 2016. Retrieved August 9, 2016.
- SKY Perfect JSAT Group. 2012-08-03. Retrieved 2016-08-02.
- Lockheed Martin Space Systems. October 3, 2005. Retrieved 2016-08-05.
- ^ Zak, Anatoly (September 12, 2007). "Proton/JCSAT-11 launch failure". Russian Space Web. Retrieved 2016-08-05.
- ^ "Arianespace to Launch Japanese Satellite JCSAT-12". Defense-aerospace.com. Arianespace. September 19, 2007. Archived from the original on 2021-11-21. Retrieved 2016-08-05.
