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Ekspress-AM11 (Russian: Экспресс-АМ11, meaning Express-AM11) is a Russian communications satellite. It belongs to the Russian Satellite Communications Company (RSCC) based in Moscow, Russia.[5]
| Names | Экспресс-АМ11 Ekspress-AM11 Express-AM11 |
|---|---|
| Mission type | Communications |
| Operator | Russian Satellite Communications Company (RSCC) |
| COSPAR ID | 2004-015A |
| SATCAT no. | 28234 |
| Website | eng |
| Mission duration | 12 years (planned) 1.75 years (achieve) |
| Spacecraft properties | |
| Spacecraft | Ekspress-AM11 |
| Spacecraft type | KAUR |
| Bus | MSS-2500-GSO[1] |
| Manufacturer | NPO PM (bus) Alcatel Space (payload) |
| Launch mass | 2,542 kg (5,604 lb) |
| Dry mass | 590 kg (1,300 lb) |
| Power | 6 kW |
| Start of mission | |
| Launch date | 26 April 2004, 20:37:00 UTC[2] |
| Rocket | Proton-K / DM-2M |
| Launch site | Baikonur, Site 200/39 |
| Contractor | Khrunichev State Research and Production Space Center |
| Entered service | 1 July 2004 [3] |
| End of mission | |
| Disposal | Graveyard orbit |
| Deactivated | April 2006 |
| Orbital parameters | |
| Reference system | Geocentric orbit[4] |
| Regime | Geostationary orbit |
| Longitude | 96.5° East (2004–2006) |
| Transponders | |
| Band | 30 transponders: 26 C-band 4 Ku-band |
| Coverage area | Russia, Southeast Asia, Australia |
The satellite has a total of 30 transponders, 26 C-band and 4 Ku-band, for the domestic coverage of the Russian Federation.[5]
Ekspress-AM11 was launched by Khrunichev State Research and Production Space Center, using a Proton-K / DM-02 launch vehicle. The launch took place at 23:00:00 UTC on 28 December 2003, from Site 200/39 at Baikonur Cosmodrome, Kazakhstan.[2] Successfully deployed into geostationary transfer orbit (GTO), Ekspress-AM11 raised itself into an operational geostationary orbit using its apogee motor.
The satellite can be received in Southeast Asia], Australia and the most part of Russia. Ekspress-AM11 was hit on 28 March 2006 by either a micrometeorite or a piece of space debris, which lead to instantaneous depressurization of the thermal control system fluid circuit, followed by a sudden outburst of the heat-carrying agent. This resulted in a significant disturbing moment generation followed by the spacecraft orientation loss and rotation. After regaining control, the satellite was put into a graveyard orbit.[1]
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