Ekspress-AM11

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]

Ekspress-AM11
NamesЭкспресс-АМ11
Ekspress-AM11
Express-AM11
Mission typeCommunications
OperatorRussian Satellite Communications Company (RSCC)
COSPAR ID2004-015A
SATCAT no.28234
Websiteeng.rscc.ru
Mission duration12 years (planned)
1.75 years (achieve)
Spacecraft properties
SpacecraftEkspress-AM11
Spacecraft typeKAUR
BusMSS-2500-GSO[1]
ManufacturerNPO PM (bus)
Alcatel Space (payload)
Launch mass2,542 kg (5,604 lb)
Dry mass590 kg (1,300 lb)
Power6 kW
Start of mission
Launch date26 April 2004, 20:37:00 UTC[2]
RocketProton-K / DM-2M
Launch siteBaikonur, Site 200/39
ContractorKhrunichev State Research and Production Space Center
Entered service1 July 2004 [3]
End of mission
DisposalGraveyard orbit
DeactivatedApril 2006
Orbital parameters
Reference systemGeocentric orbit[4]
RegimeGeostationary orbit
Longitude96.5° East (2004–2006)
Transponders
Band30 transponders:
26 C-band
4 Ku-band
Coverage areaRussia, Southeast Asia, Australia
 

Satellite description

The satellite has a total of 30 transponders, 26 C-band and 4 Ku-band, for the domestic coverage of the Russian Federation.[5]

Launch

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.

Mission

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]

References
  1. "Ekspress-AM 11". Gunter's Space Page. 11 December 2017. Retrieved 22 April 2021.
  2. "Launch Log". Jonathan's Space Report. 14 March 2021. Retrieved 22 April 2021.
  3. "The project for renovation of RSCC satellite constellation by 2005". RSCC. 2005. Retrieved 23 April 2021.
  4. "EXPRESS-AM11". N2YO.com. Retrieved 22 April 2021.
  5. "Interview with Yuri Izmaylov, RSCC Acting Director General". RSCC. 4 July 2005. Retrieved 22 April 2021.
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