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Active satellites

Express-A Express-AM Express-AT
A4


Technical specs

Orbit
Geostationary
Battery capacity
3600 W
Life-time
7 years
Mass
2500 kg
Launch date
June 10, 2002
Station Keeping Accuracy*
±0,05° (N&S/E&W)*
Stabilisation
Three-axes
Electric power
1450 W

Antennas - fixed 1 receiving antenna 17°x17°, global 1 receiving antenna 5°x11°, zone 1 transmitting antenna 5°x11°, zone 1 transmitting antenna 15°x15°, quasi-global - steerable 1 transmitting antenna 5°x11°, zone 1 transmitting antenna 5°x5°, zone 1 transmitting antenna 3,5°x7°, zone
* - as for the Express-A4 satellite the specified station keeping accuracy is not guaranteed within the period of 7 years since the launch date

Express-А4 (145° E)

Data transmission, TV & radio-broadcasting, communications, Internet, video-conference, and others.

Express-А4 (145° E)