Satellite footprints  also called coverage is the Zone where the satellite's signals can be received. 

Express AM 22

A new broadcasting and communications Express-AM22 satellite is produced by NPO PM named after Academician M. Reshetnev jointly with Alcatel Space under the order of Russian Satellite Communications Company. The satellite is produced in the context of the Program for Renovation of National Constellation to be executed over a time period of 2002–2005. The satellite is designed to provide a package of communications services (digital TV, telephony, videoconferencing, data transmission, the Internet access) and to deploy satellite networks by applying VSAT technology. The Express-AM22 spacecraft is equipped with up-to-date antenna systems, that provide high-quality communications and uniform coverage in Ku- band. EIRP (Effective Isotropic Radiated Power)

SATELLITE PARAMETERS

Mission TV & radio broadcasting, telephony, data transmission, Internet access, videoconferencing and   other services
Orbit Geostationary / 53° E
Station Keeping Accuracy ±0,05° (N&S / E&W)
Operational life-time 12 years
Stabilisation Three Axes
Payload electric power 4200 W
Mass of payload 590 kg
Mass of satellite 2600 kg
Power supply 6000 W
Transponders  
parameters ku-band
Number of transponders 4
Transponders bandwidth
at –1dB, MHz
54
Transponders output power, W 103,5
   
 
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