New Express satellites readying for commissioning
The Express-80 and Express-103 satellites, designed and built by ISS-Reshetnev Company, have reached their designed orbital positions.
The satellites have finally arrived at their positions in the geostationary orbit. They were launched on July 31, 2020 and once they separated from the rocket’s upper stage they started a long journey to slots 80 and 103 degrees East using their own electrical propulsion engines.
The use of electric propulsion enabled ISS-Reshetnev Company to launch two medium-size satellites to the geostationary orbit by a single rocket despite mass limitations imposed by the capabilities of a Proton-M/Breeze-M launch vehicle.
ISS-Reshetnev specialists together with the representatives of the customer (Russian Satellite Communications Company) and payload provider (Europe-based Thales Alenia Space) are currently testing the payload of Express-80. Then they will conduct in-orbit payload testing of Express-103. Following the results of these tests, both satellites will be commissioned into service.
The new satellites are based on ISS-Reshetnev’s Express-1000H platform. Their payload power is 6300 W.
The Express-80 satellite has a mass of 2110 kg, and its payload includes 38 transponders: 16 of them operating in the C-band, 20 in Ku-band and 2 in L-band.
The Express-103 satellite has a mass of 2280 kg, and its payload includes 37 transponders: 16 of them operating in the C-band, 20 in Ku-band and 1 in L-band.
Both satellites are designed to work as part of the Russian orbital constellation and to provide a wide range of telecommunications services. They have a 15-year active lifespan.