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Luch 5A, 5V

Luch-5A [ISS Reshetnev]

The Luch-5 will be the russian follow-on relay satellites, which replace the Luch (Altair) and Luch-2 (Gelios) satellites. Two satellites named Luch 5A and Luch 5B were procured for launches in 2010 and 2011. The smaller satellites are based on the Ekspress-1000 bus and were be launched with a co-passenger on Proton-M Briz-M boosters.

S- and Ku-band data relay channels of each satellite will be linked with receive/transmit points via satellite communications links.

Each data relay satellite is capable of orienting its high-precision antennas towards low-flying space objects so as to “catch” and “track” them along their trajectories. Moreover, each of the two user antennas is capable of tracking its “own” low-flying space object. One antenna will operate in the Ku-band, the other – in the S-band, with the Ku-band channel capacity at 150 Mbit/s and the S-band channel capacity at up to 5 Mbit/s.

Luch-5V was ordered to replace the larger Luch 4 satellite, which has been postponed to 2015 and reduced to an experimental satellite.

The Luch-5A and -5V spacecrafts are also intended to receive COSPAS/SARSAT signals in the P-band and relay them in the L-band to the ground data receiving points. In addition, both will allow collection and transmission of the Planet-S System hydrometeorological data.

Nation: Russia
Type / Application: Communications / Relay
Operator:
Contractors: ISS Reshetnev (ex NPO Prikladnoi Mekhaniki, NPO PM)
Equipment: ?
Configuration: Ekspress-1000A (3-Axis stabilized, 2 solar arrays)
Propulsion: ?
Power: 2 deployable solar arrays, batteries
Lifetime: 10 years
Mass: 1148 kg
Orbit: GEO
Satellite COSPAR Date LS Launch Vehicle Remarks
Luch 5A 2011-074B 11.12.2011 TB LC-81/24 Proton-M Briz-M (Ph.3) with AMOS 5
Luch 5V 2014-023A 28.04.2014 TB LC-81/24 Proton-M Briz-M (Ph.3) with Kazsat 3
Further Luch missions: