The multifunctional space Relay System (MCSR) "Luch" (the operating organization is JSC Gonets Satellite System, part of the Roscosmos State Corporation), successfully completed the target tasks for data relay during the launch and flight of the Progress MS-27 transport cargo ship (TGC).
On May 30, at 12:42 Moscow time, a successful launch of the Soyuz-2.1a launch vehicle from the Progress MS-27 took place from the 31st site of the Baikonur cosmodrome. On June 01, at 14:43 Moscow time, the cargo ship docked to the Poisk module of the Russian segment of the International Space Station (ISS RS). The launch of the spacecraft into a predetermined orbit, its separation from the third stage of the rocket, the deployment of antennas and solar panels, as well as its flight and docking with the ISS took place in normal mode.
During the launch and flight of the Progress MS-27 spacecraft, the relay channels of the MKSR Luch were activated. After the cargo ship left the radio visibility zone of ground facilities, the transmission of telemetry data to the Mission Control Center (MCC) of the ISS RS, as well as the transmission of control commands on board the Progress MS-27 TGC, was provided using the Louch system. In the course of further work, the Luch system relayed telemetry data from the Progress MS-27 spacecraft during its docking with the ISS RS. To organize the retransmission channels, 2 spacecraft of the system were involved: Luch-5A and Luch-5B, as well as means of a ground-based relay support complex. A total of 17 sessions were conducted.
Progress MS-27 delivered more than 2,500 kg of cargo to the ISS, including equipment and equipment of the station's systems, clothing, food, medical and sanitary products for the crew, more than 750 kg of fuel, drinking water and nitrogen.
Photo: Roscosmos State Corporation
