Neha Patil

Luch 5B

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Mission type  Communications
COSPAR ID  2012-061A
Mission duration  10 years
Launch mass  1,148 kg
Launch date  2 November 2012
Bus  Ekspress
Operator  Roskosmos
SATCAT no.  38977
Rocket  Proton-M/Briz-M
Launch mass  1,148 kg
Launch site  Baikonur Cosmodrome
Luch 5B httpsuploadwikimediaorgwikipediacommonsthu
Manufacturer  Information Satellite Systems Reshetnev
Similar  Luch 5A, Luch, Yamal‑300K, EchoStar XVI, Skynet 5D

Luch 5B (Russian: Луч-5Б meaning ray and sometimes transliterated as Loutch-5B) is a Russian Luch relay satellite which will transmit data from the Russian Orbital Segment of the International Space Station, and from other satellites in low Earth orbit. It will be in geosynchronous orbit.

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Luch

Luch 5B is one of a planned three Luch relay satellites. Luch 5A was launched on 11 December 2011 and Luch 5V is expected in 2013 or 2014. They are dual purpose satellites with both military and civil uses, and are similar to those in the US Tracking and Data Relay Satellite System.

Luch 5B was built by JSC Information Satellite Systems using the Ekspress-1000A bus. It has 4 S and Ku band channels with repeaters manufactured by Thales Alenia Space and other equipment manufactured by Sumitomo. The Ku band antenna operates at up to 150 Mbit/s and the S band antenna at up to 5 Mbit/s. The satellite also has a "laser-radio channel".

The satellite is designed to relay data from the ISS, satellites in low earth orbit and rocket launch vehicles.

Luch 5B is located at 16° W.

Launch

Luch 5B was launched on 2 November 2012 with satellite Yamal 300K. It was launched from Baikonur Cosmodrome launchpad 81/24 by a Proton-M rocket with a Briz-M upper stage. It was launched at 21:04 UTC and after four burns of the Briz-M upper stage it was placed into geosynchronous transfer orbit at 06:33 UTC on 3 November.

The launch was delayed from 30 August 2012 due to the failure of the launch of Telkom-3 and Ekspress MD2 in August 2012.

References

Luch 5B Wikipedia


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