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Proton-M first launch in 2015

A Proton-M/Breeze-M launch has been conducted today at Baikonur Cosmodrome to orbit Britain’s Inmarsat-5F2 telecommunications satellite. Launched at 15:31msk, the satellite is to be injected to a supersynchronous geo-transfer orbit with a 65,000km apogee. This year’s first launch is the 402nd in Proton’s history.

In the course of a nominal launch, the orbital unit separated from the launch vehicle (LV) at the designated time, and continued its mission. Subsequently, the spacecraft injection to the target orbit is performed based on the Breeze-M upper stage main engine using a five-burn scenario. As per the mission plan, the spacecraft is scheduled to separate from the upper stage at 15h 31min from the liftoff.

The contract for using a Proton-M to orbit the Inmarsat 5F-2 was concluded by Inmarsat PLC, a UK-based global mobile communications provider, and International Launch Services, Inc. (ILS). ILS is controlled by the Khrunichev  Space Center. KhSC is the designer and manufacturer of the Proton launch vehicle and Breeze-M upper stage booster, and also of the Angara prospective launch complex.

The second of the three Inmarsat’s fifth-generation (I-5) satellites, Inmarsat 5F2 SC was manufactured by Boeing Satellite Systems, U.S.A. The first satellite of the I-5 series was successfully launched aboard the Proton launch vehicle in December, 2013.

02.02.2015

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