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As of September 2015, 3 Proton-M/Blok DM-03 have been launched, of which 2 have failed. In the 2010 failure, the rocket was too heavy to reach orbit and reentered the atmosphere during a coast phase between the end of third stage flight and the beginning of the Blok DM-03's first burn, whilst the 2013 flight failed after the rocket went out of ...
In a typical mission, a Proton-M is accompanied by a Briz-M upper stage. The Proton-M launches the orbital unit (that is: the payload, the payload adapter and the Briz-M) into a slightly suborbital trajectory. The first and second stages and the payload fairing crash into designated crash sites; the third stage crashes into the ocean.
14 May 2013 16:02:00 Proton-M/Briz-M 8K82KM/11S43 Site 200/39 Eutelsat 3D: Geosynchronous transfer Success [32] Communications, Commercial launch conducted by International Launch Services 935-40 3 June 2013 09:18:31 Proton-M/Briz-M 8K82KM/11S43 Site 200/39 SES-6: Super-synchronous transfer Success [33]
On 2 July 2013, a Proton-M/DM-03 launched from Site 81/24 carrying three GLONASS navigation satellites. Immediately after liftoff, the rocket began to pitch over, and rolled out of control. The rocket fell close to the launch pad and exploded, the extent of any damage to Site 81 or the Baikonur Cosmodrome is unclear.
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On 2 July 2013, a Proton-M launching three GLONASS navigation satellites experienced a failure reminiscent of the 1960s disasters shortly after liftoff when the booster crashed near LC-39 at Baikonour, ending a 30-year unbroken stretch without a first stage failure; all future Proton flights were suspended pending investigation. [25]
Briz-K, GRAU index 14S12, is a single-piece structure with a conical tank compartment and the engine located in a recess in the fuel tank. Briz-KM (GRAU index 14S45) is an improved version of Briz-K. [4] The Briz-K and Briz-KM were used as a third stage of the Rokot launch vehicles.
Most people enter military service “with the fundamental sense that they are good people and that they are doing this for good purposes, on the side of freedom and country and God,” said Dr. Wayne Jonas, a military physician for 24 years and president and CEO of the Samueli Institute, a non-profit health research organization.