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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]
This was the 326th launch of a Proton, the 16th Proton-M/Briz-M launch, and the 41st Proton launch to be conducted by ILS. [13] It features more efficient first stage engines, updated avionics, lighter fuel tanks and more powerful vernier engines on the Briz-M upper stage, and mass reduction throughout the rocket, including thinner fuel tank ...
Navigation, First stage control failure, rocket crashed near launch pad. Accident caused by angular velocity sensors of the rocket's control system wrongly installed backwards. 935-39 29 September 2013 21:38:10 Proton-M/Briz-M 8K82KM/11S43 Site 200/39 Astra 2E: Geosynchronous transfer Success [34]
As of 13 March 2023, rockets of the UR-500 / Proton family have accumulated 430 launches since 1965, 382 of which were successful, yielding an 88.8% success rate. For launches in a specific decade, see: List of Proton launches (1965–1969) List of Proton launches (1970–1979) List of Proton launches (1980–1989)
Following the failure, the Blok DM-03 was grounded for further tests, with a Proton-M/Briz-M and several smaller Soyuz-2 rockets being used for GLONASS launches over the next 30 months. [ 5 ] The July 2013 flight, which marked the Blok DM-03's return to flight was another GLONASS launch, also conducted from Site 81/24, with liftoff occurring on ...
CORRECTING and REPLACING ILS Proton Successfully Launches Satmex 8 Satellite for Satmex BAIKONUR COSMODROME, Kazakhstan--(BUSINESS WIRE)-- In the boilerplate for Satmex, please note removal of the ...
Proton-K/DM-2 8K82K/11S861 345-02 Site 200/39 Failure Ekran-M #14L: Geosynchronous Communications Third stage lost thrust due to a cleaning rag accidentally left inside the propellant feed system, preventing the flow of oxidizer to the engine. Automatic shutdown T+349 seconds. 3 November 1990 14:39:59 Proton-K/DM-2 8K82K/11S861 370-01 Site 81/23
First flight of an enhanced Proton-M. 5 September 2007 22:43:10 Proton-M/Briz-M 8K82KM/11S43 535-22 Site 200/39: Failure [2] JCSAT-11: Geosynchronous transfer (intended) Communications Commercial launch conducted by International Launch Services. The first and second stages of the rocket failed to separate due to a damaged pyrotechnic firing cable.