The launch of the carrier rocket heavy class “proton-M” which should put into orbit the American communication satellite Echostar 21, can be moved to the beginning of June. About it reports “Interfax” citing a source at the cosmodrome Baikonur.
“It is clear that due to unresolved technical problems launches to resume in late may fail, and the launch of “Proton” with the satellite EchoStar 21 is shifted at least at the beginning of June,” — said the Agency interlocutor.
He said that this may shift the whole schedule of launches of “Proton” for the year. In particular, it is planned for October, the launch of manned spacecraft “Soyuz MS-07” may be delayed for three months, until 27 December 2017.
In early April, the Director General State space scientific production center (Khrunichev) Khrunichev (engaged in the development of “Proton” is in the “Roskosmos”) Andrew Kalinowski in an interview with “Kommersant” said that the first launch of the carrier rocket after the recall of engines to be held on may 29. The Agency has scheduled the launch of the communications satellite Echostar 21, which was to be held in late 2016, but the technical indicators (was discovered abnormalities in the engines) was cancelled.
Launches of carrier rockets “proton” was suspended in June 2016 after a bad start with the satellite Intelsat 31. Then, when you run any deviation in the work of the media, including there was a premature shutdown of the engine due to the fact that the second stage worked less than it should be. However, the spacecraft was successfully launched into orbit.
At the end of January 2017, it became known that “Rosatom” has decided to withdraw the second and third stage of “Proton” Voronezh mechanical plant (VMZ) due to technological problems that were identified during testing of one of the liquid engines of the second stage of the launch vehicle. After that, all the enterprises of the space industry began a total quality control of products.