The takeoff of the Russian Proton-M launch vehicle with the U.S. communication satellite Sirius FM-6 may be put off until October at the request of the U.S. side, Interfax-AVN was told at the cosmodrome on Monday.
"There is the motion of the U.S. side on rescheduling the launch to October 25. The State Commission will handle the message on Monday," the source said.
Initially the takeoff was slated for Sunday, October 20. However, less than 24 hours before it the launch was put off for the reserve time - 10:12 p.m. Moscow time on October 21.
The launch of Sirius FM-6 should become the seventh for Proton in 2013, the 390th in its flight history and the second after the July 2 failed takeoff.
For International Launch Services Inc (ILS) which markets Proton launch services around the world (the Khrunichev Space Research and Production Center owns a controlling stake in it) this will be the sixth Proton launch in 2013 and the 83rd since the beginning of its commercial use in April 1996.
Proton LV will be used for the sixth time to carry payload of Sirius-XM company. Besides, it will be the 27th launch of a Proton with a satellite built on the SS/L platform.
Sirius FM-6 is an extra powerful radio broadcasting satellite developed by Space Systems/Loral for U.S. Sirius XM Radio that operates musical, sports, news and other radio channels in the continental part of the USA and Canada.
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