Soyuz STB/Fregat | METOP-SG B1
Launch is NO-GO
L - -- : -- : -- : --
Jan. 1, 2021, midnight
Launch Window
Jan. 1, 2021, midnight - Dec. 31, 2023, midnight
Jan. 1, 2021, midnight - Dec. 31, 2023, midnight
The 2.1b version adds an upgraded engine (RD-0124) with improved performance to the second stage. First launch took place from Plesetsk Cosmodrome Site 43 on 26 July 2008 with a classified military payload. The 2.1b/ST version is sometimes called Soyuz ST-B.
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