Ekspress AM-4

Proton-M lifted off successfully, but its Briz-M upper stage suffered mis-oriented burns and stranded the $265 million Ekspress-AM4 communications satellite in an unusable orbit; the satellite was later deorbited in March 2012.

Outcome

Partial

Payload to orbit

6.7 T

Flight

21st

of 33 Proton-M Briz-M Enhanced flights

Date and time

17 August 2011, 21:25 UTC

Rocket

Proton-M Briz-M Enhanced

Builder

Khrunichev

Launch site

200/39 (200L), Baikonur Cosmodrome, Republic of Kazakhstan

Payload

Unknown

International designator

2011-045

Launches in 2011

46th of 84

See it in orbit

Space Atlas shows the satellites and rocket stages from this launch in 3D.

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