On 5/15/2014 7:28 PM, Allen Thomson via Seesat-l wrote: > >>> There was an emergency engines shutdown on the 540th second >>> following the launch, > > On a standard Proton launch, that would have been late in the third > stage burn, not too far before orbital velocity was achieved. On most (all?) 4 stage Proton launches these days, 3rd stage burnout leaves the 4th stage and payload in a suborbital trajectory, and the first burn of the 4th (usually a Briz variant these days) immediately following places the stack in a low earth orbit, from where later burns of the fourth stage put the payload into its desired orbit. _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-lReceived on Thu May 15 2014 - 18:45:55 UTC
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