Re: Launch failure

From: Chris Jones via Seesat-l <seesat-l_at_satobs.org>
Date: Thu, 15 May 2014 19:44:54 -0400
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-l
Received on Thu May 15 2014 - 18:45:55 UTC

This archive was generated by hypermail 2.2.0 : Thu May 15 2014 - 23:45:56 UTC