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#60
by
Chris Bergin
on 17 Aug, 2011 22:02
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#61
by
Lewis007
on 18 Aug, 2011 06:53
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#62
by
astropl
on 18 Aug, 2011 06:54
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Bad news... From fourth ignition of Breeze no contact with stage and satellite.
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#63
by
Chris Bergin
on 18 Aug, 2011 07:43
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Bad news... From fourth ignition of Breeze no contact with stage and satellite.
Uh oh!
Do we have a link?
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#64
by
astropl
on 18 Aug, 2011 07:46
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#65
by
Galactic Penguin SST
on 18 Aug, 2011 07:51
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Bad news... From fourth ignition of Breeze no contact with stage and satellite.
Uh oh!
Do we have a link?
Novosti Kosmonavtiki forum.
NewsRu.com
And on RIA Novosti too...
LinkApparently contact was lost with the Breeze-M stage and the spacecraft before 0400 UTC, between the fourth and the fifth burns of the Breeze-M. If confirmed, it would be a major loss of the Russian communication network.
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#66
by
Chris Bergin
on 18 Aug, 2011 07:52
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Thanks Astropl.
Reads that the Briz-M lost all power at fourth stage ignition. No hope for the satellite, as no power = no S/C Sep, regardless of the orbit etc
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#67
by
Chris Bergin
on 18 Aug, 2011 08:07
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#68
by
DavisSTS
on 18 Aug, 2011 09:06
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That's unfortunate.
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#69
by
robertross
on 18 Aug, 2011 11:21
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That's unfortunate.
Agreed.
Thanks for the coverage though, notably Rui.
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#70
by
Skyrocket
on 18 Aug, 2011 12:20
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Does anyone know, if the Ekspress-AM4 satellite was insured?
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#71
by
astropl
on 18 Aug, 2011 12:26
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Does anyone know, if the Ekspress-AM4 satellite was insured?
According to
Interfaks, yes, it was (7+ billions roubels).
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#72
by
Danderman
on 18 Aug, 2011 13:03
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Thanks Astropl.
Reads that the Briz-M lost all power at fourth stage ignition. No hope for the satellite, as no power = no S/C Sep, regardless of the orbit etc
That is certainly a poor system architecture, if the satellite cannot separate itself from a dead upper stage.
Heads will roll.
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#73
by
Space Pete
on 18 Aug, 2011 13:05
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Does this mean that Vladimir Popovkin will be fired now?
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#74
by
Danderman
on 18 Aug, 2011 13:13
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Does this mean that Vladimir Popovkin will be fired now?
Typically, heads roll at the contractor level, which means that the impact will hit Khrunichev. Its one thing to have a component fail, but the system should have some capability of recovering from a single point failure. In this case, a failed capacitor or electrical connection caused complete LOM.
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#75
by
alk3997
on 18 Aug, 2011 13:15
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That is certainly a poor system architecture, if the satellite cannot separate itself from a dead upper stage.
Heads will roll.
Could you please tell us how you would have designed the upper stage to avoid this problem?
Andy
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#76
by
Skyrocket
on 18 Aug, 2011 13:20
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In this case, a failed capacitor or electrical connection caused complete LOM.
Source?
I do not think, that any concrete reason for the LOS has been published so early.
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#77
by
Herb Schaltegger
on 18 Aug, 2011 13:20
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Does this mean that Vladimir Popovkin will be fired now?
Typically, heads roll at the contractor level, which means that the impact will hit Khrunichev. Its one thing to have a component fail, but the system should have some capability of recovering from a single point failure. In this case, a failed capacitor or electrical connection caused complete LOM.
You have no idea if a single failed electronic component caused the failure. You're speculating baselessly.
Besides, with regard to your "heads will roll" comment, this is hardly the first time a Briz-M has failed - how many heads are there left to be rolled over in the Russian aerospace industry these days then?
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#78
by
Danderman
on 18 Aug, 2011 13:34
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That is certainly a poor system architecture, if the satellite cannot separate itself from a dead upper stage.
Heads will roll.
Could you please tell us how you would have designed the upper stage to avoid this problem?
Andy
A design that allows the payload to separate itself in the event of total system failure of the upper stage is not exactly rocket science.
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#79
by
kevin-rf
on 18 Aug, 2011 13:34
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You have no idea if a single failed electronic component caused the failure. You're speculating baselessly.
Spot on... It will be interesting to what they point to as the most likely cause. A baseless WAG, but often Russia failures get different groups pointing at other groups as the source of the failure.
Besides, with regard to your "heads will roll" comment, this is hardly the first time a Briz-M has failed - how many heads are there left to be rolled over in the Russian aerospace industry these days then?
It was actually my first reaction, considering this is a high profile failure of a satellite that belongs to Russia. The failure will become political, this failure will catch the eye of Putin and Medvedev. Heads will roll, and not necessarily the heads responsible for it. I just hope too many careers and lives are not ruined by this mess.
