Author Topic: FAILURE: Soyuz-2.1b/Fregat-M – Meteor-M 2-1 et al. – Vostochny - Nov 28, 2017  (Read 58334 times)

Online Alter Sachse

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So the bottom line is that:
Soyuz-2.1B launch and insertion was OK;
Meteor-M №2-1 is not in the intended 820 km circular orbit;
it is not known if any of Fregat burns were successful.
This can mean that all satellites are lost ...

Online Svetoslav

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Ouch! That hurts. According to interfax (http://www.interfax.ru/russia/589367) due to a human error the Fregat stage could have fired in improper orientation so instead going into orbit, it has gone into the atmosphere .... This is what preliminary analysis shows.

The error occurred during the first burn of the engine.
« Last Edit: 11/28/2017 09:28 AM by Svetoslav »

Offline Kosmos2001

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Human error? Does it mean during the mission planning or introducing the data in the flight software?
« Last Edit: 11/28/2017 01:32 PM by Kosmos2001 »

Offline SmallKing

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Human error? Does it mean during the mission planning or introducing the data in the flying software?
It's very common to me. Chinese upper stage can also upload data during coasting
Some are bound for happiness, some are bound to glory, some are bound to live with less, who can tell your story?

Offline input~2

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Ouch! That hurts. According to interfax (http://www.interfax.ru/russia/589367) due to a human error the Fregat stage could have fired in improper orientation so instead going into orbit, it has gone into the atmosphere .... This is what preliminary analysis shows.

The error occurred during the first burn of the engine.
Quote from: same source
According to preliminary data, there was an error in the flight task of the carrier rocket and the Fregat booster block, as a result of which the first impulse was issued in the wrong orientation
This does not sound like a real time upload
« Last Edit: 11/28/2017 09:54 AM by input~2 »

Offline Liss

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Too many problems with those Fregat and Briz upper stages in the past! :'(
Only one Fregat failed until now.
This message reflects my personal opinion based on open sources of information.

Online Svetoslav

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This is not the only problem with Fregat this month. Let's remind that the Angosat launch was delayed due to problems with Fregat during preparations and now is scheduled for the end of December at the earliest.


Offline owais.usmani

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And I thought this would finally be an year without a Russian launch failure.  :-X  :(

Offline centaurinasa

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Quote
Interfax: A human error could have led to a wrong orientation of the Fregat upper stage during its 1st engine firing, sending the whole stack into the Atlantic:

https://twitter.com/RussianSpaceWeb/status/935465312178331648

Online MATTBLAK

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Too many problems with those Fregat and Briz upper stages in the past! :'(
Only one Fregat failed until now.
Thanks for the correction - I thought there was more than one.
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Offline centaurinasa

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Offline Kosmos2001

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Quote
Interfax: A human error could have led to a wrong orientation of the Fregat upper stage during its 1st engine firing, sending the whole stack into the Atlantic:

https://twitter.com/RussianSpaceWeb/status/935465312178331648

This reminds me that upside-down sensor in the Proton.

Offline Satori

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Lets hope this will not futher delay Angosat's launch.

Offline gwiz

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Too many problems with those Fregat and Briz upper stages in the past! :'(
Only one Fregat failed until now.
Thanks for the correction - I thought there was more than one.
There were a couple more that were not exactly successes - payload ending in wrong orbit.

Offline owais.usmani

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Too many problems with those Fregat and Briz upper stages in the past! :'(
Only one Fregat failed until now.
Thanks for the correction - I thought there was more than one.

The Galileo launch failure was also a fregate failure so it should be two fregate failures now?

Offline smoliarm

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Too many problems with those Fregat and Briz upper stages in the past! :'(
Only one Fregat failed until now.

In my log, there are 3 failure cases involving Fregats:
{Launch Date...Payload Name(s)...Launch Vehicle...Launch Site...Orbit: Planned[Achieved]...Launch Status}
May 21, 2009...Meridian No. 12L...Soyuz-2.1a/Fregat   PLE LC-43/4...Molniya[HEO]...Wrong orbit
Dec 23, 2011...Meridian 5...Soyuz-2.1b/Fregat-M   PLE LC-43/4...Molniya[FTO]...Fail to orbit
Aug 22, 2014...Galileo 5 & 6 (Doresa & Milena)...Soyuz-STB/Fregat-MT...Ko ELS...MEO-Gal[HEO]...Wrong orbit

Although, only the last one can be attributed to Fregat without doubt.
In the first and second cases the failure cause may be in the third stage as well.
However, I would not say "Only one Fregat failed until now" since Fregat can not be excluded in two more cases.

Offline Rik ISS-fan

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Nooo, not again.
VS09 FOC M1 & M2
« Last Edit: 11/28/2017 11:35 AM by Rik ISS-fan »

Offline Liss

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Too many problems with those Fregat and Briz upper stages in the past! :'(
Only one Fregat failed until now.
May 21, 2009...Meridian No. 12L...Soyuz-2.1a/Fregat   PLE LC-43/4...Molniya[HEO]...Wrong orbit
Dec 23, 2011...Meridian 5...Soyuz-2.1b/Fregat-M   PLE LC-43/4...Molniya[FTO]...Fail to orbit
Aug 22, 2014...Galileo 5 & 6 (Doresa & Milena)...Soyuz-STB/Fregat-MT...Ko ELS...MEO-Gal[HEO]...Wrong orbit
May 21 2009 = human error, discrepancy in flight program data for Soyuz and Fregat
Dec 23 2011 = third stage aborted due to pressurization failure
Aug 22, 2014 = Fregat control system failure
This message reflects my personal opinion based on open sources of information.

Online Chris Bergin

Wow. Was fully expecting to update this thread and see the burns went well. Crazy. Updated William's article to where we are:

https://www.nasaspaceflight.com/2017/11/soyuz-2-1b-launch-meteor-m/

Offline Galactic Penguin SST

No new object has appeared on NORAD's list yet, although they can be up to days late so don't make conclusions from this.
« Last Edit: 11/28/2017 11:57 AM by Galactic Penguin SST »
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

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