Author Topic: MISSION FAILURE: Progress M-27M launch – Soyuz-2-1A - April 28, 2015  (Read 335368 times)

Offline Galactic Penguin SST

This news piece http://ria.ru/space/20150428/1061356235.html reports that controllers have now resumed communication with Progress in both directions.
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Online Svetoslav

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According to this : http://www.interfax.ru/russia/438990

... a loss of the spacecraft is possible if they aren't able to achieve stable radio link and don't correct the orbit soon. The perigee is very low  - 120-130 km.

Online asmi

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According to this : http://www.interfax.ru/russia/438990

... a loss of the spacecraft is possible if they aren't able to achieve stable radio link and don't correct the orbit soon. The perigee is very low  - 120-130 km.
This is kinda obvious to everyone here.

Online asmi

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According to NASA TV, next comm pass is at 6am EDT.

Offline owais.usmani

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According to this : http://www.interfax.ru/russia/438990

... a loss of the spacecraft is possible if they aren't able to achieve stable radio link and don't correct the orbit soon. The perigee is very low  - 120-130 km.

I was thinking what would have been their action plan had this happened to a manned Soyuz. (I hope landing in the middle of an ocean would not be an option)

Online asmi

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According to mms://193.233.61.171/live current orbit is 193.7x278.7 km which is rather weird to me (maybe it's planned orbit?).
« Last Edit: 04/28/2015 09:53 AM by asmi »

Online Svetoslav

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http://ria.ru/space/20150428/1061360638.html

According to this very latest Ria Novosti, written entirely in capital letters:

К ВЫВОДУ "ПРОГРЕССА" НА НЕРАСЧЕТНУЮ ОРБИТУ МОГЛА ПРИВЕСТИ НЕСИНХРОНИЗИРОВАННАЯ РАБОТА ДВИГАТЕЛЯ III СТУПЕНИ РАКЕТЫ-НОСИТЕЛЯ — ЦИКЛОГРАММА ПОЛЕТА

Google translates it as: To the conclusion of "progress" an unplanned orbit could lead unsynchronized ENGINE III stage rocket - cyclogram FLIGHT

Online Svetoslav

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Update: The capital letters have been corrected. Now it says that unsynchronous work of the engine of the third stage is the reason for orbital anomaly.

Online asmi

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I was told on NK that live MCC-M feed (mms://193.233.61.171/live) indicates an actual orbit according to GS measurements. In this case there is no immediate danger to the spacecraft. There are issues with TM though.

Offline Satori

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So, we have two problems: no deployment of the KURS and the problem with the launcher 3rd stage?

Online asmi

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The Progress is supposed to enter into comms range right about now.

Online asmi

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So, we have two problems: no deployment of the KURS and the problem with the launcher 3rd stage?
The former is not certain at the moment - there is no TM which would indicate one way or another.
« Last Edit: 04/28/2015 10:09 AM by asmi »

Online Svetoslav

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So, we have two problems: no deployment of the KURS and the problem with the launcher 3rd stage?

I am really trying to help you with providing all possible information.

Unfortunately, Russian press is often contradictory.

Let's take for example this one:

http://tass.ru/kosmos/1936397

According to this, Mission Control Center doesn't confirm that there are problems with antennas. "We don't have such information", says the representative.

Online asmi

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According to this, Mission Control Center doesn't confirm that there are problems with antennas. "We don't have such information", says the representative.
Which is correct - lack of confirmation of deployment doesn't mean they are not deployed.

Online DaveS

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So, we have two problems: no deployment of the KURS and the problem with the launcher 3rd stage?

I am really trying to help you with providing all possible information.

Unfortunately, Russian press is often contradictory.

Let's take for example this one:

http://tass.ru/kosmos/1936397

According to this, Mission Control Center doesn't confirm that there are problems with antennas. "We don't have such information", says the representative.
Well, that has been the statement ever since the  launch, they can't tell whether or not that the Kurs antennas did deploy.
« Last Edit: 04/28/2015 10:27 AM by DaveS »
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Offline Satori

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Ok, guys, thank you for the clarification.

Offline Danderman

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Commands being issued from sea-based telemetry ships.

Can anyone elaborate on these sea-based telemetry ships?

Offline Liss

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Commands being issued from sea-based telemetry ships.

Can anyone elaborate on these sea-based telemetry ships?

Non-existent with the exception of Patsayev which is moored at Kaliningrad/Koenigsberg.
This message reflects my personal opinion based on open sources of information.

Online Svetoslav

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Latest (13:29):

http://ria.ru/space/20150428/1061371243.html

Progress went into zone of visibility. No telemetry.
« Last Edit: 04/28/2015 10:37 AM by Svetoslav »

Offline Artyom.

Launch photos...
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