Author Topic: MISSION FAILURE: Progress M-27M launch – Soyuz-2-1A - April 28, 2015  (Read 335592 times)

Online DaveS

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Latest (13:29):

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

Progress went into zone of visibility. No telemetry.
I wonder if this lack of telemetry is an indication of a dead spacecraft?
"For Sardines, space is no problem!"
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"We're rolling in the wrong direction but for the right reasons"
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Online Svetoslav

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I think it's still too early to make such drastic conclusions, I'm just following news sites :) and remain hopeful that they could still resolve comm problems.
« Last Edit: 04/28/2015 10:48 AM by Svetoslav »

Offline Galactic Penguin SST

Latest (13:29):

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

Progress went into zone of visibility. No telemetry.
I wonder if this lack of telemetry is an indication of a dead spacecraft?

Or maybe it's a loss of attitude due to the loss of altitude? The antenna can be pointed in the wrong direction if the spacecraft is deployed in the wrong attitude (which could also affect the orbit if the attitude is wrong anywhere before engine cutoff).

Unfortunately more data is needed to know what's going on - including the orbit. NORAD has yet to issue a new TLE....
« Last Edit: 04/28/2015 10:59 AM by Galactic Penguin SST »
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Offline Galactic Penguin SST

Latest (13:29):

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

Progress went into zone of visibility. No telemetry.

Also reported on NASA TV right now.
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Offline RotoSequence

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NASA posted an update here: https://blogs.nasa.gov/spacestation/2015/04/28/progress-cargo-craft-to-dock-with-space-station-thursday/

Quote
...Russian flight controllers initially could not confirm the health of the spacecraft’s systems and deployment of Kurs rendezvous and other navigational antennas. They selected the backup rendezvous plan with a targeted arrival Thursday for the cargo ship and its supplies for the  space station crew. The Progress spacecraft is in a safe preliminary orbit.

Online Svetoslav

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Latest, 13:59:

http://ria.ru/space/20150428/1061380357.html

Russian Progress spacecraft completes third turn around the Earth. There is no telemetry. There is going to be a meeting about what to do next.
« Last Edit: 04/28/2015 11:13 AM by Svetoslav »

Offline satwatcher

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Space-Track website is back online. No new orbital data on Progress M-27M.

Offline asmi

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Latest, 13:59:

http://ria.ru/space/20150428/1061380357.html

Russian Progress spacecraft completes third turn around the Earth. There is no telemetry. There is going to be a meeting about what to do next.
On a bright side - that means that TLEs provided were most certainly incorrect - otherwise the spacecraft would've likely reentered by now.

Offline John44

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Offline Galactic Penguin SST

Looks like the Russians just got video from the Progress spacecraft - it seems to be rapidly rotating on the long axis....  :o
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Online DaveS

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I think we just got some TLM! Video downlink showed spacecraft in wild spin!
"For Sardines, space is no problem!"
-1996 Astronaut class slogan

"We're rolling in the wrong direction but for the right reasons"
-USA engineer about the rollback of Discovery prior to the STS-114 Return To Flight mission

Online DaveS

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I think the conclusion right now is complete loss of attitude control, especially if has been spinning ever since launch!
"For Sardines, space is no problem!"
-1996 Astronaut class slogan

"We're rolling in the wrong direction but for the right reasons"
-USA engineer about the rollback of Discovery prior to the STS-114 Return To Flight mission

Offline Galactic Penguin SST

Looks like the Russians just got video from the Progress spacecraft - it seems to be rapidly rotating on the long axis....  :o

My rudimentary count shows that it is tumbling with an angular speed of 60 degrees per second (6 seconds per revolution).  :-X
Chinese spaceflight is a cosmic riddle wrapped in a galactic mystery inside an orbital enigma... - (not) Winston Churchill

Online DaveS

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Looks like the Russians just got video from the Progress spacecraft - it seems to be rapidly rotating on the long axis....  :o

My rudimentary count shows that it is tumbling with an angular speed of 60 degrees per second (6 seconds per revolution).  :-X
I got the same rate by counting the seconds between each appearance of atmospheric limb in the video.
"For Sardines, space is no problem!"
-1996 Astronaut class slogan

"We're rolling in the wrong direction but for the right reasons"
-USA engineer about the rollback of Discovery prior to the STS-114 Return To Flight mission

Offline lucspace

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Is that video available anywhere?

Offline RotoSequence

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Is that video available anywhere?

I caught a glimpse of it on NASA TV when they were displaying the video in the upper right at Russian mission control.

Offline satwatcher

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Ground track map as shown on NASA TV shows it late with respect to the 123 to 127km perigee orbits published by space-track, suggesting it did boost its orbit.

Offline RotoSequence

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NASA TV reports that rotation dampening commands were sent to the Progress spacecraft towards the tail end of the ground station pass. They'll have to wait ~an hour and 14 minutes to find out if the commands went through and/or were successful.

Online DaveS

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I wonder if this a bit of shades of Gemini VIII here? Stuck thruster? That could explain the high rotational rate and why it was only in one axis.
"For Sardines, space is no problem!"
-1996 Astronaut class slogan

"We're rolling in the wrong direction but for the right reasons"
-USA engineer about the rollback of Discovery prior to the STS-114 Return To Flight mission

Offline Liss

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Ground track map as shown on NASA TV shows it late with respect to the 123 to 127km perigee orbits published by space-track, suggesting it did boost its orbit.
... suggesting that these orbits were erroneous.
This message reflects my personal opinion based on open sources of information.

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