Launch News Soyuz MS-10 Orbit Failure (developing story)

[boogabooga]

No no no, stop now...It's not a legit copyright discussion without Face's point of view!!
;-)

It was supposed to be a discussion about the Soyuz failure...:shifty:

 

[Thunder Chicken]

Союз МС-10: разбор аварии и перспективы МКС | Море Ясности - YouTube

Great video. Can anyone give a synopsis in English? What are the key points?

 

[Artlav]

Basically he explains how the staging works, then goes through the footage pointing out what could have gone wrong (one or two vents not open, sensor failure, pyro failures), where you can see it (location and rotation rates of the boosters, lack of gas cloud, etc), basically what would various failure modes look like.

Then he continues doing the same about the escape system and which parts of it worked (tower jettisoned, shroud used).
Then he talks about ISS logistics (Progress is cancelled too), crew changes (trying to avoid the unmanned state at all costs), Soyuz endurance (H2O2 expiration), etc, and how that gets affected.

And after all that he closes with a request to wait for the investigation and avoid making guesses. :/

 

[MaverickSawyer]

So, in other words, just rehashing the same ol' stuff we've all covered. Gotcha.

 

[GLS]

 

[dbeachy1]

Interesting read here: Astronaut recounts harrowing failed space launch

 

[IronRain]

Interesting read here: Astronaut recounts harrowing failed space launch

Interesting indeed!

Hague and Ovchinin were all grins from ear to ear, high-fiving each other and cracking jokes about the short flight.

That's exactly how I imagined the first moments after landing :lol:

The capsule had landed on the hatch that the astronauts are supposed to be able to use to evacuate.

This surpirsed me a bit. Either:

1. There is a hatch on the capsule that I don't know of
2. It landed up-side down (which it didn't, and seems impossible to me)
3. The author sees the movie 'Gravity' as something realistic

 

[Urwumpe]

Upside down is highly doubtful, the landing site was perfectly flat in the photographs. Would there have been a ditch or the capsule landed in a frozen lake, I could have imagined it....

I would rather say, its not unluckily that the capsule rolled in a way, that the crew came to rest heads down. But still, this is nothing not covered by training - its not different to emergency training for helicopters or cars.

EDIT: Maybe the author of the article got confused by the parachute hatches - these should be on top if the astronauts sit heads-up.

 

[GLS]

@2:50, the SAS working on the 2º launch of the N1.

 

[IronRain]

Soyuz MS-10 abort caused by sensor failure at booster separation

Russian investigators have concluded last month’s Soyuz MS-10 abort was caused by a sensor failure on one of the four Soyuz FG boosters. The sensor, which triggers LOX valves to vent on the top of the booster – allowing them to cleanly depart from the core – resulted in the booster sliding down the side of the core and rupturing it tank, causing the Soyuz FG to fail and the Soyuz MS-10 to conduct an emergency abort. A press conference blamed an “error during assembly” of the launch vehicle as the root cause.

[...]

Sources:
- https://www.nasaspaceflight.com/2018/11/soyuz-ms-10-abort-sensor-failure-booster-separation/

 

[DaveS]

 

[GLS]

Пуск РН «Союз-ФГ» с ТПК «Союз МС-10» - YouTube

Finally it is made public!
Very dramatic, even in slow motion. :jawdrops:

 

[Urwumpe]

Finally it is made public!
Very dramatic, even in slow motion. :jawdrops:

Slow motion? The video feels like it is twice the speed...

 

[GLS]

Slow motion? The video feels like it is twice the speed...

Yes, it is sped up, but I watched it in slow motion.

 

[IronRain]

[ame="https://youtu.be/ocn7aLqEq-Q"]Soyuz rocket failure simulation - YouTube[/ame]


Verzonden vanaf mijn iPhone met Tapatalk

 

[steph]

https://www.bbc.com/news/world-europe-46055960

Apparently, it was a sensor failure.

 

[Urwumpe]

Yes, according to the Facebook posts of Roskosmos, it was a 6.5° bend in a mechanism.

 

[GLS]

(...)Also, according to the official timeline, the separation of the Descent Module, SA, from the escape stack took place at T+158.75 seconds in flight (121.57 + 37.18 seconds). However, the crew of Soyuz MS-10 reported that the separation had taken place at 11:42:50 Moscow Time which is equal to T+154.5 seconds in flight.(...)

http://russianspaceweb.com/soyuz-ms-10.html#scenario
Oh boy, here we go... :uhh:

---------- Post added at 04:11 PM ---------- Previous post was at 03:30 PM ----------

... and it continues... :facepalm:
[ame="https://twitter.com/RussianSpaceWeb/status/1058388559055540225"]https://twitter.com/RussianSpaceWeb/status/1058388559055540225[/ame]

 

[Linguofreak]

Yeah, there is an obvious cut in the footage. The question is *why*? I can't imagine that there's anything in the missing frames more embarrassing than the separation failure itself, much less more embarrassing than having blatantly missing frames from the video. If there was something they really didn't want the world to see, they could have not released anything at all, and if the missing frames were caused by a technical fault (unlikely, given the photo above) they could have explained that. All removing them does is make Russia look paranoid and incompetent.