Author Topic: Progress M-25M (No. 424) Soyuz-2-1A – October 29 2014  (Read 65956 times)

Online Satori

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Re: Progress M-25M (No. 424) Soyuz-2-1A – October 29 2014
« Reply #40 on: 10/27/2014 07:42 am »
Launcher transported today to the launch pad... http://www.roscosmos.ru/21049/ (in Russian)
« Last Edit: 10/27/2014 07:44 am by Satori »

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Re: Progress M-25M (No. 424) Soyuz-2-1A – October 29 2014
« Reply #41 on: 10/27/2014 07:49 am »
October 27, 2014

Soyuz launch vehicle rollout to the launch pad

At Baikonur launch site the preparations continue for the launch of Progress M-25M cargo vehicle under the International Space Station program.

Soyuz launch vehicle was rolled out from the integration building to the launch pad. Soyuz-2.1a launch vehicle with Progress M-25M transport vehicle is installed on the launch pad. L-2 days activities have been started.

Online Satori

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Re: Progress M-25M (No. 424) Soyuz-2-1A – October 29 2014
« Reply #42 on: 10/27/2014 10:04 am »
Launcher integration on MIK


Offline asmi

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Re: Progress M-25M (No. 424) Soyuz-2-1A – October 29 2014
« Reply #43 on: 10/27/2014 01:02 pm »
Rollout (Roscosmos video):


Offline jcm

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Re: Progress M-25M (No. 424) Soyuz-2-1A – October 29 2014
« Reply #44 on: 10/27/2014 09:51 pm »
Acording to my classification, Progress M-25M will be the 350th Soviet/Russian spaceship to attempt to reach orbit !

18 Vostok/Voskhod, 146 Soyuz, 147 Progress, 7 BOR, 1 Buran, 15 L1, 1 LOK, 3 T2K, 8 VA, 3 TKS.

OK, I admit that BOR and T2K are not really "spaceships"... That's just for the fun of statistics ! :D

I wouldn't consider Progress a space ship. The re-entry mode is quite different... ;-)
Different from the Apollo lunar module? :-)
Different from an ISS module? 
and many science fiction spaceships cannot enter atmosphere...
I would say there is an interesting category of 'spacecraft with pressurized volume that can be entered on orbit
by astronauts'...  Progress and the ISS modules are the same in this respect -   I think 'spaceship' is a reasonable
word for this category, but YMMV.
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Offline edkyle99

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Re: Progress M-25M (No. 424) Soyuz-2-1A – October 29 2014
« Reply #45 on: 10/27/2014 10:44 pm »
Snow already!

 - Ed Kyle

Offline russianhalo117

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Re: Progress M-25M (No. 424) Soyuz-2-1A – October 29 2014
« Reply #46 on: 10/27/2014 11:03 pm »
Snow already!

 - Ed Kyle
yep and more to come.

Online Lewis007

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Re: Progress M-25M (No. 424) Soyuz-2-1A – October 29 2014
« Reply #47 on: 10/28/2014 09:54 am »
Snow already!

 - Ed Kyle
yep and more to come.

Winter is coming... (not only in Westeros)  ;)
« Last Edit: 10/28/2014 10:01 am by Lewis007 »

Offline Fuji

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Re: Progress M-25M (No. 424) Soyuz-2-1A – October 29 2014
« Reply #48 on: 10/28/2014 11:32 am »
MCC-M is released Progress-M-25M homepage. Payload weight is 2,350kg.
http://www.mcc.rsa.ru/progress_m25m.htm

Progress M-24M page is here.
http://www.mcc.rsa.ru/progress_m24m.htm

Online Galactic Penguin SST

One could see that the introduction of upgraded control systems greatly improved the orbit injection accuracy in the Soyuz series:

For Progress M-25M the orbit specifications are:
Inclination: 51.67 ± 0.03 °
Perigee: 193 ± 2 km
Apogee: 240 ± 5 km
Period: 88.53 ± 0.05 min

....compared with that of Progress M-24M:
Inclination: 51.66 ± 0.06 °
Perigee: 193 + 7 / -15 km
Apogee: 245 ± 42 km
Period: 88.59 ± 0.37 min

Also notice that there are some differences in the launch sequence as well - notably that the fairing separates much later on the Soyuz-2 (T+296.35s instead of T+160.56s on the Soyuz-U, i.e. now after 2nd stage has separated!). I think this is because separating later is actually preferable, but due to the limited control ability on the older series the fairing had to be shaved earlier in flight?  ::)

« Last Edit: 10/28/2014 11:45 am by Galactic Penguin SST »
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Online Chris Bergin

One of the best Progress threads, lots of good info here. Many thanks!
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Offline asmi

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Re: Progress M-25M (No. 424) Soyuz-2-1A – October 29 2014
« Reply #51 on: 10/28/2014 12:33 pm »
Also notice that there are some differences in the launch sequence as well - notably that the fairing separates much later on the Soyuz-2 (T+296.35s instead of T+160.56s on the Soyuz-U, i.e. now after 2nd stage has separated!). I think this is because separating later is actually preferable, but due to the limited control ability on the older series the fairing had to be shaved earlier in flight?  ::)
I doubt it - if anything presence of fairing makes control easier.

Offline Danderman

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Re: Progress M-25M (No. 424) Soyuz-2-1A – October 29 2014
« Reply #52 on: 10/28/2014 01:40 pm »

Also notice that there are some differences in the launch sequence as well - notably that the fairing separates much later on the Soyuz-2 (T+296.35s instead of T+160.56s on the Soyuz-U, i.e. now after 2nd stage has separated!). I think this is because separating later is actually preferable, but due to the limited control ability on the older series the fairing had to be shaved earlier in flight?  ::)



This also could be the way that Soyuz 2 maintains the same drop zone for the core stage as for Soyu-U, by carrying the fairing longer.

Offline Danderman

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Re: Progress M-25M (No. 424) Soyuz-2-1A – October 29 2014
« Reply #53 on: 10/28/2014 01:42 pm »
MCC-M is released Progress-M-25M homepage. Payload weight is 2,350kg.
http://www.mcc.rsa.ru/progress_m25m.htm


Amazingly, payload mass and vehicle mass are listed as exactly the same as for a Soyuz-U mission, even though Soyuz-2 provides an extra 400 kg upmass capability.


Online Chris Bergin

Moved for live coverage.
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Online Chris Bergin

Will appreciate it if someone can cover this as I'm still working with the Antares failure and there's no way I'm going to be able to work with a few hours sleep.
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Offline Prober

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Will appreciate it if someone can cover this as I'm still working with the Antares failure and there's no way I'm going to be able to work with a few hours sleep.

the hrs might work for me....will try 8)
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Offline Steven Pietrobon

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I'll be able to cover this. Coverage starts in 30 minutes.
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Offline Mark McCombs

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Thanks for the information, Galactic Penguin SST.  Good stuff.
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Offline Prober

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ok here we go... the music isn't bad
« Last Edit: 10/29/2014 05:46 am by Prober »
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