Author Topic: LIVE: Dnepr – CryoSat-2 - April 8, 2010 – Baikonur  (Read 60273 times)

Offline Jester

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Re: LIVE: Dnepr – CryoSat-2 - April 8, 2010 – Baikonur
« Reply #120 on: 04/08/2010 06:56 pm »
Hi-Res Launch replay now available:

ftp://esa:[email protected]/Cryosat_II/2010-04-08_cryosat2_launch.mpg
« Last Edit: 04/08/2010 06:58 pm by Jester »

Offline Zipi

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Re: LIVE: Dnepr – CryoSat-2 - April 8, 2010 – Baikonur
« Reply #121 on: 04/08/2010 07:04 pm »
Official ESA Youtube video:
Broken man-made things can be fixed (if you find the pieces).

Offline dsky

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Re: LIVE: Dnepr – CryoSat-2 - April 8, 2010 – Baikonur
« Reply #122 on: 04/10/2010 08:58 am »

Yep, happy Germans at the control center :)

Project manager is English :)

The typical flight control team in ESOC is mixed nationality. In particular, the Flight Director for this mission is Italian (the guy shaking hands with somebody out of view).

The Mission Manager, Tommaso Parrinello, is also Italian but is based in ESRIN where the data processing will be performed. He was there at the event in Rome where we participated. Lot of relief after some very tense moments during the launch itself. The second try is always worst than the first.

Check also out this pictures on ESA's website that show some technical details of the launcher ground system, like the bottom "cover" (cannot find a better term) that is pushed sideways by a rocket, or the rings that fall away.

http://www.esa.int/SPECIALS/Cryosat/SEM0440OK7G_0.html

In the picture with the British Project Scientist, you also see Volker Liebig, ESA's director of the Earth Explorers Program and, on the left, Jean-Jacques Dordain, ESA's Director General.
If jokes are admitted in this forum I would say that it is like those old, very European, funny stories, where you have a Brit, a French and a German, and everything managed by Italians. The difference is that this combination seems to have worked out pretty well this time. :)

Why be a rocket scientist, when you can be a spacecraft engineer?

Offline Danderman

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Re: LIVE: Dnepr – CryoSat-2 - April 8, 2010 – Baikonur
« Reply #123 on: 04/10/2010 03:26 pm »
The bottom "cover" is called the "sabot".

Attached is a closeup of a "ring". They are heavy.

« Last Edit: 04/10/2010 03:31 pm by Danderman »

Offline Art LeBrun

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Re: LIVE: Dnepr – CryoSat-2 - April 8, 2010 – Baikonur
« Reply #124 on: 04/10/2010 03:43 pm »
Thank you. Dnepr technology is fascinating to learn about ( better yet to see).
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Offline dsky

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Re: LIVE: Dnepr – CryoSat-2 - April 8, 2010 – Baikonur
« Reply #125 on: 04/10/2010 05:25 pm »
The bottom "cover" is called the "sabot".

Attached is a closeup of a "ring". They are heavy.

Thanks!
I was hoping for a feedback like this.

I assumed that the purpose of the rings is that to keep the vehicle aligned in its "launch tube". Do they also keep the "pressure" at the bottom to increase the effectiveness of the ejection system?

Also, do you have details about the ejection itself? The LV manual doesn't provide info. At the event people talked about "black powder cartridge(s)" but on the commentary we heard about "gas generator".

In closing, during the event ESA TV showed an animation of the entire launch sequence with good details. Do we have that clip around?
Why be a rocket scientist, when you can be a spacecraft engineer?

Offline dsky

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Re: LIVE: Dnepr – CryoSat-2 - April 8, 2010 – Baikonur
« Reply #126 on: 04/10/2010 05:41 pm »
In the picture, Tommaso Parrinello, Cryosat Mission Manager, expressing his relief after Malindi acquired signals on the just deployed satellite. Now their job is starting.
Why be a rocket scientist, when you can be a spacecraft engineer?

Offline dsky

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Re: LIVE: Dnepr – CryoSat-2 - April 8, 2010 – Baikonur
« Reply #127 on: 04/10/2010 05:43 pm »
The three Earth Explorers currently in orbit, in the same 1:4 scale. These models are located in ESRIN.
« Last Edit: 04/10/2010 09:27 pm by dsky »
Why be a rocket scientist, when you can be a spacecraft engineer?

Offline Danderman

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Re: LIVE: Dnepr – CryoSat-2 - April 8, 2010 – Baikonur
« Reply #128 on: 04/10/2010 05:55 pm »
Also, do you have details about the ejection itself? The LV manual doesn't provide info. At the event people talked about "black powder cartridge(s)" but on the commentary we heard about "gas generator".

It smells like gunpowder.

 8)

Offline Art LeBrun

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Re: LIVE: Dnepr – CryoSat-2 - April 8, 2010 – Baikonur
« Reply #129 on: 04/10/2010 06:02 pm »
How is the sabot detached from the Dnepr? I see the charge to laterally blow it off to one side. The air pressure would need to be aligned to the missile very accurately for silo ejection. Hard to believe all that weight is ejected.
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Offline Nicolas PILLET

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Re: LIVE: Dnepr – CryoSat-2 - April 8, 2010 – Baikonur
« Reply #130 on: 04/11/2010 08:27 am »
The bottom "cover" is called the "sabot".

Attached is a closeup of a "ring". They are heavy.

Thanks for the picture Danderman ! Do you know for which flight they were taken ?
Nicolas PILLET
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Offline Nicolas PILLET

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Re: LIVE: Dnepr – CryoSat-2 - April 8, 2010 – Baikonur
« Reply #131 on: 04/11/2010 09:45 am »
The pictures of CryoSat-2's preparation let me think it happened in MIK-41, area 42.

But in this release, it is written that prep was in area 31. Any clarification about that ?

http://www.federalspace.ru/main.php?id=2&nid=9079
Nicolas PILLET
Kosmonavtika : The French site on Russian Space

Offline Danderman

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Re: LIVE: Dnepr – CryoSat-2 - April 8, 2010 – Baikonur
« Reply #132 on: 04/11/2010 01:59 pm »
The bottom "cover" is called the "sabot".

Attached is a closeup of a "ring". They are heavy.

Thanks for the picture Danderman ! Do you know for which flight they were taken ?

They are from the launch of the Demeter satellite in 2004.

Offline Spiff

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Re: LIVE: Dnepr – CryoSat-2 - April 8, 2010 – Baikonur
« Reply #133 on: 04/12/2010 09:04 pm »
Wow, what a strange way to get the bird into orbit. Pulling it on the burn and it "falls out of the back"!

Is this standard on a Dnepr? I've never seen it before.

Yes it is: http://www.kosmotras.ru/en/shema_polet/

I wanted to ask this before, but things got busy during launch. ;)

Ok, I understand that 'dropping' payload out of the back is useful especially on a vehicle designed to drop multiple warheads. But why the 180 degree turn? Seems to me not to be the most efficient way to plan your 3rd stage. What is the reason for this?

Thanks in advance!
I always consider space to be the FIRST frontier.

Offline bolun

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Re: LIVE: Dnepr – CryoSat-2 - April 8, 2010 – Baikonur
« Reply #134 on: 04/13/2010 07:36 am »

Esa's Cryosat mission switches on radar instrument

The radar instrument on Europe's Cryosat-2 spacecraft has been switched on and is reported to be working well.

The science phase of the mission is expected to start in a few months' time and continue through to at least 2013.

http://news.bbc.co.uk/2/hi/science/nature/8615172.stm

Offline Zipi

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Re: LIVE: Dnepr – CryoSat-2 - April 8, 2010 – Baikonur
« Reply #135 on: 04/26/2010 08:57 pm »
New 1080p HD quality Youtube launch video collection from Roscosmos:


This is really cool video clip, make sure to watch it with full quality and full screen. :-)
Broken man-made things can be fixed (if you find the pieces).

Online catdlr

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Dnepr – CryoSat-2 - April 8, 2010 – Baikonur - Update
« Reply #136 on: 05/11/2016 08:12 pm »
Changes in ice volume

European Space Agency, ESA

Published on May 11, 2016
This animation shows changes in ice volume in Antarctica, Greenland and the Arctic ocean measured by the CryoSat satellite, 2010–15. CryoSat’s readings also contribute to our knowledge of global ocean depth.

More about CryoSat:
http://www.esa.int/Our_Activities/Observing_the_Earth/CryoSat

It's Tony De La Rosa, ...I don't create this stuff, I just report it.

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