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  Space Shuttles - Space Station
  ISS Docking Ports?

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Author Topic:   ISS Docking Ports?
Aztecdoug
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Posts: 1330
From: Huntington Beach
Registered: Feb 2000

posted 09-20-2006 03:54 PM     Click Here to See the Profile for Aztecdoug   Click Here to Email Aztecdoug     Edit/Delete Message   Reply w/Quote
There is another thread going on about the greatest number of people in Space at any one time. It leads me to ask the following questions. Maybe one of the ISS experts can help out.

How many space ships can dock at the ISS at any one time?

Is the capacity for concurrent docking going to change as the ISS adds more modules?

If so, how many potential docking ports are planned?

Thanks

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Kind Regards

Douglas Henry

Enjoy yourself and have fun.... it is only a hobby!
http://home.earthlink.net/~aztecdoug/

Ben
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From: Daytona Beach, FL
Registered: May 2000

posted 09-20-2006 06:25 PM     Click Here to See the Profile for Ben   Click Here to Email Ben     Edit/Delete Message   Reply w/Quote
At the moment, there are four [accessible and used] docking ports: Shuttle port at the end of Destiny/PMA adapter. And Soyuz/Progress ports at the aft end of Zvezda, on Pirs, and on the nadir side of Zarya.

[Edited by Ben (September 20, 2006).]

Danno
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posted 09-21-2006 10:09 AM     Click Here to See the Profile for Danno   Click Here to Email Danno     Edit/Delete Message   Reply w/Quote
Don't forget the CBMs. A vehicle like the Dragon is supposed to be captured by the SSRMS and berthed to a CBM.

The HTV is also supposed to be berthed to part of the JEM.

Aztecdoug
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From: Huntington Beach
Registered: Feb 2000

posted 09-21-2006 03:38 PM     Click Here to See the Profile for Aztecdoug   Click Here to Email Aztecdoug     Edit/Delete Message   Reply w/Quote
Thanks guys for the replies. Let me explain what sparked my curiosity.

I had the impression that the Atlantis launch window was scheduled to close if they didn't make that last launch date to allow room for the TMA-9 flight coming up. Or perhaps it was a Progress flight?

In any event with 4 docking ports they could accomdate the shuttle and 3 Souyuz I imagine.

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Kind Regards

Douglas Henry

Enjoy yourself and have fun.... it is only a hobby!
http://home.earthlink.net/~aztecdoug/

RMH
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posted 09-21-2006 03:47 PM     Click Here to See the Profile for RMH   Click Here to Email RMH     Edit/Delete Message   Reply w/Quote
I got the impression that they didn't want to create so much activity at once, with both the Shuttle and Soyuz crews, for the ISS expedition crew. But I think you are correct in saying that they could all be docked at the same time if necessary.

Robert Pearlman
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From: Houston, TX
Registered: Nov 1999

posted 09-21-2006 03:47 PM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
The limiting factor is not so much the number of ports, but the Russian autonomous docking system. Apparently, certain shuttle systems can interfere with KURS, and as such NASA imposed its own limit on the STS-115 launch window to avoid conflicts with the arriving Soyuz and departing Progress.

All four two Soyuz, one Progress and Atlantis could have been docked at the same time but were any of the Russian vehicles needed in motion, the shuttle would have to be backed away from the ISS first.

[Edited by Robert Pearlman (September 21, 2006).]

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