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Heads Up: Shuttle Discovery and the ISS.

Spectators Balcony (Spotters Corner) If you're not a professional pilot but want to discuss issues about the job, this is the best place to loiter. You won't be moved on by 'security' and there'll be plenty of experts to answer any questions.

Heads Up: Shuttle Discovery and the ISS.

Old 7th Mar 2011, 18:34
  #41 (permalink)  
Join Date: Aug 2007
Location: Dublin
Posts: 951
What a fantastic sight this evening. Very low on the horizon looking south from here in Dublin, two objects in chase. As I watched I was on the phone to relatives in the South of France who were watching the same objects passing almost over their heads.

What time is the landing at tomorrow?
Sober Lark is offline  
Old 7th Mar 2011, 19:10
  #42 (permalink)  
Join Date: Feb 1999
Location: UK
Posts: 1,080
Earliest possible landing time is mid Wednesday morning at Kennedy Space Centre.
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Old 7th Mar 2011, 19:13
  #43 (permalink)  
Join Date: Jan 2008
Location: Blighty (Nth. Downs)
Age: 73
Posts: 2,091
Yes, it was quite a treat. Their apparent brightness was too similar for this observer to decide which was which. (Anyone else able to decide? The ISS should be brighter than Discovery, being much bigger.)

The angular separation, as seen from my position, was of the order of 2 degrees, and seemed steady. (Just over the width of a finger at arm's length.) This leads me to speculate that Discovery may have positioned itself at the same orbit altitude as the ISS, either leading it or following it. (A lower orbit would be faster; higher orbit slower.)

When abeam us, they were over the north coast of Spain, so about 500nm (nautical miles) from SE England. Off the top of my head, 2-degree separation would equate to a separation of just over 15nm, i.e., about 30km.
Chris Scott is offline  

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