[FPSPACE] ISS and Shuttle seen in daylight......
John Locker
john at satcom.freeserve.co.uk
Thu Jun 12 12:50:48 EDT 2008
Todays exercise was to try and catch both ISS and the orbiter in
daylight.....with the sun 37 degs above horizon.
At 17.06.53 BST ISS was due to pass by at 55.4 degs elevation mag -2.8 , the
shuttle was due to follow at 17.07.19 according to Calsky ...elevation again
, 55.4 degs , but mag 0.2 ( 26 seconds behind )
I was confident ISS would be vis as 90 minutes earlier I had seen it
mag -2.2 with the sun at 50 degs , but the shuttle was another matter.
As it turned out , both turned up on time.....and Discovery "was" just
visible.
Quality of images is poor again due to focus problems and shimmering in the
OTA..
FOV about 7 x 4 arc minutes
http://mysite.wanadoo-members.co.uk/satcom_transits/ISSSTSdaylight.gif
Further details shortly
John
UK
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