I have produced an MS Excel spreadsheet to compute azimuth, elevation, R.A. and Dec, during space shuttle ascents on missions to ISS: http://satobs.org/seesat_ref/Shuttle/Shuttle_Ascent_Trajectory_to_ISS.xls To use, enter your observation site co-ordinates and the date and time of lift-off, in the specially labelled cells (those with red coloured font). The current version is set up for STS 123 on 2008 Mar 11 UTC, as seen from Washington, D.C. The trajectory data was for STS-88, as posted here: http://satobs.org/seesat/Jun-2000/0308.html I believe that for any given launch, the look angles computed by my spreadsheet will be accurate to within about one degree cross-track, and about 10 seconds time. Ted Molczan ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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