Shuttle Ascent to ISS Trajectory Spreadsheet

From: Ted Molczan (
Date: Wed Dec 05 2007 - 06:19:20 UTC

  • Next message: Ted Molczan: "RE: Shuttle Ascent to ISS Trajectory Spreadsheet"

    I have produced an MS Excel spreadsheet to compute azimuth, elevation, R.A. and
    Dec, during space shuttle ascents on missions to ISS:
    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 122 on 2007 Dec 6, as seen from
    Washington, D.C. The sun will not have set at Washington, so visibility may be
    difficult. A bit further up the North East coast, the sun will have set.
    The trajectory data was for STS-88, as posted here:
    I believe that for any given launch, the look angles computed by my spreadsheet
    will be accurate to within about one degree during the first several minutes of
    flight, and progressively less accurate thereafter.
    Ted Molczan
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