STS 128 Ascent to ISS Trajectory Spreadsheet

From: Ted Molczan (
Date: Mon Aug 24 2009 - 14:24:15 UTC

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    I have produced an MS Excel spreadsheet to compute azimuth, elevation, R.A. and
    Dec, and an indication whether the shuttle is in sunlight, or the umbra or
    penumbra of Earth's shadow, during STS 128's ascent to orbit on its mission to
    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 spreadsheet is set up for STS 128's scheduled launch on 2009 Aug 26 at
    05:36:05 UTC, as seen from Washington, D.C.
    I obtained the trajectory data from The CBS News Space Reporter's Handbook, by
    William Harwood:
    Scroll down to the SpaceCalc section, and see file for PC or for Mac.
    Ted Molczan
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