From the Seesat digest comes:
Date: Fri, 26 Mar 2010 20:55:40 -0400
From: "Ted Molczan" <
[email protected]>
Subject: STS 131 Ascent to ISS Trajectory Spreadsheet
To: <
[email protected]>
The ascent trajectory and look angles are primarily of interest to observers
near the east coast of North America, interested in observing the shuttle
during its ascent to orbit. STS 131 will be launched at night, but will
begin to exit eclipse about 3 min after launch. The sun will be above the
horizon at more northerly latitudes, making visbility more challenging than
usual.
I have produced an MS Excel spreadsheet to compute azimuth, elevation, R.A.
and Dec, an indication whether the shuttle is in sunlight, or the umbra or
penumbra of Earth's shadow, and the fraction of illumination (based on a
sphere), during STS 131's ascent to orbit on its mission to ISS:
https://satobs.org/seesat_ref/Shuttle/STS_131_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 spreadsheet is set up for STS 131's scheduled launch on 2010 Apr 05 at
10:21:22 UTC, as seen from Washington, D.C.
I obtained the trajectory data from The CBS News Space Reporter's Handbook,
by William Harwood:
https://www.cbsnews.com/network/news/space/downloads.html
Scroll down to the SpaceCalc section, and see file SpaceCalcPC_131.zip for
PC or SpaceCalcMac_131.zip for Mac.
Ted Molczan