Revised STS 111 estimated elements for launch on 2002 Jun 05

From: Ted Molczan (molczan@rogers.com)
Date: Tue Jun 04 2002 - 12:32:23 EDT


An e-mailed comment from a SeeSat-L reader, that the predicted altitude
of the shuttle over the U.K. seemed too high, has prompted me to review
and revise my estimated MECO elements.

I found that I had used an unrealistic argument of perigee for the MECO
orbit. Here is my revised report.

For the scheduled launch on 2002 Jun 05, I estimate lift-off at 21:22:40
UTC +/- 12 s.

Estimated MECO elements:

1 70000U          02156.91822810  .00000000  00000-0  00000-0 0    16
2 70000  51.6368 109.9446 0140000 352.0000 185.6343 16.48000000    05

Umbral eclipse entry would be about 21:44:31 UTC, 49.07 N, 4.56 E, 186
km altitude, but it would be prudent to allow for perhaps 1 min
uncertainty. (This is one minute earlier and considerably lower in
altitude than my original estimate.)

Some portion of the pass would be visible from much of northern Europe.

Estimated OMS-2 elements:

1 70000U          02156.91822820  .00025948  12201-4  18433-4 0    18
2 70000  51.6368 109.9446 0011454 285.1487 252.4856 16.17009401    02

I used STS 108's elements as a proxy for STS 111.

Ted Molczan


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