Re: question about 24 turnaround of VAB launch
Mir16609@aol.com
Fri, 17 Dec 1999 12:58:25 EST
In a message dated 12/17/1999 1:36:50 PM EDT, asb@CSUA.Berkeley.EDU writes:
> I noticed that when the current VAB launch has been delayed, it has been
> delayed for exactly 24 hours. My question is why? It would seem that if
> they have a specific orbit to get the satellite into, then the launch
> window would shift, as it has when they have delayed the current shuttle
> launch. What is it that dictates that the VAB launch window does not
> shift?
From:
http://eos-am.gsfc.nasa.gov/operations.html
"The TERRA spacecraft (formally known as EOS-AM) will operate in a
near-circular, sun-synchronous orbit with an inclination of approximately
98.2 degrees. The descending node crossing time is 10:30am. "
TERRA is not docking with anything, unlike STS-103. It seems to ba a
stand-alone system. A launch time change for a launch delay of 24 hours
would probably be accomodated within the previous 24 minute launch window.
From:
http://www.floridatoday.com/space/next/index.htm
"Launch will be from SLC-3 East at Vandenberg AFB, CA during a launch window
from 1:33:25 to 1:57:49 PM EST (1833 to 1857 GMT).
Cheers
Don Gardner 39.1796 N, 76.8419 W, 34m ASL
Homepage: http://hometown.aol.com/mir16609/
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