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From: freed@nss.FIDONET.ORG (Bev Freed)
Newsgroups: sci.space.shuttle
Subject: Re: Mission Map question
Message-ID: <451.28573F12@nss.FIDONET.ORG>
Date: 12 Jun 91 17:36:33 GMT
Organization: The NSS BBS, Pittsburgh PA (412) 366-5208
Lines: 24


 > >I have been watching NASA select over the years, and noticed
 > a symbol
 > >on the tracking map that shows up on every orbit. It looks
 > like a [
 > >and it's on the bottom of each orbit and/or the top (can't
 > remember).
 > >What does this symbol mean?
 >
 
The brackets indicate the day/night terminators.  I'll probably get this backwards because it's been a while since I used them, but: 
 
      [ = beginning orbital night
      ] = beginning orbital day
 
They are located on the orbital track.


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