Re: Atlantis in orbit...

From: Jonathan T Wojack (
Date: Mon Apr 08 2002 - 18:18:31 EDT

  • Next message: Kevin Mangis: "NASA web site currently shows STS in a 28 degree orbit"

    >     I knew about the OMS Assist, but I didn't know they were using 
    > it
    > regularly for ISS flights.  It's been a while since the last time I 
    > heard of
    > it being used.  I was trying to discern a difference in the image of 
    > the
    > shuttle from the OMS firing, but couldn't see one.  I figured the 
    > OMS is very
    > much fainter than the main engines, but was hoping with a wee bit of
    > resolution that it might be visible, but there were pretty far down 
    > range at
    > that point and certainly the 3 SSMEs were merged into a triangular 
    > blob at
    > that point already too.
    Is the OMS Assist used to shape the eventual orbit of the Space Shuttle,
    even while the 3 main engines are firing?  I would think that doing it
    earlier (i.e., before MECO) would be more efficient than waiting to you
    got to orbit.  But you are also firing your main engines at the same
    time, which will complicate matters....
    Jonathan T. Wojack       
    39.706d N   75.683d W            4 hours behind UT (-4)
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    This archive was generated by hypermail 2b29 : Mon Apr 08 2002 - 18:35:47 EDT