Launch Window question

From: Jonathan T Wojack (
Date: Mon Mar 04 2002 - 16:13:24 EST

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    I have a question:
    When the Space Shuttle launches to the ISS, it has a 5-minute launch
    When the Space Shuttle launched this morning, it had a 62-minute launch
    During a recent launch which hauled iridium satellites into LEO, it had a
    0.08-minute launch window.
    Please tell me if my logic follows:
    When a Shuttle goes to the ISS, it is usually hauling some cargo to an
    inclined orbit, thus needing a short launch window to ensure that enough
    propellant is available for the mission.
    When the Shuttle goes to the HST, it has a large launch window because it
    is not going into a higher inclined orbit.
    When Iridium satellites are being hauled into orbit, a limited amount of
    fuel is available.  If the rocket is not launched at just the right time,
    there would be insufficient fuel for the rocket and its satellites to
    reach the required orbit.
    Jonathan T. Wojack       
    39.706d N   75.683d W      
    5 hours behind UT (-5)
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    This archive was generated by hypermail 2b29 : Mon Mar 04 2002 - 16:38:53 EST