From: Jonathan McDowell (
Date: Fri Jul 21 2000 - 11:29:26 PDT

  • Next message: Mark A. Hanning-Lee: "ASCA is spinning"

    Kevin Fetter asked:
    >  I thought it takes a few days to ch
    ange a satellite's
    Nope - it just depends how much fuel you are willing to use in
    a single burn. All the GPS satellites carry a large solid motor
    which fires after a couple days to change the orbit from transfer
    orbit to circular orbit. This is a totally standard profile 
    for a GPS satellite. Now the motor's fired, it has to depend on
    its liquid thrusters and you'll see much smaller orbit changes.
     - Jonathan
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