ISS/Discovery have raised their orbit

From: Ted Molczan (
Date: Sun Jul 31 2005 - 11:38:42 EDT

  • Next message: Ted Molczan: "Updated elements"

    Yesterday, ISS/Discovery raised their orbit slightly (0.87 km). 
    I am reasonably certain this had not been in the flight plan, so I suspect it
    was a collision avoidance manoeuvre.
    USSTRATCOM's elements will take a while to accurately reflect the effects of the
    burn, so be extra careful using their elements or predictions made by services
    that use them.
    This NASA page has the correct present elements, as well as predicted future
    elements that take into account all planned manoeuvres:
    They are on this web page (for shuttle hit the red icon; for ISS, hit the green
    Here is the present ISS/Discovery orbit, provided by NASA:
    1 25544U 98067A   05212.34066944  .00016071  00000-0  12697-3 0  9001
    2 25544  51.6460  34.8079 0001945 192.3100 167.8015 15.71759745 22632
    The same site offers this web page of predictions for major cities around the
    world, generated using the above elements, so it should be very accurate:
    Later today, I intend to post information regarding the potential to observe ISS
    and Discovery in close proximity to one another, after they undock, now
    scheduled for August 6 UTC.
    Ted Molczan
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