TDRS 9 problem

From: Ralph McConahy (
Date: Fri Mar 22 2002 - 21:32:46 EST

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    The following concerns TDRS 9 (also known as TDRS-I as in the letter "i"). I
    received the text below via email at work today. The TLE, which is a couple
    days old, is from Alan's SATBASE.TLE...
    TDRS 9                                           35809 x 3522 km
    1 27389U 02011A   02079.92023253 -.00000062  00000-0  10000-3 0   171
    2 27389  21.3712 330.3662 6198488 182.9566 170.0660  2.06579292   294
    SEAL BEACH, Calif., March 21, 2002 - The Tracking and Data Relay Satellite-I
    (TDRS-I), built by Boeing Satellite Systems for NASA, was launched at 5:59
    p.m. EST March 8 aboard an Atlas IIA rocket from Cape Canaveral Air Station,
    Fla. Subsequently, Boeing detected a problem with the supply of propellant
    from one of the satellite's four tanks. NASA was immediately notified.
    Boeing has been conducting a thorough investigation into the cause of the
    anomaly and has developed and is implementing procedures to get the
    satellite to its operational geosynchronous orbital position in order to
    meet established mission requirements and hand over the satellite in
    accordance with the customer's operational need date. The satellite's
    current orbit apogee is 35,800 kilometers (22,236 miles) and the perigee is
    approximately 8,000 kilometers (4,970 miles). Boeing is continuing
    successful orbit-raising maneuvers and has high confidence that it can
    resolve this anomaly. Boeing's Mission Control Center is operating the
    satellite in close coordination with NASA.
      Ralph McConahy
      34.8829N  117.0064W
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