GEO IK 2 observed during its final 24-hour in orbit

From: Alain Figer (
Date: Mon Jul 15 2013 - 08:27:20 UTC

  • Next message: Alain Figer: "Re: GEO IK 2 observed during its final 24-hour in orbit"

    On 14 July 2013, I spotted  GEO IK 2 (2011-05A) passing by Epsilon Boo with an 1.9°/sec angular velocity in the twilight (Sun height : 8.0° below horizon) at 20h18m43s UTC, what was 6 seconds ahead the Calsky prediction. The brightness was quickly variable (mag 0 to 4 or 5). According to Calsky the height above Earth was 191km.
    There has been a small peak of solar activity in extreme UV on 13 July 2013 (at the moment it is slowly decreasing) .
    According to the latest Space-Track bulletin the decay might happen at: 14:44 UTC +/- 4 hours. 
    The same night, I also spotted Persona Rocket 3 seconds ahead of Clasky prediction. 2013-28B is due to decay at the end of the month.    
    Alain Figer
    48.67 N ; 2.13 E ; 170m a.s.l. 
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