RE: Rockets with changing mean motion

From: Kurt & Tiene (kjon@tiscali.be)
Date: Sun Jan 29 2006 - 14:09:01 EST

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    hi Mike,
    
    nice to see these type of warnings again !
    
    I just observed 87- 27 B on a high elevation pass from the Pole Star 
    till it disappeared in shadow in the low SE and did not notice any 
    change in brightness.  Maximum brightness was around +2.5.
    
    If I remember correctly (haven't been busy with this for quite some time...)
    
    we haven't seen much accelerations of the flashing period of Zeniths,
    most of them were from the C1 / SL-8 rocket bodies.
    
    Don't remember anything at all about the SL-14...
    
    regards
    
    Kurt Jonckheere
    
    87- 27 B 05-01-29 18:33      KJ                       S, +2.5
    
    -----Oorspronkelijk bericht-----
    Van: Mike McCants [mailto:mmccants@io.com] 
    Verzonden: 29 January 2006 18:41
    Aan: SeeSat-L@satobs.org
    Onderwerp: Rockets with changing mean motion
    
    
    Object 17590 (87-27B, Cosmos 1833 rocket) has a changing
    mean motion with a small negative "drag" term over the
    last week.  The drag term for day 28 is -.000009.  This
    is an SL-16 (Zenit) rocket.
    
    Object 23412 (94-78B, GEO IK Rk) had a changed mean motion between Jan. 10
    and Jan. 18.  The SSR says this is an SL-14 rocket.
    
    There is a chance that these objects are now tumbling.
    
    Mike McCants
    
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