Re: Progress M10M and rocket

From: Ralf Vandebergh (ralf.vandebergh@home.nl)
Date: Fri Apr 29 2011 - 13:34:52 UTC

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    For clearity, in the first and second part of the pass, all frames show the same orientation of the rocket, only the
    orientation compared of the first part and the second part is different. All frames within a certain time-span
    show the same orientation of the rocket. The tumbling seems to have been not very fast this time, which could
    be seen through the tracking scope; it appeared reasonable steady.
    
    Ralf
    
    From: Ralf Vandebergh 
    Sent: Friday, April 29, 2011 3:31 PM
    To: SeeSat-L@satobs.org 
    Subject: Re: Progress M10M and rocket
    
    Ok, this is very weird, I’m browsing through the Progress rocket frames and in the first part of the pass, in every frame there seems to
    be a single part visible next to the rocket, separated by a space. It can be a special lighting angle and that only parts of the rocket
    are illuminated, but it looks very rare, never seen before. In the other part of the pass, the rocket shows in every frame another
    orientation, this can be well explained by tumbling. Results later.
    
    Ralf
    
    From: Ralf Vandebergh 
    Sent: Friday, April 29, 2011 1:13 AM
    To: SeeSat-L@satobs.org 
    Subject: Progress M10M and rocket
    
    Captured Progress M10M this evening, lucky that clouds broke just on time. Frames look very nice, will process tomorrow!
    Progress M10M pass was WNW-SSW, 45 deg SSE culm, distance 333 km, angular velocity: 1.37°/s, so has already climbed, better to track. 
    Progress M10M rocket pass was WNW-SSE, 56 deg SW culm, distance 212 km, angular velocity: 2.16°/s, very difficult to track but got frames! 
    
    Ralf
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