Re: telescopic Yoagan 6 LM rocket observation

From: Ralf Vandebergh (
Date: Tue May 11 2010 - 19:36:20 UTC

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    For clearity; the animations show 10 seconds of the pass in a
    much shorter time, because only a few selected frames within these
    10 seconds were used (time-lapse)
      ----- Original Message ----- 
      From: Ralf Vandebergh 
      Sent: Tuesday, May 11, 2010 9:26 PM
      Subject: telescopic Yoagan 6 LM rocket observation
      Hi all,
      Hereby the results from a telescopic imaging session on Apr 30 of a favorable 
      pass of Yoagan 6 LM rocket (34840 2009-021-B). All frames of the session 
      show a well defined shape.
      I have a few questions to the people who were involved earlier with 
      observing this object or anyone else who knows the answers:
      Is there any information about what part of the Long March 2C rocket we
      have here? According to the data it should be a 4 m x 2.5 m object.
      Is it a fairing? The images tend to show something like that, but can
      also just be an impression.
      Is there any information available about evidence of tumbling of this rocket?
      The animations on the page show a part of the pass (after culm) of a duration
      of 10 seconds. They strongly tend to show a tumbling effect, but this can also
      just be an illusion due to seeing effects.
      Thanks in advance,
      Ralf Vandebergh
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