Results observations Cosmos 2421 sat _size comparison

From: Ralf Vandebergh (
Date: Thu Apr 15 2010 - 13:05:34 UTC

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    subject: Results observations Cosmos 2421 sat _size comparison
    Here is a comparison of the object I captured as Cosmos 2421, compared to some
    elements of the ISS, the mid-radiators, as seen from approximately the same
    distance, so a real-size-comparison. This illustrates nicely its considerable
    Ralf Vandebergh
      Sent: Thursday, April 15, 2010 11:36 AM
      Subject: Results observations Cosmos 2421 sat _2010/04/05
      subject: Results observations Cosmos 2421 satellite (2010/04/05)
      Hereby my presentation of observing results of a favorable pass of
      the suspected disintegrated Cosmos 2421 sat, orbiting at an altitude
      comparable with the ISS and subject of an important ISS-avoidance
      maneuver in 2008. 
      As I reported earlier, when inspecting the first frames of the session,
      the captured object gave an impression to be pretty big, too large to
      be just a small piece of a fully fragmented satellite. 
      Interesting as well, is that Russian Space Officials have repeatedly
      denied that this satellite exploded at all. 
      I would keep the question open, but at least my own impression is
      that the satellite shows in the recent images too much size and shape
      to be fragmented, especially if you can make out clearly its solar panels:
      Best regards,
      Ralf Vandebergh
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