Re: Is 07042A 32062 CBERS 2B tumbling?

From: Bob Christy (bob@zarya.info)
Date: Wed May 04 2011 - 10:05:23 UTC

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    CBERS 2B suffered a systems failure 2010 March and it was switched off - 
    radio transmissions ceased at that time.
    
    It was three-axis stabilised so, without control, it is highly likely to 
    have developed a tumble.
    
    Flarescan be explained by it being a rectangular box with a single, 
    flat, solar panel at right angles to one of the faces of the box. 
    There's an illustration here: 
    http://www.inpe.br/noticias/galeria_imagens/concep_artistica_cbers2.jpg
    
    Bob Christy
    
    On 04/05/2011 10:44, Bram Dorreman wrote:
    > During two observation sessions I checked mentioned satellite.
    > At first I thought I saw a flare.
    > Last night I saw this object unintentionally and followed it.
    > The I noticed several maxima.
    >
    > I checked Russell Eberst's observations of March and April and did not
    > find any report of this object.
    >
    > In my separately sent PPAS/PNAS reports you can see I saw this
    > satellite at about the same time as
    > - 06002A 28931 ALOS (Daichi) still steady.
    > - 05017A 28649 Cartosat 1 which showed a just naked eye flare
    > otherwise I should not have seen it.
    >
    > Bram Dorreman
    > Site 4160: 51.27931 N, 5.47683 E, 35 m (WGS84)
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