Re: CZ-4C DEB 36417 Flares while in shadow - is this common ?

From: Ryan Shepperd (ryan_shepperd@yahoo.com)
Date: Thu Sep 13 2012 - 01:52:31 UTC

  • Next message: Kevin Fetter: "Telecom 2A"

    I would also find it strange for an object to flare in shadow and don't have an answer for you there other than to question if it was really in shadow.  However, regarding your last question, the space-track (NORAD) common names are not unique.  While in-tact satellites have unique names, rocket bodies and debris do not.  The rocket bodies are named by class (CZ-4C is a designation for a Chinese Long March 4C).  Debris is named after the source body name with deb appended.  For the case of rocket bodies, it's therefore possible for debris from different sources to have the same common name.  The international designation can tell you which objects are associated with the same launch.  For your case, this is 2010-009E, which means 36417 is debris from a launch of a CZ-4C that was the 9th launch in 2010 and is the 5th (the "E") object cataloged from that launch. 
    
    
    
    
    ________________________________
     From: joseph daniel <station969@hotmail.com>
    To: SEESAT <seesat-l@satobs.org> 
    Sent: Tuesday, September 11, 2012 11:13 PM
    Subject: CZ-4C DEB 36417  Flares while in shadow - is this common ?
     
    
    Spotted CZ-4C DEB - NORAD  36417 flaring last night (used Satflare to easily nail it) , around mag 
    +2.5 to +3.5 perhaps , and will do an FPAS soon , but was curious about it flaring 1 minute
    before it came out of shadow (HA & FS both confirm inside shadow) .
    
    Is this common ? If it wasn't sunlight bouncing off could it have been Venus or Jupiter or
    Capella etc or even the moon (flare lasted ~3 seconds) ?
    
    Also , did a search of Seesat's archives (thanks George) and only 1 hit from 53 weeks ago by
    Kevin Fetter  http://www.satobs.org/seesat/Sep-2010/0198.html , although Satflares newly
    expanded DB showed this report by Brad Young early this year also .
    http://www.satobs.org/seesat/Jan-2012/0228.html
    
    Also of interest was HA having 19 different NORADS for that one sat name . I'm guessing they
    all originated from one particular vehicle ?
    
    Thanks in Advance for any info ,
    gc                           
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