Re: Missing catalogue number

From: Jonathan McDowell (jcm@head.cfa.harvard.edu)
Date: Sun Dec 30 2007 - 17:18:27 UTC

  • Next message: Peter Wakelin: "SATOBS 2007 December 29-30"

    George, Kevin: (and our Russian friends!)
     Kosmos-2434 was, I think, a light payload for the Proton-M/Briz-M.
    I haven't crunched the numbers... it was put first in
    a 274 x 4991 km x 48.8 deg orbit, then in a 415 x 35534 km x 46 deg
    orbit which is similar to the usual Proton/Blok-DM transfer orbit,
    and object 32374 was left in this orbit. Then it later turned up
    in GEO. I am assuming that object 32374 is the DTB (additional propellant
    tank) from the Briz-M, and that a single long circ burn by the Briz-M
    put the payload in GEO. If so, we should expect the Briz-M to be
    found in a GEO-like orbit with a period of 1434-1440 min or so,
    and clearly 32375 is being reserved for this. The profile is similar
    to the 2001-14 Ekran/Proton-M/Briz-M launch which left the Briz-M in
    a higher 1469 min orbit from which the payload descended... maybe that's
    why they haven't found it yet.
    
     Jonathan
    
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