More signals from Progress M1-3

From: Sven Grahn (svengrahn@mail.wineasy.se)
Date: Mon Aug 07 2000 - 16:19:36 PDT

  • Next message: Paul Gabriel: "obs 08 aug ut"

    Radio transmissions again detected from Progress M1-3 on 7 August 2000 in
    Sollentuna, Sweden:
    
    2303.20-2309.00 UT: CW very strong    922.75 MHz
    2303.55-2307.20 UT: FM-TM very strong 166.0 MHz
    
    This observation agrees very well with the element set just published by
    NASA OIG within the the last hour:
    
    Progress M1-3
    1 26461U 00044A   00220.88436178  .00022375  11466-4  58784-4 0    84
    2 26461  51.5783 236.1897 0018816 269.1138  90.6859 15.96465969   186
    
    This elset gives: h=271.4-296.5 km, Nodal period 90.137 minutes.
    
    It took OIG more than 24 hours after launch to come up with a valid element
    set, but for Progress flights the simple rules of thumb are that:
    
    * Rough reception times in Northern Europe the first day are computed by
    adding multiples of 90 minutes to the launch time.
    
    * Reception times the second day are identical to the first day - if all
    maneuevers are successful.
    
    These rules were true this time also!
    
    Sven Grahn
    
    
    ----------------------------------------------------
    Mr Sven Grahn | Kettering Group
    Rattviksvagen 44, S-192 71 Sollentuna, Sweden
    Tel: +46 8 7541904, svengrahn@wineasy.se
    http://www.users.wineasy.se/svengrahn/
    ----------------------------------------------------
    
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    This archive was generated by hypermail 2b29 : Mon Aug 07 2000 - 16:20:20 PDT