Optical 23 March 2012 Part 1

From: Greg Roberts (grr@telkomsa.net)
Date: Sat Mar 24 2012 - 13:32:13 UTC

  • Next message: Brad Young: "BY C 032412"

    Observations 23 March 2012 Part 1
    ------------------------------------------
    
    Cosatrak 1 (Computerised satellite Tracking System).
    
    FLI ML8300M CCD camera with mechanical shutter + Trimble GPS
    
    Used with NIKON ED AF NIKKOR 80-200mm f/2.8 telephoto lens
    set at 200mm focal length. Field of view 5.2 x 3.8 degrees,
    image scale 23.0 arc sec/pixel.
    Measured manually.
    
    Site 0433 : Longitude 18.51294 deg East, Latitude -33.94058 deg,
    Elevation 10 metres-situated in Pinelands (Cape Town),South Africa
    
    FOR CLASSFD.TLE:
    ---------------------------
    78701 10 062X   0433 G 20120323180905074 55 15 1609573-614641 39
    78701 10 062X   0433 G 20120323180937178 55 15 1522401-585131 39
    78701 10 062X   0433 G 20120323181050996 55 15 1356408-461803 39
    78701 10 062X   0433 G 20120323181116652 55 15 1335287-402531 39
    05681 71 110D   0433 G 20120323195809368 55 15 0422037-155958 39  +110 05
    05681 71 110D   0433 G 20120323195906705 55 15 0409078-270755 39  +100 05
    05681 71 110D   0433 G 20120323200004049 55 15 0349019-385307 39  +105 05
    05681 71 110D   0433 G 20120323200111787 55 15 0310161-515920 39  +095 05
    08835 76 038C   0433 G 20120323192906744 55 15 0150391-643504 39
    08835 76 038C   0433 G 20120323193008863 55 15 0240139-673502 39
    08835 76 038C   0433 G 20120323193142409 55 15 0439250-695451 39
    08835 76 038C   0433 G 20120323193257147 55 15 0638184-665241 39
    08836 76 038D   0433 G 20120323211412189 55 15 0411576-432105 39
    08836 76 038D   0433 G 20120323211453858 55 15 0432264-422438 39
    08836 76 038D   0433 G 20120323211612022 55 15 0513076-392050 39
    08836 76 038D   0433 G 20120323211653697 55 15 0535529-365221 39
    10529 77 112D   0433 G 20120323212219301 55 15 0419086-301450 39  +110 05
    10529 77 112D   0433 G 20120323212234933 55 15 0418013-313914 39  +110 05
    10529 77 112D   0433 G 20120323212255780 55 15 0416099-333211 39
    10529 77 112D   0433 G 20120323212311421 55 15 0414387-345752 39  +110 05
    10594 77 112F   0433 G 20120323175514457 55 15 0932523+142558 39
    10594 77 112F   0433 G 20120323175621843 55 15 0954142+070559 39
    10594 77 112F   0433 G 20120323175703560 55 15 1008397+021545 39
    10594 77 112F   0433 G 20120323175830180 55 15 1041142-074956 39
    10594 77 112F   0433 G 20120323213557093 55 15 0457444-232014 39
    10594 77 112F   0433 G 20120323213602299 55 15 0457326-234905 39
    10594 77 112F   0433 G 20120323213607520 55 15 0457158-241744 39
    10594 77 112F   0433 G 20120323213623145 55 15 0456357-254407 39
    10594 77 112F   0433 G 20120323213802206 55 15 0449302-351548 39
    10594 77 112F   0433 G 20120323213920916 55 15 0439141-431053 39
    10594 77 112F   0433 G 20120323214002616 55 15 0422257-462335 39
    10594 77 112F   0433 G 20120323214023462 55 15 9415548-483327 39
    
    UNKNOWNS SEEN:
    -------------------------
    UNKNOWN 1
    
    99999 99 999A   0433 G 20120323180810510 55 15 1557420-581914 39  +065 05
    99999 99 999A   0433 G 20120323180813729 55 15 1554536-582409 39  +065 05
    99999 99 999A   0433 G 20120323180816928 55 15 1551428-582910 39  +065 05
    
    1 99999U 99999A   12083.75575148 0.00000073  00000-0  50000-4 0    08
    2 99999  97.6497 113.2326 0008261 312.8581   0.0000 14.81983925    02
    
    
    UNKNOWN 2
    
    99990 99 990A   0433 G 20120323213557093 55 15 0500423-215941 39
    99990 99 990A   0433 G 20120323213602299 55 15 0500190-222715 39
    99990 99 990A   0433 G 20120323213607520 55 15 0459501-225440 39
    99990 99 990A   0433 G 20120323213623145 55 15 0458495-241934 39
    99990 99 990A   0433 G 20120323213802206 55 15 0448046-335202 39
    99990 99 990A   0433 G 20120323213920916 55 15 0433337-415909 39
    99990 99 990A   0433 G 20120323214002616 55 15 0431302-472609 39
    99990 99 990A   0433 G 20120323214023462 55 15 0426474-493323 39
    
    1 99990U 99990A   12083.90304933 0.00000073  00000-0  50000-4 0    09
    2 99990  62.7480 287.7088 0007658  56.8203 180.0000 11.97439485    05
    
    Approx orbits determined using Scott Campbells ELFIND, taking first and
    last positions measured.
    
    NOTES:
    --------
    (1) After a prolonged spell of cirrus cloud finally cleared.
    
    (2) Two unknowns found so far.
    
        Unknown 1 found whilst waiting for 78701.
    
        Unknown 2 found whilst tracking second pass of #10594 NOSS 2(F).
        Initially was not sure which was NOSS 2(F) as both close together and
        similar appearance. Only after tracking for several minutes was
        it possible to decide which is which as the unknown slowly deviated
        from the predicted track of NOSS 2(F) -- maybe its a NOSS object-
        possibly about half mag brighter than #10594.
    
    (3) Still about 15 classified satellites to measure - very slow when
        using the Nikon lens as approximately 50-70 images taken for each
        classified leo object at about 4 second intervals whilst the mount
        automatically tracks on the satellite. I then examine each image for
        objects and finally measure about every 15th image, plus the images
        which contain strays if they look interesting.
    
    (3) Back to measuring - urgggghhhhh :-((((
    
    Cheers
    Greg
    
    
    _______________________________________________
    Seesat-l mailing list
    http://mailman.satobs.org/mailman/listinfo/seesat-l
    



    This archive was generated by hypermail 2b29 : Sat Mar 24 2012 - 13:31:23 UTC