Observations 27 Feb 2005

From: Greg Roberts (grr@iafrica.com)
Date: Mon Feb 28 2005 - 11:06:03 EST

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    Observations 27 Feb 2005
    ---------------------------------
    
    Cosatrak 1 (Computerised satellite Tracking System).
    MINTRON low light level CCD surveillance camera (0.005 lux typical
    in non integration mode) and 0.00005 lux in STARLIGHT mode with 128
    frame integration. Due to bright sky it is not worthwhile integrating
    more than 48 frames which is equivalent to an exposure of 0.96 seconds.
    
    Used with 145mm focal length f/2.5 lens giving a field of view of
    about 2.55 x 1.86 degrees and easily showing 12th magnitude stars.
    Not the best lens optically but the most useful in terms of field
    of view and magnitude penetration.
    
    Data recorded on DVD R/W disks - will be kept for 1 month and then
    re-used - just in case any queries as Im always making mistakes!
    
    Site 0433 : Longitude 18.51294 deg East, Latitude  33.94058 deg S,
    Elevation 10 metres - situated in Pinelands (Cape Town), South Africa
    
    USUAL CLASSIFIED.TLE OBJECTS:
    
    24680 96 072A   0433 F 20050227200428500 17 15 1552125-550111 39
    24680 96 072A   0433 F 20050227200454100 17 15 1533011-545957 39
    24680 96 072A   0433 F 20050227200520700 17 15 1511249-544107 39
    24680 96 072A   0433 F 20050227200548900 17 15 1446462-535437 39
    24680 96 072A   0433 F 20050227214344100 17 15 0236379-605612 39
    22519 92 086C   0433 F 20050227211301900 17 15 0225419-414740 39
    22519 92 086C   0433 F 20050227211349000 17 15 0231496-413409 39
    22519 92 086C   0433 F 20050227211444200 17 15 0239066-411607 39
    22519 92 086C   0433 F 20050227211600500 17 15 0249038-404725 39
    
    STRAY:
    
    28353 04 021B   0433 F 20050227211335500 17 15 0228083-405811 39
    
    GEOSYNC OBJECTS IDENTIFIED:
    
    27168 02 001A   0433 F 20050227212446600 17 15 0803212+060546 39
    25049 97 071A   0433 F 20050227212446600 17 15 0806534+052540 39
    26470 00 046B   0433 F 20050227215508000 17 15 0744129+052124 39
    25311 98 024A   0433 F 20050227215508000 17 15 0744216+052411 39
    
    90017 03 780A   0433 F 20050227203004000 17 15 0725204+074410 39
    90017 03 780A   0433 F 20050227205517000 17 15 0750282+080919 39
    90017 03 780A   0433 F 20050227213506000 17 15 0830110+084404 39
    90017 03 780A   0433 F 20050227184028000 17 15 0536100+053951 39
    90017 03 780A   0433 F 20050227184028000 17 15 0536413+054932 39
    
    23712 95 060A   0433 F 20050227183618000 17 15 0542039+052742 39
    23712 95 060A   0433 F 20050227183838000 17 15 0544253+052825 39
    
    90015 03 780A   0433 F 20050227200854000 17 15 0702326+124957 39
    90015 03 780A   0433 F 20050227200920000 17 15 0659531+125632 39
    
    90013 03 564A   0433 F 20050227190837200 17 15 0846296+120621 39
    
    23839 96 020A   0433 F 20050227192951000 17 15 1038282+051122 39
    
    26762 01 018B   0433 F 20050227192617900 17 15 1007469+145157 39
    26762 01 018B   0433 F 20050227192805100 17 15 1009017+060850 39
    
    99331 95 586A   0433 F 20050227194359300 17 15 0417570+092014 39
    
    HIGH ALTITUDE UNKNOWN: (MOVING)
    
    99999 00 000A   0433 F 20050227183910400 17 15 0537407+054257 39
    99999 00 000A   0433 F 20050227183926500 17 15 0537465+054139 39
    99999 00 000A   0433 F 20050227183957100 17 15 0538035+053927 39
    99999 00 000A   0433 F 20050227184018000 17 15 0538193+053813 39
    99999 00 000A   0433 F 20050227184033900 17 15 0538236+053637 39
    99999 00 000A   0433 F 20050227184057100 17 15 0538375+053450 39
    99999 00 000A   0433 F 20050227184137400 17 15 0538598+053130 39
    
    Report:
    --------
    
    (1) The main purpose of the observing session was to continue my
        search for geostationary objects not cataloged. Conditions
        were not good due to a near full moon and drifting cirrus.
    
    (2) #28353  SL-16 R/B nice fast flasher
    
    (3) #25049  SIRIUS 2 in same field of view as MILSTAR 5 but not as
        bright.
    
    (3) #26470  NILESAT 102 in field of view when looking for #90014
                which was not found.
    
    (4) #25311  NILESAT in field of view when looking for #90014 which
                was not found.
    
    (4) #90017  2 geostationary satellites in field of view at 18h40m28s-
                dont know offhand which was #90017. Other observations
                of #90017 had single object in field of view.
    
    (5) #23712  this MAYBE DFS20 but faint - two positions of same object.
    
    (6) #90015  two objects in field of view- the first one was brighter
                and varying +11.5 to invisible. Neither objects seen when
                checked several hours later but probably due to bright
                moonlight as the moon was then up.
    
    (7) #23839  geostationary Immarsat 3-F1 - fairly bright - about 10th mag.
    
    (8) #26762  BLOCK DM-SL R/B found by accident. Observed at range of
                31,354 kms. Orbit 900 x 35725km, i = 1.19 deg, e = 0.705,
                period 643 mins. Quite bright - about 10th mag.
    
    (9) #99331  A single bright flash to about magnitude +5, duration 1.9
                seconds was observed in the field of view when looking for
                #99331. Nothing was seen in the area when integrating down
                to about magnitude +14 so it may or may not have been #99331.
    
    
    (10)#99999  Cannot find an identity for it - range about 35000kms or so.
    
    (11) I have not bothered to identify the half dozen or so LEO unpredicted
         satellites observed. May or may not do still :-))
    
    (12) I plan to observe again tuesday night concentrating on my  geostationary
           project.
    
    
    
    Cheers
    Greg
    
    
    
    
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