Obs 04 June 2005

From: Greg Roberts (grr@iafrica.com)
Date: Sun Jun 05 2005 - 11:03:00 EDT

  • Next message: Ted Molczan: "RE: Obs 04 June 2005"

    Observations 04 June 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.
    
    Used with 145mm focal length f/2.5 lens and easily showing 12th
    magnitude stars in "real time" on the monitor.
    
    Site 0433 : Longitude 18.51294 deg East, Latitude  33.94058 deg S,
    Elevation 10 metres - situated in Pinelands (Cape Town), South Africa
    
    
    
    27168 02 001A   0433 F 20050604175037800 56 15 1051011+043444 39  +095 05
    27938 03 041B   0433 F 20050604181214700 56 15 0923239-002155 39  +090 05
    90013 03 564A   0433 F 20050604162407000 56 15 1224413+060643 39  +085 05
    90018 03 790A   0433 F 20050604172402000 56 15 1524035+050319 39  +130 05
    90018 03 790A   0433 F 20050604172402000 56 15 1524029+050047 39  +130 05
    90031 05 546A   0433 F 20050604172402000 56 15 1518541+051456 39  +100 05
    90031 05 546A   0433 F 20050604175411700 56 15 1549059+050914 39  +100 05
    90033 05 558A   0433 F 20050604180125200 56 15 1119453+071323 39  +095 05
    90034 05 592A   0433 F 20050604192112700 56 15 1417402+061601 39  +110 05
    91031 05 638X   0433 F 20050604181716500 56 15 1620322+010546 39  +085 05
    92032 05 638A   0433 F 20050604162540100 56 15 1422477+070306 39  +084 05
    92032 05 638A   0433 F 20050604171655200 56 15 1512441+034256 39  +078 05
    92032 05 638A   0433 F 20050604182837800 56 15 1623059-005122 39  +075 05
    93030 05 629C   0433 F 20050604172202500 56 15 1524446+025026 39  +090 05
    93030 05 629C   0433 F 20050604182958700 56 15 1632551+025323 39  +087 05
    
    TOO CLOSE FOR COMFORT !!:
    -------------------------
    
    27380 02 007A   0433 F 20050604173009500 56 15 1443516+051627 39  +095 05
    27380 02 007A   0433 F 20050604191333000 56 15 1627292+051548 39  +090 05
    91027 05 625A   0433 F 20050604173009500 56 15 1443551+051700 39  +100 05
    91027 05 625A   0433 F 20050604191333000 56 15 1627348+051623 39  +095 05
    
    
    UNKNOWN 4th magnitude LEO:
    --------------------------
    91032 05 155LEO 0433 F 20050604181521800 56 15 1003555+115322 39  +040 05
    91032 05 155LEO 0433 F 20050604181523700 56 15 1004300+113408 39  +040 05
    91032 05 155LEO 0433 F 20050604181525500 56 15 1004597+111518 39  +040 05
    
    
    Notes:
    -------
    
    (1) After two weeks of rain and continual cloud it cleared- well,sort of.
        I spent most of the time dodging clouds and light showers and
        eventually gave up in disgust after which it cleared completely but
        I was done for the night!
    
    (2) No sign of 90016 which I rate as an easy object. I did a 1.5 degree
        search around the predicted position but no sign of it. Has it been
        moved again?  I tried the predicted location three times during the
        session.
    
    (3) Too close for comfort- if I was one of the operators of INTELSAT 904
        (#27380) I would be doing it in my pants because of the proximity of
        #91027.
    
        They were almost touching the first observation but by the time of
        the second observation they had increased the seperation slightly.
        Since I am not sure which is INTELSAT 904 or 91027 I have reported
        both objects but I think I have identified them correctly.
    
    (4) The object 90018 is suspect. It appeared to produce a short
        trail in the 400 seconds integration and I dont know which is the
        start or end so gave the positions of each end. It is somewhat "off-
        track" from where 90018 was predicted. At magnitude 13 or so its
        possible it could be a ccd blemish/blotch etc but it does look
        like a short trail, so treat with suspicion.
    
    (5) The bright unknown crossed the corner of my field of view whilst
        checking the calibration of the mount against Regulus. It was steady
        and fairly fast. I can find no match in my element database. Guess
        its another unknown that will escape unless someone can identify it.
    
    (6) IF its clear tomorrow night I hope to track but since my location
        is now in its winter rain spell I do not really expect to get much
        observing done before early September when conditions improve.
    
    (7) Hope not too many typing errors- after measuring all day my eyes are
        all skewed and my brain is disconnected.
    
    (8) I still have a few more to measure but they are commercial geostationaries
         and leo objects-nothing exciting expected.
    
    Cheers
    Greg
    
    
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