Optical 15 March 2007

From: Greg Roberts (grr@telkomsa.net)
Date: Fri Mar 16 2007 - 10:43:19 EDT

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    Observations 15 Mar 2007:
    --------------------------------------
    
    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 200mm focal length f/3.5 lens,integrating for 96 frames
    which is equivalent to an exposure of 1.92 seconds per image.
    
    Site 0433 : Longitude 18.51294 deg East, Latitude  33.94058 deg S,
    Elevation 10 metres - situated in Pinelands (Cape Town), South Africa
    
    
    For CLASSFD.TLE:
    -------------------------------
    
    23533 95 015A   0433 G 20070315173356300 56 15 1205270-734420 39  +060 05
    23533 95 015A   0433 G 20070315173512300 56 15 0838550-624608 39  +050 05
    23533 95 015A   0433 G 20070315173708800 56 15 0640500-135328 39  +055 05
    27168 02 001A   0433 G 20070315180605800 56 15 0744030+070205 39  +090 05
    25725 99 023B   0433 G 20070315180730400 56 15 0757030+361621 39  +050 05
    25725 99 023B   0433 G 20070315180928900 56 15 0836000+300239 39  +050 05
    25725 99 023B   0433 G 20070315181132900 56 15 0912000+233645 39  +050 05
    14139 83 060C   0433 G 20070315184027100 56 15 1401090-782656 39  +100 05
    14139 83 060C   0433 G 20070315184108500 56 15 1156380-775647 39  +090 05
    14139 83 060C   0433 G 20070315184212400 56 15 0933020-701306 39  +085 05
    14139 83 060C   0433 G 20070315184337000 56 15 0814300-502514 39  +080 05
    21775 91 076A   0433 G 20070315185004500 56 15 0100100-565234 39  +085 05
    21775 91 076A   0433 G 20070315185128300 56 15 0035450-634639 39  +080 05
    21775 91 076A   0433 G 20070315185302600 56 15 2344010-710238 39  +085 05
    23947 96 038C   0433 G 20070315185433700 56 15 0529050+225205 39  +100 05
    23947 96 038C   0433 G 20070315185641000 56 15 0531550+214815 39  +105 05
    23947 96 038C   0433 G 20070315185923700 56 15 0535330+202520 39  +105 05
    22639 93 026B   0433 G 20070315193441100 56 15 2027010-741525 39  +075 05
    22639 93 026B   0433 G 20070315193459600 56 15 1955090-760745 39  +070 05
    28546 04 050B   0433 G 20070315175632300 56 15 0352100-005848 39  +095 05
    28546 04 050B   0433 G 20070315175851900 56 15 0358250-011318 39  +088 05
    28546 04 050B   0433 G 20070315180254000 56 15 0409210-013737 39  +098 05
    90013 03 564A   0433 G 20070315174613800 56 15 0827350+124847 39  +080 05
    90006 00 596A   0433 G 20070315183815600 56 15 2042460-760423 39  +075 05
    90006 00 596A   0433 G 20070315184509100 56 15 1301230-510237 39  +070 05
    90006 00 596A   0433 G 20070315184626200 56 15 1252090-431739 39  +075 05
    90027 04 841A   0433 G 20070315191630400 56 15 0410360-161834 39  +070 05
    90027 04 841A   0433 G 20070315191835500 56 15 0452130-081830 39  +065 05
    90027 04 841A   0433 G 20070315192238600 56 15 0548380+043445 39  +060 05
    90016 03 766A   0433 G 20070315201448700 56 15 0606510+124723 39  +105 05
    90016 03 766A   0433 G 20070315202820900 56 15 0620080+125135 39  +105 05
    90016 03 766A   0433 G 20070315203437400 56 15 0626200+125312 39  +105 05
    90016 03 766A   0433 G 20070315210001800 56 15 0651330+125530 39  +100 05
    90005 99 804A   0433 G 20070315202339000 56 15 0631480+135112 39  +115 05
    90005 99 804A   0433 G 20070315205501500 56 15 0700360+134053 39  +115 05
    90065 06 629B   0433 G 20070315204342600 56 15 2256330-734335 39  +080 05
    90065 06 629B   0433 G 20070315204521900 56 15 2045030-762123 39  +080 05
    90065 06 629B   0433 G 20070315204913500 56 15 1701050-643718 39  +085 05
    90050 05 558C   0433 G 20070315211126800 56 15 1313580+042903 39  +110 05
    90050 05 558C   0433 G 20070315211608900 56 15 1318260+041014 39  +105 05
    
    
    Strays seen:
    -----------------
    Delta 1 R/B
    11636 79 101B   0433 G 20070315195643900 56 15 0745590+172606 39  +065 05
    
    
    Old "New" Unknowns:
    --------------------------------
    
    91096 07 056GEO 0433 G 20070315182933800 56 15 1044220+032355 39  +110 05
    91096 07 056GEO 0433 G 20070315183045700 56 15 1045330+031958 39  +105 05
    91096 07 056GEO 0433 G 20070315183251700 56 15 1047350+031325 39  +105 05
    91097 07 058GEO 0433 G 20070315210232100 56 15 1351540-042340 39  +120 05
    91097 07 058GEO 0433 G 20070315210527400 56 15 1354480-043145 39  +125 05
    91097 07 058GEO 0433 G 20070315210936100 56 15 1358590-044108 39  +120 05
    91099 07 071GEO 0433 G 20070315195438000 56 15 0746210+165334 39  +065 05
    91100 07 071GEO 0433 G 20070315181301300 56 15 0510300+171459 39  +105 05
    91100 07 071GEO 0433 G 20070315181630000 56 15 0514010+171043 39  +101 05
    91100 07 071GEO 0433 G 20070315181915400 56 15 0516490+170653 39  +107 05
    
    
    Notes:
    --------
    (1) Despite fair amount of drifting cloud was a rewarding evening.
    
    (2) #91096 variable - could only see a few flashes- much easier with
        the 6-inch scope
    
    (3) Del4Dem #28546 variable but easy, range 20600 kilometres.
    
    (4) #91100 variable - could only see a few flashes.
    
    (5) #14139 (83060C) was quite easy and as bright as magnitude +8-
        was a very high elevation pass.
    
    (6) #21775  briefly flashed to about mag 6.5.
    
    (7) #90008 variable but at no time invisible.
    
    (8) #90027 flared to mag +3 for a few seconds.
    
    (9) #90016 could not be found at predicted position so did a spiral
        5 deg search about predicted point and found the satellite west
        of predicted position and lower in elevation so the satellite is
        drifting west. Found #90005 during this search by accident.
    
    (10)#91099 was difficult- all I saw was one very bright flash to about
        mag +6.5 which lasted about 2-3 seconds or so.
    
    (11)#91097 , although faint, was visible for about 75% of its variability
        range - no flashing seen.
    
    (12)#90050 - think its the first time Ive seen it - its a drifter - was
        flashing with a fairly short period after exiting out of eclipse.
    
    (13)#90041 tried - one flash seen that matches position but I strongly
        suspect it was a cosmic ray event so not reported.
    
    (14)Next tracking session sunday night, most probably with the 6-inch
        looking for high altitude objects.
    
    Cheers
    Greg
    
    
    
    
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    This archive was generated by hypermail 2b29 : Fri Mar 16 2007 - 10:43:03 EDT