Observations 06 June 2006:
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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 100mm focal length f/1.8 lens,integrating for 128 frames
which is equivalent to an exposure of 2.56 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
Not a good night - bright moon and thin cirrus
For CLASSFD.TLE
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90027 04 841A 0433 P 20060606163723400 56 15 1000300+314604 39 +075 05
90027 04 841A 0433 P 20060606163736400 56 15 1001005+315441 39 +075 05
90027 04 841A 0433 P 20060606163825800 56 15 1002546+322643 39 +075 05
90027 04 841A 0433 P 20060606164016800 56 15 1007081+333305 39 +080 05
90027 04 841A 0433 P 20060606164110600 56 15 1009084+340709 39 +080 05
90004 99 750A 0433 P 20060606181038600 56 15 1600080-705223 39 +078 05
90004 99 750A 0433 P 20060606181041100 56 15 1604434-705652 39 +090 05
90004 99 750A 0433 P 20060606181043500 56 15 1609225-710131 39 +080 05
90004 99 750A 0433 P 20060606181045900 56 15 1613254-710418 39 +090 05
90004 99 750A 0433 P 20060606181048300 56 15 1618328-710819 39 +084 05
Strays seen:
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Meteor 2-10 steady
14452 83 109A 0433 P 20060606172858100 56 15 1121404+060110 39 +055 05
Feng Yun 1A Rkt variable
19468 88 080B 0433 P 20060606172630500 56 15 1105185+050559 39 +080 05
Iridium 32 steady
24945 97 051B 0433 P 20060606170350100 56 15 1059252+062456 39 +055 05
Cosmos 2251 rkt variable
24945 97 051B 0433 P 20060606171443200 56 15 1109022+064343 39 +085 05
Yet another unknown !?
--------------------------
91070 06 157MEO 0433 P 20060606174234100 56 15 1004282+124759 39 +080 05
91070 06 157MEO 0433 P 20060606174235900 56 15 1005158+125820 39 +080 05
91070 06 157MEO 0433 P 20060606174237700 56 15 1005584+130659 39 +081 05
91070 06 157MEO 0433 P 20060606174239500 56 15 1006413+131658 39 +081 05
91070 06 157MEO 0433 P 20060606174241300 56 15 1007211+132609 39 +082 05
91070 06 157MEO 0433 P 20060606174243100 56 15 1008033+133521 39 +083 05
91070 06 157MEO 0433 P 20060606174244900 56 15 1008510+134423 39 +085 05
Notes:
-------
(1) Last possible observation of #90027 for me till next "season".Now
twilight sky too bright.
(2) #90004 located thanks to Ivan Artner's radio observations.Using
doppler observations of the satellites transmitter he is able to
determine the time of closest aproach (TCA) and compare this against
what is predicted to determine the "error" in the prediction. He
informed me that he found the satellite to be running about 13
minutes early. I found the satellite with no problems running about
11 min 18 sec early on SDP4 predictions for this object. Now
that this satellite is "out the way" Ill now go for the next one
currently visible (#90028) and for which Art has determined the
error. To make matters more interesting Art has picked up signals
which do not match candidates in CLASSFD.TLE so there are
possibly still more satellites to be found - as if we havent got
enough!
(3) Another possible unknown sighted crossing edge of field of view.
This was essentially steady with maybe a small variation in
magnitude. Looks like a low inclination object. It is becoming
increasingly obvious that there are a lot of large objects not
catalogued,most of them in low inclination orbits. Im not looking
for them - they find me!
(4) Many thanks to Ed Cannon for his comments recently ( 1st June -
"Re Current lost unknown" ) - identification of all these unknowns
is beyond me so its up to our experts Ted, Mike and others. Im
merely an observer/experimenter/doddera .
Cheers
Greg
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