Morning Gerhard
Thanks for the info. I downloaded the images and have the following to
report/comment:
Field of view 20.34 x 13.32 degrees, images tilted about -6 degrees with respect
to horizon.
As to identifications:
Image 18:24:16 SAST SL-14R/B #16987 86074B range 1027 kms, predicted mag
+3.3
Image 18:34:58 SAST Bottom streak is Atlas Centaur rocket 81050B #12497 mag
+6.2 range 4846 kms
Trail top image looks like 90070 running
about 6 minutes late, range ~ 1965 Kms,mag +4.8
Image 18:37:50 SAST - called unknown 061125 - Top trail is Globalstar MO53
99043D,#25886,mag +5.4,
range 2060 kms
- bottom trail SK-8 R/B 75074B #08073, mag
+5.4, range 1685 kms
Image 18:39:42 SAST - Atlas Centaur rocket 80087B #12069, range 2670 kms, mag
+4.9
These are predicted magnitudes.
The interestesting bit is 90070 apparently running about 6 minutes late. This
has a very low perigee- around 230 km if
memory correct. I see that it was last observed on day 101 - which is around 11
April so your observation at least indicates how late it will be running. Using
the INT element set it was predicted around 16:29:08 UT - NOW if I had some
clear weather this would be very useful info but maybe some of the other
observers will be able to catch it so the elements could be updated. How
accurate do you estimate are the times you gave - is 18:34:58 SAST the beginning
or end of exposure and you said you were using 10 second exposures. Even with a
time uncertainty of a few seconds I think Mike/Ted will be able to use your
observation to close in on 90070. (hint:-))
I did an approx position determination and get the following:
Start of trail RA 15h05m49s Dec -18d56'46" (J2000)
End of trail RA 15h11m36s Dec -18d54'47"
Your geographical location: long +30.1171 deg(east), lat 26.0671 deg(south)
Well down Gerhard! Only one suggestion - start using UT instead of SAST in
your reports :-))
Cheers
Greg
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