Decay watch: June 17
Alan Pickup (alan@wingar.demon.co.uk)
Thu, 17 Jun 1999 20:53:57 +0100
A trip means that I'll be unable to post further decay watch notices
until late on Sunday. My dklist.tle and select.tle files, with current
elsets for both of these, should continue to be updated, however.
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Object: #23558 = 86- 17 JE = GFZ 1
Decay predictions:
Source Prediction made Predicted decay at Latitude Longitude
UTC UTC deg deg
SpaceCom Jun 17 00:38 Jun 23 13:22 +-4d 47.6 S 5.3 W
SatEvo Jun 17 19:30 Jun 23 18:00 +-1.3d
Latest elset:
GFZ 1 0.3 0.0 0.0 11.0 d 196 x 189 km
1 23558U 86017JE 99168.59623160 .00677786 00000-0 14238-3 0 7440
2 23558 51.6178 259.7237 0005467 329.3640 30.7789 16.30074744762394
Note: Eclipse entry occurs near southern apex at about 17:30 local
time. It is better placed near its exit from the Earth's shadow
around 44 deg N at 02:30 local time.
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Object: #16686 = 86- 31 D = Molniya 3-28 r2
Decay predictions:
Source Prediction made Predicted decay at Latitude Longitude
UTC UTC deg deg
SpaceCom Jun 17 01:00 Jun 23 16:44 +-4d 46.6 S 44.7 W
SatEvo Jun 17 19:35 Jun 24 00:00 +-2d
Two rather different latest elsets, for the same rev and with identical
issue numbers:
Moln 3-28 r2 11493 x 74 km
1 16686U 86031D 99167.64898046 .20570319 16569-5 56893-3 0 4620
2 16686 61.7806 162.3989 4694180 259.4227 46.3076 6.47361880 84414
Moln 3-28 r2 11451 x 103 km
1 16686U 86031D 99167.64941926 .23993064 00000-0 28626-2 0 4625
2 16686 61.7400 162.4254 4667965 259.6673 46.4045 6.47875377 84438
Note: Omitted from my last SatEvo decay list and only added to
my dklist.tle and select.tle files yesterday (thanks to Björn Gimle
for the alert). The next elset is overdue - could this be
temporarily lost? Should be well placed near apogee in the N
hemisphere night sky.
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Alan
--
Alan Pickup | COSPAR 2707: 55d53m48.7s N 3d11m51.2s W 156m asl
Edinburgh | Tel: +44 (0)131 477 9144 Fax: +44 (0)870 0520750
Scotland | SatEvo page: http://www.wingar.demon.co.uk/satevo/