Decay watch: Jun 2

Alan Pickup (alan@wingar.demon.co.uk)
Wed, 2 Jun 1999 20:25:28 +0100

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Object: #20055 = 89- 43 D = Molniya 3-35 r2

Decay predictions:
Source   Prediction made    Predicted decay at      Latitude Longitude
               UTC                UTC                  deg      deg

SpaceCom   May 30 09:12     Jun  5 07:36 +-4d        14.4 S   136.3 E
SpaceCom   May 31 00:19     Jun  3 17:01 +-2d        21.3 S   161.6 E
SpaceCom   Jun  1 00:04     Jun  3 17:21 +-2d         4.4 S   165.5 E
SpaceCom   Jun  1 23:58     Jun  4 00:28 +-1d        55.3 S    13.5 E

SatEvo     May 30 13:30     Jun  3 15:00 +-2d
SatEvo     May 31 18:55     Jun  4 01:00 +-2d
SatEvo     Jun  1 19:10     Jun  4 00:24 +-18h <-- omitted yesterday
SatEvo     Jun  2 19:00     Jun  4 00:00 +-9h

Latest elset:
Molniya 3-35 r2                                  2821 x 85 km
1 20055U 89043D   99153.60766895  .61650873  58373-5  92844-3 0  9009
2 20055  63.4319 322.4095 1747085 246.9060 227.1658 12.52831587 56738

SatEvo prediction:
Molniya 3-35 r2                                  2261 x 83 km
1 20055U 89043D   99154.04551142  .87844142  17686+0  10688-2 0 99007
2 20055  63.3927 321.3403 1442037 246.9081  97.2688 13.23349930 56795
Molniya 3-35 r2                                  1485 x 81 km
1 20055U 89043D   99154.55597734 1.35461520  56208+0  11220-2 0 99005
2 20055  63.3428 319.9177 0980364 246.9156 102.4586 14.32689312 56860

Note: The latest elset has it 4.8 minutes early on the prediction
I posted yesterday.
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Object: #25728 = 99- 24 B = Orion 3 Delta 3 r

Decay predictions:
Source   Prediction made    Predicted decay at      Latitude Longitude
               UTC                UTC                  deg      deg

SpaceCom   Jun  1 22:01     Jun  5 22:06 +-3d         7.2 S   173.4 E
SpaceCom   Jun  2 17:20     Jun  5 16:10 +-2d        17.2 S    75.2 E

SatEvo     Jun  1 19:30     Jun  6 05:00 +-1.5d
SatEvo     Jun  2 19:15     Jun  5 23:00 +-1d

Latest elset:
Ori 3 Delta 3 r                                  586 x 145 km
1 25728U 99024B   99153.62709323  .05871525 -48973-5  88311-3 0   802
2 25728  29.4664 229.1413 0326604  91.1673 272.6520 15.67685168  4222

SatEvo prediction:
Ori 3 Delta 3 r                                  561 x 145 km
1 25728U 99024B   99154.00846150  .06133054  38276-2  83519-3 0 90809
2 25728  29.4655 226.4034 0309381  95.5542 267.9816 15.72166799  4288
Ori 3 Delta 3 r                                  525 x 143 km
1 25728U 99024B   99154.51518208  .06802517  50765-2  79227-3 0 90800
2 25728  29.4642 222.7367 0284595 101.4296 261.7800 15.78705353  4369
Ori 3 Delta 3 r                                  486 x 142 km
1 25728U 99024B   99155.01967811  .07718353  72702-2  74908-3 0 90805
2 25728  29.4628 219.0498 0257114 107.3377 255.4907 15.86003987  4449

Note: After the fun at higher latitudes with the USA 144 Titan r, here 
is one for the more latitudinally challenged SeeSaters. It is ~530 km
high when it enters eclipse near 24 deg S latitude at about 18:00 local 
time. However, it pops out of eclipse near perigee (at only ~155 km) at 
29 degrees N latitude around 04:00 local time.
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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/