Re: New decayers: #24813 and #24814

Alan Pickup (alan@wingar.demon.co.uk)
Mon, 26 May 1997 22:07:12 +0100

The latest elsets from OIG for these are:
Telstar 5 Proton r                               213 x 203 km
1 24813U 97026B   97146.42456868  .00744888  11965-4  26322-3 0   109
2 24813  51.5930 137.1128 0007996 291.6223  68.3666 16.24299832   283
Telstar 5 deb                                    188 x 183 km
1 24814U 97026C   97146.67016305  .06489180  12139-4  10711-2 0   177
2 24814  51.5898 135.7429 0003942 203.1720 156.9506 16.32589052   329

Thanks to Phillip Clark for the info:
> Regarding the query concerning debris from the recent Proton-K launch, 
> object B is the third stage, mass about 4 tonnes, while I believe that 
> object C is a hollow cylinder, mass about 800 kg which surrounds the 
> Block DM class fourth stage until separation after LEO is reached.

I'll stop calling object C a "platform" and instead call it "debris" on
the understanding that it is as Phillip describes.

The above elsets show the objects running 5.3 and 11.6 seconds late
respectively against the SatEvo predictions I posted yesterday.

New predictions for the rocket (decay June 1?):
Telstar 5 Proton r                               210 x 200 km
1 24813U 97026B   97147.03956282  .00897602  45279-3  28719-3 0 90100
2 24813  51.5927 133.7078 0007571 294.1702  65.7506 16.25385956   383
Telstar 5 Proton r                               207 x 198 km
1 24813U 97026B   97147.53126883  .00970509  53930-3  28686-3 0 90105
2 24813  51.5924 130.9815 0007212 296.2103  63.7155 16.26303469   465
Telstar 5 Proton r                               204 x 195 km
1 24813U 97026B   97148.02268583  .01058165  65447-3  28651-3 0 90108
2 24813  51.5921 128.2530 0006836 298.2520  61.6789 16.27299000   547

The C object may decay at about May 27.14. Predicted elsets to decay:
Telstar 5 deb                                    184 x 179 km
1 24814U 97026C   97146.73131407  .09620416  64607-1  13616-2 0 90177
2 24814  51.5895 135.4000 0003676 203.4286 156.5551 16.34063079   337
Telstar 5 deb                                    181 x 176 km
1 24814U 97026C   97146.79244478  .10969457  86398-1  13596-2 0 90177
2 24814  51.5891 135.0568 0003390 203.6855 156.3008 16.35317730   348
Telstar 5 deb                                    177 x 172 km
1 24814U 97026C   97146.85352518  .12829231  12216+0  13570-2 0 90174
2 24814  51.5887 134.7131 0003078 203.9427 156.0429 16.36764692   355
Telstar 5 deb                                    172 x 168 km
1 24814U 97026C   97146.91454681  .15579294  18755+0  13537-2 0 90176
2 24814  51.5883 134.3690 0002731 204.2003 155.7869 16.38485951   361
Telstar 5 deb                                    166 x 163 km
1 24814U 97026C   97146.97549705  .20092580  32307+0  13471-2 0 90174
2 24814  51.5877 134.0243 0002332 204.4583 155.5306 16.40634720   375
Telstar 5 deb                                    158 x 155 km
1 24814U 97026C   97147.03635492  .29057681  72951+0  13156-2 0 90172
2 24814  51.5869 133.6790 0001851 204.7168 155.2743 16.43549711   386
Telstar 5 deb                                    144 x 143 km
1 24814U 97026C   97147.09707606  .59011383  33802+1  92863-3 0 90173
2 24814  51.5858 133.3326 0001190 204.9761 155.0181 16.48418961   395

Alan
-- 
 Alan Pickup | COSPAR site 2707:  55d53m48.7s N   3d11m51.2s W  156m asl
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