Decay watch: January 21

Alan Pickup (alan@wingar.demon.co.uk)
Thu, 21 Jan 1999 20:45:59 +0000

SpaceCom have updated the decay notice for the (Japanese) ETS-7 H2
rocket:

Object                            Notice issued    Predicted decay
                                       UTC              UTC

#25065 = ETS-7 H2 r               Jan 20 23:28     Jan 27 17:19 +-4d

               -------------------------------

My current prediction for the ETS-7 H2 rocket is for its decay at
January 27.5 +-1.2 days. The latest elset is:

ETS-7 H2 r      13.5  2.5  0.0  3.0 v            267 x 244 km
1 25065U 97074C   99021.72024748  .00993266  00000-0  11778-2 0  4165
2 25065  34.5274 143.6430 0017170 294.0422  65.8959 16.07001711 65338

               -------------------------------

As Harro has already reported in another thread, SpaceCom has released
the final elset for yesterday's decayer:

Irid 11A CZ r   10.0  3.0  0.0  3.5 d            137 x 105 km
1 25579U 98074C   99020.82028691  .30965950 -13023-5  11712-3 0  1373
2 25579  86.3364 181.2047 0024630  54.8491 305.6288 16.57138475  5104

I surmise that this decayed near, or possibly just north of, the
following northbound crossing of the equator at 21:08 UTC near 104
degrees east longitude - another one for the South China Sea which must
be filling up nicely :) This is a few minutes later than Harro's
estimate and a few minutes earlier than SpaceCom's.


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