SpaceCom has posted the first decay notice for #26889 = SimpleSat. Here
is a summary of the updated notices on my Decay Watch page. Look there
for predicted elsets.
_____________________________________________________________________
Object: #22013 = 92- 38 B = Sampex Scout rocket
Decay predictions:
Source Prediction made Predicted decay at Latitude Longitude
UTC UTC deg deg
SpaceCom Jan 26 03:44 Jan 28 03:35 +-1d 71.1 N 26.1 E
SatEvo Jan 26 13:25 Jan 28 02:18 +-12h
Latest elset:
Sampex r 3.0 0.0 0.0 6.0 d 0.89 230 x 221 km
1 22013U 92038B 02026.22362589 .03885573 -10198-5 24223-2 0 492
2 22013 81.6082 53.9235 0007406 149.2040 210.9685 16.17839296524216
_____________________________________________________________________
Object: #26625 = 00- 76 B = Anik F1 Ariane 44L rocket
Final decay analyses:
Source Prediction made Predicted decay at Latitude Longitude
UTC UTC deg deg
SpaceCom Jan 25 19:51 Jan 25 06:56 +-7m 6.0 N 142.0 E
SatEvo Jan 25 13:50 Jan 25 05:39 +-20m 1.7 N 151.4 W
Final elset:
Anik F1 Ariane 44L r 573 x 108 km
1 26625U 00076B 02025.14586410 .99999999 -32425-4 21218-2 0 6235
2 26625 6.2628 254.4046 0345676 135.5988 228.4073 15.76470076 14646
Note: SpaceCom's final notice appeared eventually, suggesting that
this survived for a further orbit although this, and the small time
uncertainty, is not supported by any further elset. My own estimate
is unchanged, though I have corrected the prediction date and decay
time accuracy that I posted yesterday - apologies for the errors. I show
this re-entering over the central Pacific on the orbit given by this
predicted elset:
Anik F1 Ariane 44L r 356 x 98 km
1 26625U 00076B 02025.20784409 4.02217002 25212+2 28994-2 0 96178
2 26625 6.2555 253.5780 0195490 136.3001 225.2641 16.17245378 14650
_____________________________________________________________________
Object: #26872 = 01- 31 B = GOES 12 Atlas 2a rocket
Decay predictions:
Source Prediction made Predicted decay at Latitude Longitude
UTC UTC deg deg
SpaceCom Jan 25 23:41 Jan 28 12:00 +-2d 13.9 N 162.6 W
SatEvo Jan 25 14:10 Jan 29 12:12 +-1.5d
Latest elsets:
GOES 12 Atlas 2a r 4834 x 113 km
1 26872U 01031B 02025.56870701 .41194541 -17830-4 33637-2 0 1059
2 26872 20.2235 115.3612 2666428 6.5638 358.2575 10.42503218 4827
GOES 12 Atlas 2a r 4200 x 118 km
1 26872U 01031B 02026.33064708 -.50575373 -54779-5 -46614-2 0 1081
2 26872 20.1876 112.4931 2390895 11.5662 53.6851 11.00638238 4890
Note: A spurious "-" seems to have crept into the drag term in the
latest elset. I have not updated my own SatEvo prediction.
_____________________________________________________________________
Object: #26889 = 01- 35 B = SimpleSat 1
Decay predictions:
Source Prediction made Predicted decay at Latitude Longitude
UTC UTC deg deg
SpaceCom Jan 26 09:18 Jan 30 03:53 +-2d 51.5 N 83.1 W
SatEvo Jan 26 13:15 Jan 30 14:18 +-1.5d
Latest elset:
SimpleSat 1 1.0 0.0 0.0 7.5 d 0.23 229 x 223 km
1 26889U 01035B 02025.84824508 .01456576 17804-2 89835-3 0 2579
2 26889 51.6199 31.2704 0004397 11.7215 348.4189 16.17759795 26454
Note: This enters eclipse while northbound near 20 deg N in the evening
and leaves eclipse southbound near 7 deg N in the morning.
_____________________________________________________________________
Alan
--
Alan Pickup / COSPAR 2707: 55.8968N 3.1989W +208m (WGS84 datum)
Edinburgh / SatEvo & elsets: http://www.wingar.demon.co.uk/satevo/
Scotland / Decay Watch: http://www.wingar.demon.co.uk/satevo/dkwatch/
*
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This archive was generated by hypermail 2b29 : Sat Jan 26 2002 - 08:38:56 EST