As Harro Zimmer has mentioned, SpaceCom's final decay notice for #26627,
the Sirius 3 Proton rocket, is identical (except for the time of issue)
with that for the Proton 3rd stage casing (the "platform"). Indeed, as I
say in my updated Decay Watch page...
_____________________________________________________________________
Object: #26627 = 00- 77 B = Sirius 3 Proton rocket
Final decay analyses:
Source Prediction made Predicted decay at Latitude Longitude
UTC UTC deg deg
SpaceCom Dec 1 16:49 Dec 1 09:50 +-27m 16.0 S 13.4 E
SatEvo Dec 1 22:55 Dec 1 09:37 +-2h 19.8 N 1.5 W
Final elsets:
Sirius 3 Proton r 152 x 127 km
1 26627U 00077B 00336.25340585 .26278072 77560-5 24978-3 0 78
2 26627 64.8420 43.5902 0018695 102.9841 256.5543 16.49920989 70
Sirius 3 Proton r 156 x 126 km
1 26627U 00077B 00336.25357267 .08267693 81149-5 77512-4 0 82
2 26627 64.8383 43.5732 0023225 2.8407 357.1208 16.49494075 78
Note: I find it impossible to fit a satisfactory orbital evolution
through the released elsets for this, some of which may be confused
with #26628, the associated casing. What I have settled on is a very
uncertain evolution that ends:
Sirius 3 Proton r 135 x 116 km
1 26627U 00077B 00336.31399344 .36193360 10020+1 17172-3 0 90079
2 26627 64.8408 43.3512 0014478 102.9570 257.2048 16.55424124 81
Sirius 3 Proton r 113 x 104 km
1 26627U 00077B 00336.37429385 1.27213385 50000+2 29326-3 0 90072
2 26627 64.8389 43.1117 0007339 102.9299 257.1521 16.61889627 90
with decay while southbound over the Sahara of NW Africa. I note
that the final decay notice for this is identical with that for the
casing - further evidence that the two were confused.
_____________________________________________________________________
Object: #26628 = 00- 77 C = Sirius 3 Proton casing (aka "platform")
Final decay analyses:
Source Prediction made Predicted decay at Latitude Longitude
UTC UTC deg deg
SpaceCom Dec 1 14:04 Dec 1 09:50 +-27m 16.0 S 13.4 E
SatEvo Dec 1 23:20 Dec 1 09:48 +-20m 20.0 S 15.1 E
Final elset:
Sirius 3 Proton casing 128 x 113 km
1 26628U 00077C 00336.37452757 .36046293 79805-5 13838-3 0 95
2 26628 64.8558 43.0736 0011398 277.1736 82.8568 16.57342152 92
Note: Although this may have been confused with the rocket, the elsets
released for this are much more self-consistent. Like SpaceCom, I
suspect that this decayed a little beyond the southbound equator
crossing on the orbit described by the final elset. I put decay over
Namibia but note that it might have passed over Casablanca, Morocco, at
09:34 UTC, Lagos, Nigeria, at 09:41 and between Cape Town and Port
Elizabeth, S Africa, at 09:52.
_____________________________________________________________________
Alan
--
Alan Pickup / COSPAR 2707: 55d53m48.7s N 3d11m51.2s W 156m asl
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 : Fri Dec 01 2000 - 15:54:25 PST