Apologies for being otherwise engaged and unable to update my Decay
Watch page yesterday. There should be a full update later today but,
meantime, here is a summary of my final notice for yesterday's Iridium
27 re-entry.
_____________________________________________________________________
Object: #24947 = 97- 51 D = Iridium 27 tum
Final decay analyses:
Source Prediction made Predicted decay at Latitude Longitude
UTC UTC deg deg
SpaceCom Feb 1 08:04 Feb 1 05:27 +-59m 62.0 N 138.0 W
SatEvo Feb 2 12:10 Feb 1 05:13 -10m+40m 28.4 N 140.7 W
Final elset:
Iridium 27 tum 4.0 1.8 0.0 6.5 d 7.6 149 x 133 km
1 24947U 97051D 02032.15210057 .32769801 -16110-5 38864-3 0 2071
2 24947 86.5496 66.9658 0012539 303.2506 57.0943 16.49426621242978
Note: The final elset has this running 23 sec early against the
prediction I posted the day before, though the elset indicates a
more eccentric orbit than I expected. I show Iridium 27 decaying
soon after the end of the above orbit, northbound over the eastern
Pacific.
Thanks to Tony Beresford for forwarding a message from Vancouver,
Canada, that reports that the CBC radio station in Whitehorse,
Yukon, was hearing from a number of witnesses of a possible satellite
re-entry over that area. It appears that NORAD in Fairbanks, AK, are
saying that a "commercial satellite" re-entered. I have found
a brief report at
http://www.whitehorsestar.com/storyDetail.lasso?r=41118
that give a time of "around 9 last night" which corresponds to
Feb 1 ~05:00 UTC. If the satellite had still been in orbit, it should
have passed a little west of Whitehorse at 05:21 UTC. SpaceCom's decay
point is very close to the same position, albeit given a large time
uncertainty.
_____________________________________________________________________
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/
*
-----------------------------------------------------------------
Unsubscribe from SeeSat-L by sending a message with 'unsubscribe'
in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org
http://www.satellite.eu.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Sat Feb 02 2002 - 08:52:29 EST