Re: Decay watch: Iridium 69 rocket
Mike McCants (mikem@freeside.fc.net)
Sat, 6 Jun 1998 13:16:36 -0500 (CDT)
Alan Pickup posted:
>SatEvo predicted elsets:
>
>Iridm 69 CZ r 10.0 3.0 0.0 4.5 d 224 x 145 km
>1 25321U 98026C 98157.53294907 .06279723 20866-1 33385-3 0 91228
>2 25321 86.3276 276.1414 0059745 27.8968 332.4223 16.33002964 5549
OIG now has:
1 25321U 98026C 98157.53316514 .04656621 -12753-5 24964-3 0 1282
2 25321 86.3251 276.1454 0066110 28.0528 332.4329 16.31686366 5544
This is about 20 seconds later than Alan's predicted elset and has a
lower mean motion and lower drag.
OIG also has:
1 25321U 98026C 98157.65577308 .04978518 -12678-5 23286-3 0 1290
2 25321 86.3307 276.0712 0063185 26.8933 333.5695 16.33002655 5562
This continues the trend. I believe a re-entry near 08:00UT over
Texas or the Midwest is now very likely.
Rob Matson wrote:
>The next rev takes the rocket body over Mexico, Texas, Oklahoma, Kansas,
>eastern Nebraska, and the border of Minnesota with the Dakotas from about
>2:57am CDT to 3:03am CDT.
Here is the lat, long of the ground track:
** 98 Jun 7 Sun morning **
U HGT HR MN REVS LAT Long (West)
20 80 7 58 12.0 20.8 -97.9
24 80 7 59 12.0 25.0 -97.9
29 81 8 0 12.0 29.1 -97.8
33 82 8 1 12.0 33.3 -97.7
37 84 8 2 12.0 37.4 -97.5
41 85 8 3 12.0 41.5 -97.4
45 87 8 4 12.1 45.7 -97.1
49 88 8 5 12.1 49.8 -96.8
I'm at 30.30, -97.76, so it's going directly over me if it's
in the process of re-entering at 08:00UT.
Mike McCants
Austin, Tx