Re: TRMM a bit late
Alan Pickup (alan@wingar.demon.co.uk)
Wed, 23 Dec 1998 07:43:58 +0000
With respect to TRMM being late against predictions, Mark Hanning-Lee
<mhanning-lee@syagen.com> writes
>...
>
>These are pretty good, but a bit late; has the orbit been trimmed
>recently? Or would you say that's in the normal range of aging of TLEs?
>In general, how late can a sat be before it's newsworthy ;-)?
TRMM is indeed manoeuvring, as can be seen in these recent elsets:
TRMM 4.0 0.0 0.0 5.6 d 347 x 346 km
1 25063U 97074A 98354.20484172 .00057791 00000-0 38379-3 0 5291
2 25063 34.9960 298.7923 0000882 271.3643 88.6985 15.74287439 61060
TRMM 4.0 0.0 0.0 5.6 d 348 x 347 km
1 25063U 97074A 98354.96576038 .00055962 00000-0 37781-3 0 5303
2 25063 34.9975 293.6238 0000948 230.1774 129.5314 15.73913560 61184
TRMM 4.0 0.0 0.0 5.6 d 350 x 346 km
1 25063U 97074A 98355.21952505 -.00259260 00000-0 -18180-2 0 5310
2 25063 34.9980 291.9105 0002888 192.5096 167.5567 15.73857733 61223
TRMM 4.0 0.0 0.0 5.6 d 350 x 346 km
1 25063U 97074A 98355.21953223 -.00261074 00000-0 -18315-2 0 5392
2 25063 34.9969 291.9053 0002592 196.5215 163.5839 15.73854734 61227
TRMM 4.0 0.0 0.0 5.6 d 348 x 347 km
1 25063U 97074A 98355.91732480 .00013978 00000-0 94764-4 0 5322
2 25063 34.9956 287.1616 0000676 247.5359 113.3734 15.74019141 61337
TRMM 4.0 0.0 0.0 5.6 d 348 x 347 km
1 25063U 97074A 98356.17085782 .00067594 00000-0 45227-3 0 5330
2 25063 34.9942 285.4361 0001080 270.4364 89.6243 15.74083050 61375
TRMM 4.0 0.0 0.0 5.6 d 348 x 347 km
1 25063U 97074A 98356.86846004 .00059068 00000-0 39438-3 0 5343
2 25063 34.9944 280.6970 0000905 269.8239 90.2369 15.74159997 61481
It is one of the objects I include in select.tle, available via my
SatEvo WWW page.
Alan
--
Alan Pickup | COSPAR 2707: 55d53m48.7s N 3d11m51.2s W 156m asl
Edinburgh | Home: alan@wingar.demon.co.uk +44 (0)131 477 9144
Scotland | SatEvo page: http://www.wingar.demon.co.uk/satevo/