Welcome to SeeSat-L, Robert! Your observation report is in excellent agreement with the shuttle's latest orbital elements. I estimate that it could have reached magnitude -3 on your pass. > It was noticeable that the map on the NASA spaceflight beta > tracker showed it over my location after I had LOS, - could this could be > owing to lag over the Internet? I have just checked the NASA spaceflight beta tracker, and found it running about 8 min late. My guess is that the tracker is using elements from NASA/OIG, most of which have orbital decay terms that are far too low. If they are using one of those elsets, and if it about one week old, that would account for the present 8 min error. The error will continue to grow until the old/erroneous elset is replaced with a better one. I suggest using the projected elsets provided here: http://spaceflight.nasa.gov/realdata/sightings/SSapplications/Post/JavaSSOP/orbit/SHUTTLE/SVPOST.html This elset should be good for at least the next 24 hours: 1 27647U 03003A 03026.20212533 .00189937 00000-0 37621-3 0 9013 2 27647 39.0218 165.4368 0009615 76.3077 283.8971 16.00371539 1548 Your pass of 26 Jan will be about 1 min earlier than that of 25 Jan: 26/ 1/ 3 00:00 - 24:00 UTC J2000.0 EL > 0 Robert Holdsworth STS 107 03003A 27647 Bull = 901 Robert Holdsworth SGP4 Age = 0.2 d Unc = 0 s ( 50%) Src =31 TIME %I Mvv AZ EL R.A. DEC FE VANG RANGE ALT -------- -- ---- --- -- -------- --------- ---- ---- ----- ----- 08:53:43 15 3.4 277 0 23:13:18 05:25:42 6.8 0.07 1950 290 08:55:28 20 2.0 281 9 23:51:48 02:53:26 7.1 0.14 1222 290 08:56:23 26 0.8 287 16 00:30:17 01:27:14 7.3 0.25 855 291 08:56:53 32 -0.1 293 23 01:06:03 00:36:22 7.4 0.39 668 291 08:57:12 39 -0.8 299 29 01:39:34 00:02:38 7.5 0.54 560 291 08:57:26 45 -1.4 306 35 02:12:43 -00:22:10 7.7 0.70 490 291 08:57:37 52 -1.8 315 40 02:45:21 -00:40:20 7.9 0.85 443 291 08:57:46 58 -2.2 324 44 03:16:54 -00:53:02 8.1 0.98 412 291 08:57:54 65 -2.5 334 47 03:48:31 -01:01:28 8.3 1.08 392 291 08:58:01 70 -2.7 345 49 04:18:28 -01:05:46 8.6 1.15 380 291 08:58:08 76 -2.9 356 50 04:49:43 -01:06:34 8.9 1.18 375 291 08:58:14 80 -3.0 7 50 05:16:46 -01:04:18 9.2 1.18 376 291 08:58:20 84 -3.0 17 49 05:43:21 -00:59:24 9.5 1.14 382 291 08:58:27 88 -3.0 27 46 06:12:57 -00:50:49 9.7 1.07 394 291 08:58:34 91 -3.0 36 44 06:40:21 -00:39:52 9.9 0.98 413 291 08:58:42 94 -2.9 44 40 07:08:28 -00:25:27 10.1 0.86 440 291 08:58:51 96 -2.8 51 36 07:35:57 -00:07:57 10.3 0.74 477 291 08:59:01 97 -2.6 57 32 08:01:43 00:11:57 10.4 0.61 525 290 08:59:13 98 -2.3 62 27 08:27:01 00:35:32 10.5 0.49 589 290 08:59:14 EP 98 -2.3 63 27 08:29:27 00:38:04 10.5 0.48 596 290 08:59:25 EU 98 -2.1 66 24 08:46:58 00:57:45 10.6 0.40 656 290 ----------------------------------------------------------------- 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 Jan 25 2003 - 16:52:28 EST