UARS - Orbital Information Yaw
Maneuver History | Latitude Coverage
(Oct. '91 - Dec. '93) | Latitude Coverage (Jan. '94
- June '96) |
Yaw Dates (Oct. '91 - Dec. '93) | Yaw
Dates (Oct. '94 - June '96) |
=========================================================================
DOY UARS Day Date Direction Orbit Start time End Time
--- -------- ---- --------- ----- ---------- --------
01220 3619 08-Aug-2001 FORW TO BACK 54176 220/16:29:57 17:07:07
01179 3578 28-Jun-2001 BACK TO FORW 53567 179/10:54:41 11:31:51
01150 3549 30-May-2001 FORW TO BACK 53125 150/15:16:50 15:54:00
01109 3508 19-Apr-2001 BACK TO FORW 52510 109/16:01:03 16:38:13
01074 3473 15-Mar-2001 FORW TO BACK 51985 074/15:16:52 15:54:03
01040 3439 09-Feb-2001 BACK TO FORW 51476 040/17:42:21 18:19:31
00366 3399 31-Dec-2000 FORW TO BACK 50875 366/14:57:40 15:34:50
00337 3370 02-Dec-2000 BACK TO FORW 50439 337/14:14:39 14:51:49
****************************************************************************
****************************************************************************
NOTE: Times are listed in this section for each of the yaw maneuvers
used for the "10-degree yaw offset" operation of UARS from 7 November
to 16 November 2000. The maneuvers on 2 and 6 November were done to
verify commanding procedures.
The spacecraft is now operating in its normal attitude (that
is no offset in yaw, roll, or pitch.)
DOY UARS Day Date Direction Orbit Start time End Time
--- -------- ---- --------- ----- ---------- --------
00321 3354 16-Nov-2000 +10 to 0 deg 50200 321/15:49:44 16:09:44
00318 3351 13-Nov-2000 +11 to +10 deg 50155 318/15:43:29 15:45:29
00316 3349 11-NOV-2000 +10 to +11 deg 50121 316/08:06:19 08:08:19
00312 3345 07-NOV-2000 0 to +10 deg 50065 312/13:52:13 14:12:13
00311 3344 06-NOV-2000 +10 to 0 deg 50051 311/17:14:44 17:34:44
00311 3344 06-NOV-2000 0 to +10 deg 50049 311/13:50:44 14:10:44
00307 3340 02-NOV-2000 + 3 to 0 deg 49990 307/15:37:48 15:43:48
00307 3340 02-NOV-2000 0 to + 3 deg 49990 307/15:22:51 15:28:51
****************************************************************************
****************************************************************************
DOY UARS Day Date Direction Orbit Start time End Time
--- -------- ---- --------- ----- ---------- --------
00297 3330 23-OCT-2000 FORW TO BACK 49839 297/12:56:39 13:33:49
00261 3294 17-SEP-2000 BACK TO FORW 49299 261/13:23:55 14:01:05
00227 3260 14-AUG-2000 FORW TO BACK 48790 227/13:51:13 14:28:23
00186 3219 04-JUL-2000 BACK TO FORW 48175 186/13:51:15 14:28:25
00157 3190 05-JUN-2000 FORW TO BACK 47742 157/16:01:29 16:38:39
00116 3149 25-APR-2000 BACK TO FORW 47127 116/15:52:58 16:30:08
00081 3114 21-MAR-2000 FORW TO BACK 46603 081/16:00:59 16:38:09
00046 3079 15-FEB-2000 BACK TO FORW 46077 046/14:25:57 15:03:07
00006 3039 06-JAN-2000 FORW TO BACK 45478 006/13:59:49 14:36:59
99342 3010 08-Dec-1999 BACK TO FORW 45043 342/14:14:29 14:51:39
99301 2969 28-Oct-1999 FORW TO BACK 44430 301/15:13:53 15:51:03
99267 2935 24-Sep-1999 BACK TO FORW 43920 267/15:02:23 15:39:33
99232 2900 20-Aug-1999 FORW TO BACK 43396 232/14:45:15 15:22:25
99191 2859 10-Jul-1999 BACK TO FORW 42781 191/13:58:35 14:35:45
99162 2830 11-Jun-1999 FORW TO BACK 42348 162/14:00:34 14:37:44
99120 2788 30-Apr-1999 BACK TO FORW 41718 120/14:41:20 15:19:30
99086 2754 27-Mar-1999 FORW TO BACK 41210 086/15:55:48 16:32:58
99051 2719 20-Feb-1999 BACK TO FORW 40685 051/15:27:22 16:04:32
99011 2679 11-JAN-1999 FORW TO BACK 40087 011/16:07:46 16:44:56
98347 2650 13-DEC-1998 BACK TO FORW 39652 347/16:01:21 16:38:31
98306 2609 02-NOV-1998 FORW TO BACK 39038 306/14:56:30 15:33:40
98272 2575 29-SEP-1998 BACK TO FORW 38528 272/14:24:59 15:02:09
98237 2540 25-AUG-1998 FORW to BACK 38004 237/13:46:24 14:23:34
98196 2499 15-JUL-1998 BACK to FORW 37390 196/14:13:36 14:50:46
98166 2469 15-JUN-1998 FORW to BACK 36941 166/13:56:57 14:34:07
98125 2428 05-MAY-1998 BACK to FORW 36237 125/14:20:20 14:57:30
98092 2395 02-APR-1998 FORW to BACK 35833 092/13:47:22 14:24:32
98056 2359 25-FEB-1998 BACK to FORW 34294 056/14:35:50 15:14:00
98016 2319 16-JAN-1998 FORW to BACK 34695 016/13:25:19 14:02:29
97351 2289 17-DEC-1997 BACK to FORW 34246 351/14:41:26 15:18:36
97311 2249 08-NOV-1997 FORW to BACK 33647 311/13:27:08 14:04:18
97277 2215 04-OCT-1997 BACK to FORW 33138 277/14:23:52 15:01:02
97242 2179 29-AUG-1997 FORW to BACK 32601 241/16:45:38 17:22:48
97201 2139 20-JUL-1997 BACK to FORW 32000 201/13:56:36 14:33:46
97171 2109 20-JUN-1997 FORW to BACK 31552 171/15:10:55 15:48:05
97129 2067 09-MAY-1997 BACK to FORW 30922 129/13:47:46 14:24:58
97096 2034 06-APR-1997 FORW to BACK 30428 096/13:10:47 13:47:57
97060 1998 01-MAR-1997 BACK to FORW 29889 060/13:54:18 14:31:28
97020 1958 20-JAN-1997 FORW to BACK 29291 020/14:16:23 14:53:33
96357 1929 22-DEC-1996 BACK to FORW 28856 357/13:56:44 14:33:54
96316 1888 11-NOV-1996 FORW to BACK 28243 316/14:11:12 14:48:22
96283 1855 09-OCT-1996 BACK to FORW 27748 283/13:33:07 14:10:17
96246 1818 02-SEP-1996 FORW to BACK 27195 246/14:11:40 14:48:50
96206 1778 24-JUL-1996 BACK to FORW 26596 206/14:32:49 15:09:59
96176 1748 24-JUN-1996 FORW to BACK 26147 176/14:08:30 14:45:40
96135 1707 14-MAY-1996 BACK to FORW 25533 135/14:21:43 14:58:53
96102 1674 11-APR-1996 FORW to BACK 25039 102/13:42:53 14:16:33
96065 1637 05-MAR-1996 BACK to FORW 24486 065/15:55:25 16:32:35
96026 1598 26-JAN-1996 FORW to BACK 23902 026/14:42:20 15:19:30
95361 1568 27-DEC-1995 BACK to FORW 23452 361/14:16:20 14:53:30
95320 1527 16-NOV-1995 FORW to BACK 22839 320/14:26:54 15:04:04
95288 1495 15-OCT-1995 BACK to FORW 22359 288/13:49:56 14:27:06
95251 1458 08-SEP-1995 FORW to BACK 21806 251/14:23:41 15:00:51
95211 1418 30-JUL-1995 BACK to FORW 21207 211/14:41:10 15:14:50
95181 1388 30-JUN-1995 FORW to BACK 20758 181/14:13:11 14:50:21
95139 1346 19-MAY-1995 BACK to FORW 20131 139/17:30:12 18:07:22
95107 1314 17-APR-1995 FORW to BACK 19652 107/16:51:40 17:25:20
95070 1277 11-MAR-1995 BACK to FORW 19098 070/17:22:19 17:59:29
95030 1237 30-JAN-1995 FORW to BACK 18499 030/16:00:43 16:37:53
94365 1207 31-DEC-1994 BACK to FORW 18051 365/18:42:16 19:19:26
94324 1166 20-NOV-1994 FORW to BACK 17436 324/15:33:19 16:10:29
94293 1135 20-OCT-1994 BACK to FORW 16972 293/16:31:22 17:08:32
94255 1097 12-SEP-1994 FORW to BACK 16403 255/15:26:29 16:03:39
94216 1058 04-AUG-1994 BACK to FORW 15820 216/17:27:42 18:04:52
94185 1027 04-JUL-1994 FORW to BACK 15355 185/15:22:27 15:59:37
94143 985 23-MAY-1994 BACK to FORW 14743 143/18:43:08 19:20:18
94112 954 22-APR-1994 FORW to BACK 14262 112/14:59:51 15:33:31
94075 917 16-MAR-1994 BACK to FORW 13709 075/17:09:04 17:46:14
94035 877 04-FEB-1994 FORW to BACK 13110 035/15:51:05 16:28:15
94005 847 05-JAN-1994 BACK to FORW 12611 005/16:56:18 17:33:28
93329 806 25-NOV-1993 FORW to BACK 12046 329/13:46:46 14:23:56
93297 774 24-OCT-1993 BACK to FORW 11568 297/16:16:01 16:53:11
93260 737 17-SEP-1993 FORW to BACK 11013 260/13:26:51 14:04:01
93220 697 08-AUG-1993 BACK to FORW 10413 220/11:58:26 12:35:26
93189 666 08-JUL-1993 FORW to BACK 9952 189/16:25:34 17:02:44
93148 625 28-MAY-1993 BACK to FORW 9338 148/16:45:16 17:22:26
93116 593 26-APR-1993 FORW to BACK 8859 116/16:16:46 16:53:56
93078 555 19-MAR-1993 BACK to FORW 8288 078/13:37:35 14:11:15
93040 517 09-FEB-1993 FORW to BACK 7720 040/14:13:07 14:50:17
93009 486 09-JAN-1993 BACK to FORW 7255 009/13:44:59 14:18:39
92334 445 29-NOV-1992 FORW to BACK 6642 334/14:03:55 14:37:35
92303 414 29-OCT-1992 BACK to FORW 6179 303/15:56:00 16:29:40
92265 376 21-SEP-1992 FORW to BACK 5608 265/12:26:44 13:00:24
92226 337 13-AUG-1992 BACK to FORW 5024 226/12:47:28 13:21:08
92195 306 13-JUL-1992 FORW to BACK 4560 195/12:11:32 12:45:12
92153 264 01-JUN-1992 BACK to FORW 3931 153/12:09:53 12:45:03
92122 233 01-MAY-1992 FORW to BACK 3468 122/13:16:07 13:49:47
92083 194 23-MAR-1992 BACK to FORW 2885 083/13:35:05 14:08:45
92045 156 14-FEB-1992 FORW to BACK 2316 045/14:17:50 14:51:30
92014 125 14-JAN-1992 BACK to FORW 1852 014/13:44:53 14:18:33
91338 084 04-DEC-1991 FORW to BACK 1237 338/12:33:33 13:07:13
91307 053 03-NOV-1991 BACK to FORW 774 307/13:41:24 14:15:04
91269 015 26-SEP-1991 FORW to BACK 197 269/01:21:56 01:55:36
Yaw maneuver duration = 37.167 minutes (37:10).
End time was determined by adding 37 min 10 sec to start time.
NOTE: Flying FORWARD = COLD SIDE FACING SOUTH
Forecast Dates for Future UARS Yaw Maneuvers
from January 1999 to March 2001
--------------------------------------------
11 Jan 1999 (99011) Forward to Backward
20 Feb 1999 (99051) Backward to Forward
28 Mar 1999 (99087) Forward to Backward
1 May 1999 (99121) Backward to Forward
11 Jun 1999 (99162) Forward to Backward
10 Jul 1999 (99191) Backward to Forward
20 Aug 1999 (99232) Forward to Backward
24 Sep 1999 (99267) Backward to Forward
28 Oct 1999 (99301) Forward to Backward
8 Dec 1999 (99342) Backward to Forward
6 Jan 2000 (00006) Forward to Backward
15 Feb 2000 (00046) Backward to Forward
21 Mar 2000 (00081) Forward to Backward
25 Apr 2000 (00116) Backward to Forward
4 Jun 2000 (00156) Forward to Backward
4 Jul 2000 (00186) Backward to Forward
14 Aug 2000 (00227) Forward to Backward
17 Sep 2000 (00261) Backward to Forward
23 Oct 2000 (00297) Forward to Backward
2 Dec 2000 (00337) Backward to Forward
31 Dec 2000 (00366) Forward to Backward
9 Feb 2001 (01040) Backward to Forward
15 Mar 2001 (01074) Forward to Backward
19 Apr 2001 (01109) Backward to Forward
30 May 2001 (01150) Forward to Backward
28 Jun 2001 (01179) Backward to Forward
8 Aug 2001 (01220) Forward to Backward
11 Sep 2001 (01254) Backward to Forward
17 Oct 2001 (01290) Forward to Backward
26 Nov 2001 (01330) Backward to Forward
25 Dec 2001 (01359) Forward to Backward
Note: These predicted dates are based on solar
beta angles contained in 18-month UARS Orbital
Parameter Profile planning aid file UA208OP1.ODB
dated 2 August 2000.
Actual yaw maneuver days may vary plus or minus
one day, due to variations in orbit decay and
spacecraft altitude.
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