The UARS scapecraft occasionally performed rolls to enhance scientific return or for engineering reasons. The rolls are shown in the table below.
|
UARS day
|
Year-day of year
|
Date
|
Time (UT)
|
Orbit
|
Roll maneuver
|
|
944
|
1994 -102
|
12 April 1994
|
14:33
|
14112
|
Spacecraft rolled +2.4 degrees
(cold side rolled down)
|
|
954
|
1994-112
|
22 April 1994
|
13:36:06
|
14261
|
Spacecraft rolled from +2.4
degrees (cold side down) to nominal attitude (0 degrees)
|
|
954
|
1994-112
|
22 April 1994
|
21:37:12
|
14266
|
Spacecraft rolled +2.4 degrees
(cold side down)
|
|
985
|
1994-143
|
23 May 1994
|
17:24:24
|
14727
|
Spacecraft rolled from +2.4
degrees (cold side down) to nominal attitude (0 degrees)
|
|
985
|
1994-143
|
23 May 1994
|
20:26:42
|
14729
|
Spacecraft rolled +2.4 degrees
(cold side down)
|
|
1027
|
1994-185
|
04 July 1994
|
13:58:42
|
15354
|
Spacecraft rolled from +2.4
degrees (cold side down) to nominal attitude (0 degrees)
|
|
1027
|
1994-185
|
04 July 1994
|
17:11:02
|
15356
|
Spacecraft rolled +2.4 degrees
(cold side down)
|
|
1058
|
1994-216
|
04 August 1994
|
16:08:59
|
15820
|
Spacecraft rolled from +2.4
degrees (cold side down) to nominal attitude (0 degrees)
|
|
1058
|
1994-216
|
04 August 1994
|
19:21:17
|
15821
|
Spacecraft rolled +2.4 degrees
(cold side down)
|
|
1097
|
1994-255
|
12 September 1994
|
14:07:45
|
16402
|
Spacecraft rolled from +2.4
degrees (cold side down) to nominal attitude (0 degrees)
|
|
1097
|
1994-255
|
12 September 1994
|
17:20:04
|
16404
|
Spacecraft rolled +2.4 degrees
(cold side down)
|
|
1108
|
1994-266
|
23 September 1994
|
00:22:39
|
16558
|
Spacecraft rolled from +2.4
degrees (cold side down) to nominal attitude (0 degrees)
|
|
1108
|
1994-266
|
23 September 1994
|
22:50:23
|
16572
|
Spacecraft rolled +2.4 degrees
(cold side down)
|
|
1135
|
1994-293
|
20 October 1994
|
15:12:37
|
16972
|
Spacecraft rolled from +2.4
degrees (cold side down) to nominal attitude (0 degrees)
|
|
1135
|
1994-293
|
20 October 1994
|
23:13:41
|
16977
|
Spacecraft rolled from 0 degrees
to +2.4 degrees (cold side down)
|
|
1166
|
1994-324
|
20 November 1994
|
14:14:34
|
17435
|
Spacecraft rolled from +2.4
degrees (cold side down) to nominal attitude (0 degrees)
|
|
1166
|
1994-324
|
20 November 1994
|
17:26:54
|
17437
|
Spacecraft rolled from 0
degrees to –2.4 degrees (cold side up)
|
|
1207
|
1994-365
|
31 December 1994
|
17:23:31
|
18051
|
Spacecraft rolled from -2.4
degrees (cold side up) to nominal attitude (0 degrees)
|
|
1207
|
1994-365
|
31 December 1994
|
20:35:51
|
18053
|
Spacecraft rolled from 0
degrees to –2.4 degrees (cold side up
|
|
1217
|
1995-010
|
10 January 1995
|
00:08:00
|
Not recorded
|
Spacecraft rolled from -2.4
degrees (cold side up) to +0.5 degrees (cold side down)
|
|
1237
|
1995-030
|
30 January 1995
|
14:41:18
|
18498
|
Spacecraft rolled from +0.5
degrees (cold side down) to nominal attitude (0 degrees)
|
|
1569
|
1995-361
|
28 December 1995
|
16:09:24
|
23454 |
Spacecraft rolled from 0.0
degrees to +0.32 degrees (cold side down). Maneuver was performed to enable WINDII to observe the
Polar Mesospheric Clouds in the
Southern Hemisphere.
|
|
1598
|
1996-026
|
26 January 1996
|
13:22:55
|
23901 |
Spacecraft rolled from +0.32
degrees (cold side down) to nominal attitude (0 degrees)
|
|
1762
|
1996-190
|
08 July 1996
|
12:08:10
|
26355
|
Spacecraft rolled to +0.5
degrees (cold side down).
Maneuver to support WINDII observations of gravity waves.
|
|
1769
|
1996-197
|
15 July 1996
|
12:38:30
|
26460
|
Spacecraft rolled from +0.5
degrees (cold side down) to nominal (0 degrees)
|
|
1942
|
1997-004
|
04 January 1997
|
13:28:27
|
29051
|
Spacecraft rolled +2.0 degrees
(cold side down). Maneuver performed to support WINDII observations of
gravity waves.
|
|
1950
|
1997-012
|
12 January 1997
|
14:02:40
|
29171
|
Spacecraft rolled from +2.0
degrees (cold side down) to nominal (0 degrees).
|
|
2654
|
1998-351
|
17 December 1998
|
14:54:57
|
39713
|
Spacecraft rolled +0.5 degrees (cold side down). Maneuver performed to support WINDII
observations of Polar Mesosphere clouds.
|
|
2679
|
1999-011
|
11 January 1999
|
13:12:11
|
40085
|
Spacecraft rolled from +0.5
degrees (cold side down) to nominal attitude (0 degrees).
|
|
2731
|
1999-063
|
04 March 1999
|
22:48:00
|
40870
|
Spacecraft rolled +0.5 degrees
(cold side down). ). Maneuver
performed to support WINDII observations of Polar Mesosphere clouds.
|
|
2743
|
1999-087
|
16 March 1999
|
23:38:06
|
41021
|
Spacecraft rolled from +0.5
degrees (cold side down) to nominal attitude (0 degrees).
|
|
3017
|
1999-349
|
15 December 1999
|
15:23
|
45149
|
Spacecraft rolled +0.4 degrees
(cold side down). ). Maneuver
performed to support WINDII observations of Polar Mesosphere clouds.
|
|
3025
|
1999-357
|
23 December 1999
|
16:51
|
45270
|
Spacecraft rolled from +0.4
degrees (cold side down) to nominal attitude (0 degrees).
|
