UVIS Goals for CSM
R. West
Solar and Stellar Occultations
• Occultations provide N2 density profiles,
compositional information on some
hydrocarbons and haze structure in the region
300-3000 km altitude (in the ‘ignorosphere’
between 400 and 900 km UVIS provides the
only information
• Detailed vertical profiles but point locations in lat,
lon.
• EUV (solar) for N2; FUV (star occs) for
hydrocarbons and haze
• Advocacy for VIMS solar occs – hydrocarbons,
CO, and haze down to the surface
Criteria
• Need a distribution in latitude, with
attention to high latitudes where the winter
polar vortex is expected to be present in
the south
• Need time coverage to assess seasonal
and solar variations
• Need approximately radial occs
• For stellar occs, slower is better
Stellar Occ Opportunities
Sort
89
101
101
103
103
104
105
105
105
105
106
114
114
116
116
116
118
119
Used trajectory file SM-7_scpse.bsp for Titan
Note: times relative to C/A; inculdes 15 minutes above 1800 km; does not include turn times
Rev
Star
Event
UTC at 200 Km
Start
End
Duration Base lat Top lat
Speed
Bright/
t-t0, min. t-t0, min Seconds Degrees Degrees km/s
Faint
By rev
181 Eta_UMa NGRESS 2013 FEB 17 02:04:14.33
-48
-0.3
1960
46.4
28.1
0.8 B
204 Eta_UMa NGRESS 2014 MAY 17 02:16:36.40
-953.3
-824.8
6810
42.7
46.6
0.2 B
204 Eta_UMa EGRESS 2014 MAY 17 07:59:16.71
-395.8
-96.3
17070
-32.8
-38.7
0.1 B
206 Alp_Eri
NGRESS 2014 JUL 20 12:35:17.21
-80.7
-0.3
3920
-33.1
-38.6
0.4 B
206 Alp_Eri
EGRESS 2014 JUL 20 13:15:24.71
64.6
121.1
2490
-0.1
11.2
0.6 B
207 Eta_UMa EGRESS 2014 AUG 21 07:54:16.15
-1.8
43.2
1800
44.3
43.4
0.8 B
208 Eta_UMa NGRESS 2014 SEP 22 02:35:11.26
-234.8
-162.7
3430
-28.9
-34.2
0.4 B
208 Eta_UMa EGRESS 2014 SEP 22 04:51:08.45
336.3
405
3220
-25
-30.7
0.3 B
208 Alp_Eri
NGRESS 2014 SEP 22 05:33:23.26
-131.2
-0.3
6950
36.1
39
0.2 B
208 Alp_Eri
EGRESS 2014 SEP 22 06:58:53.26
95.5
135.8
1520
-37.5
-38.4
1B
209 Alp_Eri
NGRESS 2014 OCT 24 02:44:19.93
-46.2
-0.3
1850
22.7
32
0.8 B
225 Zet_Ori
NGRESS 2015 NOV 13 08:10:02.57
-41.2
-0.3
1550
-30.5
-21.8
1B
225 Eps_Ori NGRESS 2015 NOV 13 08:17:15.89
-41.7
-0.3
1580
-12.3
-13.3
0.9 B
231 Eps_Ori NGRESS 2016 FEB 01 01:17:14.55
-60.2
-0.3
2690
-82.9
-72.1
0.6 B
231 Zet_Ori
NGRESS 2016 FEB 01 01:18:27.62
-63.7
-0.3
2900
-80.6
-68.5
0.5 B
231 Bet_Ori EGRESS 2016 FEB 01 03:49:04.58
153.7
207
2300
74.6
76.7
0.7 B
234 Kap_Ori NGRESS 2016 APR 04 19:58:35.18
-42.7
-0.3
1640
-65
-77.1
0.9 B
235 Alp_Lyr EGRESS 2016 MAY 06 16:42:30.57
-5.3
75
3920
-53.4
-45.3
0.4 B
1.8
98.9
11.9
6.9
24.6
3.3
23.4
41.3
10.8
14.6
2.7
12.6
13.3
3.8
4.1
23.2
2.5
6.6
44.2
11.8
17.3
16.4
31.1
2.8
15.5
16.9
8.8
2.6
26.5
24.8
3.1
29.9
32.8
6.3
32.8
23.3
Sort
118
116
116
119
101
103
105
105
105
114
114
103
89
106
105
104
101
116
By latitude
234 Kap_Ori
231 Eps_Ori
231 Zet_Ori
235 Alp_Lyr
204 Eta_UMa
206 Alp_Eri
208 Alp_Eri
208 Eta_UMa
208 Eta_UMa
225 Zet_Ori
225 Eps_Ori
206 Alp_Eri
181 Eta_UMa
209 Alp_Eri
208 Alp_Eri
207 Eta_UMa
204 Eta_UMa
231 Bet_Ori
NGRESS
NGRESS
NGRESS
EGRESS
EGRESS
NGRESS
EGRESS
NGRESS
EGRESS
NGRESS
NGRESS
EGRESS
NGRESS
NGRESS
NGRESS
EGRESS
NGRESS
EGRESS
2016 APR 04 19:58:35.18
2016 FEB 01 01:17:14.55
2016 FEB 01 01:18:27.62
2016 MAY 06 16:42:30.57
2014 MAY 17 07:59:16.71
2014 JUL 20 12:35:17.21
2014 SEP 22 06:58:53.26
2014 SEP 22 02:35:11.26
2014 SEP 22 04:51:08.45
2015 NOV 13 08:10:02.57
2015 NOV 13 08:17:15.89
2014 JUL 20 13:15:24.71
2013 FEB 17 02:04:14.33
2014 OCT 24 02:44:19.93
2014 SEP 22 05:33:23.26
2014 AUG 21 07:54:16.15
2014 MAY 17 02:16:36.40
2016 FEB 01 03:49:04.58
-42.7
-60.2
-63.7
-5.3
-395.8
-80.7
95.5
-234.8
336.3
-41.2
-41.7
64.6
-48
-46.2
-131.2
-1.8
-953.3
153.7
-0.3
-0.3
-0.3
75
-96.3
-0.3
135.8
-162.7
405
-0.3
-0.3
121.1
-0.3
-0.3
-0.3
43.2
-824.8
207
1640
2690
2900
3920
17070
3920
1520
3430
3220
1550
1580
2490
1960
1850
6950
1800
6810
2300
-65
-82.9
-80.6
-53.4
-32.8
-33.1
-37.5
-28.9
-25
-30.5
-12.3
-0.1
46.4
22.7
36.1
44.3
42.7
74.6
-77.1
-72.1
-68.5
-45.3
-38.7
-38.6
-38.4
-34.2
-30.7
-21.8
-13.3
11.2
28.1
32
39
43.4
46.6
76.7
0.9
0.6
0.5
0.4
0.1
0.4
1
0.4
0.3
1
0.9
0.6
0.8
0.8
0.2
0.8
0.2
0.7
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
2.5
3.8
4.1
6.6
11.9
6.9
14.6
23.4
41.3
12.6
13.3
24.6
1.8
2.7
10.8
3.3
98.9
23.2
32.8
29.9
32.8
23.3
17.3
16.4
2.6
15.5
16.9
24.8
3.1
31.1
44.2
26.5
8.8
2.8
11.8
6.3
Sort
101
101
105
105
103
105
119
116
103
116
116
89
104
106
114
118
105
114
By speed
204
204
208
208
206
208
235
231
206
231
231
181
207
209
225
234
208
225
EGRESS
NGRESS
NGRESS
EGRESS
NGRESS
NGRESS
EGRESS
NGRESS
EGRESS
NGRESS
EGRESS
NGRESS
EGRESS
NGRESS
NGRESS
NGRESS
EGRESS
NGRESS
2014 MAY 17 07:59:16.71
2014 MAY 17 02:16:36.40
2014 SEP 22 05:33:23.26
2014 SEP 22 04:51:08.45
2014 JUL 20 12:35:17.21
2014 SEP 22 02:35:11.26
2016 MAY 06 16:42:30.57
2016 FEB 01 01:18:27.62
2014 JUL 20 13:15:24.71
2016 FEB 01 01:17:14.55
2016 FEB 01 03:49:04.58
2013 FEB 17 02:04:14.33
2014 AUG 21 07:54:16.15
2014 OCT 24 02:44:19.93
2015 NOV 13 08:17:15.89
2016 APR 04 19:58:35.18
2014 SEP 22 06:58:53.26
2015 NOV 13 08:10:02.57
-395.8
-953.3
-131.2
336.3
-80.7
-234.8
-5.3
-63.7
64.6
-60.2
153.7
-48
-1.8
-46.2
-41.7
-42.7
95.5
-41.2
-96.3
-824.8
-0.3
405
-0.3
-162.7
75
-0.3
121.1
-0.3
207
-0.3
43.2
-0.3
-0.3
-0.3
135.8
-0.3
17070
6810
6950
3220
3920
3430
3920
2900
2490
2690
2300
1960
1800
1850
1580
1640
1520
1550
-32.8
42.7
36.1
-25
-33.1
-28.9
-53.4
-80.6
-0.1
-82.9
74.6
46.4
44.3
22.7
-12.3
-65
-37.5
-30.5
-38.7
46.6
39
-30.7
-38.6
-34.2
-45.3
-68.5
11.2
-72.1
76.7
28.1
43.4
32
-13.3
-77.1
-38.4
-21.8
0.1
0.2
0.2
0.3
0.4
0.4
0.4
0.5
0.6
0.6
0.7
0.8
0.8
0.8
0.9
0.9
1
1
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
11.9
98.9
10.8
41.3
6.9
23.4
6.6
4.1
24.6
3.8
23.2
1.8
3.3
2.7
13.3
2.5
14.6
12.6
17.3
11.8
8.8
16.9
16.4
15.5
23.3
32.8
31.1
29.9
6.3
44.2
2.8
26.5
3.1
32.8
2.6
24.8
T
Eta_UMa
Eta_UMa
Alp_Eri
Eta_UMa
Alp_Eri
Eta_UMa
Alp_Lyr
Zet_Ori
Alp_Eri
Eps_Ori
Bet_Ori
Eta_UMa
Eta_UMa
Alp_Eri
Eps_Ori
Kap_Ori
Alp_Eri
Zet_Ori
Solar Occ Opportunities
T
78
78
78 c/a
82
82
101
101
102
102
103
103
103 c/a
116
116
116 c/a
117
117
118
118 c/a
119
119
Rev
UTC_Time
153 2011-255T02:30:41
Ingress
2011-255T02:34:51
Stop integration
153 2011-255T02:48:43
Egress 2011-255T02:53:07
2011-255T02:49:32
Start integration
161 2012-050T07:56:50
Ingress 2012-050T08:03:20
161 2012-050T08:10:34
Egress 2012-050T08:17:06
204 2014-137T15:54:04
Ingress
2014-137T15:57:56
204 2014-137T16:15:24
Egress 2014-137T16:19:10
205 2014-169T13:08:25
Ingress 2014-169T13:12:07
205 2014-169T13:29:31
Egress 2014-169T13:33:09
206 2014-201T10:19:46
Ingress 2014-201T10:23:26
Stop integration
206 2014-201T10:40:36
Egress 2014-201T10:44:16
2014-201T10:29:04
Start integration
231 2016-032T00:59:53
Ingress 2016-032T01:06:49
Stop integration
231 2016-032T01:34:05
Egress
2016-032T01:40:27
2016-032T01:05:45
Start integration
232 2016-047T23:49:12
Ingress 2016-047T23:55:52
232 2016-048T00:14:24
Egress
2016-048T00:20:38
234 2016-095T19:44:31
Ingress 2016-095T19:49:13
Stop integration
234 2016-095T20:10:41
Egress 2016-095T20:15:11
2016-095T19:51:11
Start integration
235 2016-127T16:56:45
Ingress 2016-127T17:01:29
235 2016-127T17:18:03
Egress 2016-127T17:22:37
Year-DOY
H
M
S
2011-255
2011-255
2
2
30
34
41
51
2.5
2.6
2011-255
2011-255
2011-255
2
2
2
48
53
49
43
7
32
2.8
2.9
2.8
0.0
7.9
8.1
8.2
8.3
15.9
16.0
16.3
16.3
13.1
13.2
13.5
13.6
10.3
10.4
2012-050
2012-050
2012-050
2012-050
2014-137
2014-137
2014-137
2014-137
2014-169
2014-169
2014-169
2014-169
2014-201
2014-201
7
8
8
8
15
15
16
16
13
13
13
13
10
10
56
3
10
17
54
57
15
19
8
12
29
33
19
23
50
20
34
6
4
56
24
10
25
7
31
9
46
26
hrs.
mins.
Lat_Occ
Occ_Ray_Height dt
Rel to c/a
deg
km
sec
27.4
1501.2
38.5
300.8
250
-13.6
0.0
32.1
238.2
20.1
1499.9
264.0
-1.6
45.5
69.3
58.0
32.6
-55.6
-52.1
67.8
67.0
-64.6
-65.5
57.0
58.5
-64.5
-65.5
-4.7
2014-201 10
2014-201 10
2014-201 10
40
44
29
36
16
4
10.7
10.7
10.5
56.0
57.7
10.6
2016-032
2016-032
0
1
59
6
53
49
1.0
1.1
-64.2
-63.4
2.8
2016-032
2016-032
2016-032
1
1
1
34
40
5
5
27
45
1.6
1.7
1.1
2016-047
2016-047
2016-048
2016-048
2016-095
2016-095
23
23
0
0
19
19
49
55
14
20
44
49
12
52
24
38
31
13
23.8
23.9
0.2
0.3
19.7
19.8
2016-095 20
2016-095 20
2016-095 19
10
15
51
41
11
11
20.2
20.3
19.9
48.1
52.7
26.7
59.1
58.9
-62.9
-58.7
39.2
47.3
0.0
1503.8
300.0
306.2
1506.9
18.6
16
17
17
17
56
1
18
22
45
29
3
37
16.9
17.0
17.3
17.4
0.0
1505.0
304.7
0.0
301.2
1504.5
0
1503.9
298.1
304.6
1505.4
1500.3
300.6
0.0
303.9
1507.5
-39.2
-26.6
56.6
62.9
-58.1
-57.9
-0.8
2016-127
2016-127
2016-127
2016-127
0.0
1502.4
302.9
303.3
1506.5
1501.2
304.2
335.0
1509.4
1503.6
300.8
324.8
1509.3
1504.1
300.3
0.0
304.2
1508.9
390.0
Rate
km/s
dlat
mean_lat
occ
-4.80 -11.0872
Priority
32.9517
2
4.78
12.0
26.1
1
-3.08
-23.8
57.4
3
25.3
45.3
3
-3.4477 -53.8722
2
392.0
3.07
232
-5.16
226.0
5.20
0.8
67.4
1
222.0
-5.42
1.0
-65.1
1
218.0
5.43
-1.5
57.7
1
220.0
-5.47
1.0
-65.0
1
220.0
5.48
-1.7
56.8
1
416.0
-2.89
-0.7
-63.8
3
382
3.15
-4.6078
50.3921
2
400.0
-3.01
-12.6
-32.9
3
374
3.21
-6.3747 59.76135
2
282.0
-4.25
-0.2
-58.0
3
270.0
5.58
-58.9
29.5
1
284.0
-4.24
-4.2
-60.8
3
274.0
4.38
-8.1
43.3
1
Specifics
• ‘Penciled-in’ opportunities
– T78 Low/mid latitude, early opportunity, CIRS
and CAPS get most of the time
– T103 High latitude in both hemispheres, good
stellar occ
– T116 High priority stellar occs, and high
priority solar occs for VIMS
– T118 joint with INMS
– Star occs outside of +- 2 hr. on T101, 105, 116