2010AJ....140.1569C

Query : 2010AJ....140.1569C

2010AJ....140.1569C - Astron. J., 140, 1569-1578 (2010/December-0)

Cassini UVIS stellar occultation observations of saturn's rings.

COLWELL J.E., ESPOSITO L.W., JEROUSEK R.G., SREMCEVIC M., PETTIS D. and BRADLEY E.T.

Abstract (from CDS):

The Cassini spacecraft's Ultraviolet Imaging Spectrograph (UVIS) includes a high-speed photometer (HSP) that has observed more than 100 stellar occultations by Saturn's rings. Here, we document a standardized technique applied to the UVIS-HSP ring occultation datasets delivered to the Planetary Data System as higher level data products. These observations provide measurements of ring structure that approaches the scale of the largest common ring particles (∼5 m). The combination of multiple occultations at different viewing geometries enables reconstruction of the three-dimensional structure of the rings. This inversion of the occultation data depends on accurate calibration of the data so that occultations of different stars taken at different times and under different viewing conditions can be combined to retrieve ring structure. We provide examples of the structure of the rings as seen from several occultations at different incidence angles to the rings, illustrating changes in the apparent structure with viewing geometry.

Abstract Copyright: ∼

Journal keyword(s): instrumentation: photometers - methods: observational - planets and satellites: rings - space vehicles: instruments

Simbad objects: 54

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Number of rows : 54
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 * gam Peg bC* 00 13 14.1523490172 +15 11 00.954346538 1.75 2.61 2.84 2.94 3.13 B2IV 693 0
2 * gam Cas HXB 00 56 42.5310945 +60 43 00.264089 1.18 2.29 2.39 2.32 2.40 B0.5IVpe 1208 0
3 * eps Cas Be* 01 54 23.7340861680 +63 40 12.360238788 2.61 3.22 3.37 3.40 3.52 B3Vp_sh 195 0
4 * ksi02 Cet * 02 28 09.5570589539 +08 27 36.216809306 4.14 4.25 4.30 4.29 4.34 B9III 336 0
5 * lam Cet * 02 59 42.8925388548 +08 54 26.589196584 4.13 4.58 4.70 4.72 4.70 B6III 99 0
6 * bet Per EB* 03 08 10.1324535 +40 57 20.328013 1.70 2.07 2.12 2.08 2.11 B8V 1219 1
7 * del Per Be* 03 42 55.4928046977 +47 47 14.988257477 2.38 2.89 3.01 2.99 3.10 B5III 319 0
8 * zet Per s*b 03 54 07.9224751 +31 53 01.081262 2.19 2.97 2.85 2.71 2.62 B1Ib 856 0
9 * pi.04 Ori SB* 04 51 12.3657730111 +05 36 18.373859886 2.700 3.500 3.680 3.74 3.90 B2III 308 0
10 * zet Ori ** 05 40 45.52666 -01 56 33.2649 0.50 1.56 1.77 1.85 2.05 O9.7Ib+B0III 357 0
11 * 126 Tau ** 05 41 17.7176759 +16 32 02.925299 4.1 4.709 4.836     B3IV 164 0
12 * gam Cnc PM* 08 43 17.1471415051 +21 28 06.595679965   4.670 4.652   4.64 A1IV 114 0
13 * tet Hya SB* 09 14 21.8600711562 +02 18 51.551915906   3.82   3.9   B9.5V+DA1.6 214 0
14 * alf Sex * 10 07 56.2837668024 -00 22 18.013326564   4.45 4.49     A0III 100 0
15 * alf Leo PM* 10 08 22.31099 +11 58 01.9516 0.88 1.24 1.40 1.37 1.47 B8IVn 854 1
16 * bet Hya a2* 11 52 54.52149 -33 54 29.2672 3.85 4.18 4.28 4.27 4.35 kB8hB8HeA0VSi 101 0
17 * del Cen Be* 12 08 21.4976373 -50 43 20.738614 1.51 2.39 2.52 2.48 2.62 B2Vne 309 0
18 * alf Cru SB* 12 26 35.89522 -63 05 56.7343           B0.5IV+B1V 90 0
19 * bet Cru bC* 12 47 43.26877 -59 41 19.5792 0.03 1.02 1.25 1.38 1.64 B1IV 342 1
20 * iot Cen PM* 13 20 35.8128156095 -36 42 44.296492410 2.77 2.76 2.73 2.68 2.69 kA1.5hA3mA3Va 209 0
21 * alf Vir bC* 13 25 11.57937 -11 09 40.7501 -0.20 0.74 0.97 1.06 1.30 B1V 855 2
22 * eps Cen bC* 13 39 53.25774 -53 27 59.0081 1.16 2.08 2.30 2.45 2.70 B1III 250 0
23 * nu. Cen bC* 13 49 30.2765077433 -41 41 15.750707249 2.31 3.188 3.386     B2V 198 0
24 * mu. Cen Be* 13 49 36.9886872492 -42 28 25.440271450 2.37 3.27 3.43 3.41 3.50 B2Vnpe 434 0
25 * 3 Cen ** 13 51 49.60136 -32 59 38.7067           B5III+B9IV 248 0
26 * zet Cen SB* 13 55 32.38565 -47 17 18.1482 1.42 2.33 2.55 2.69 2.89 B2.5IV 176 0
27 * bet Cen bC* 14 03 49.40535 -60 22 22.9266     0.58     B1III 361 0
28 * chi Cen bC* 14 06 02.7680367867 -41 10 46.678474802 3.4 4.155 4.343     B2V 219 1
29 * psi Cen PM* 14 20 33.4323959808 -37 53 07.051432557 3.91 4.006 4.034 6.13 8.45 A0IV 104 0
30 * alf Lup bC* 14 41 55.7557866 -47 23 17.515486 1.22 2.126 2.286     B1.5III 237 0
31 * b Cen ** 14 41 57.5905450998 -37 47 36.580200460 3.14 3.83 4.00 4.11 4.26 B2.5V 145 0
32 * bet Lup PM* 14 58 31.92536 -43 08 02.2699 1.59 2.46 2.68 2.78 2.95 B2III 188 0
33 * kap Cen bC* 14 59 09.6849382 -42 06 15.106919 2.15 2.93 3.11     B2IV 203 0
34 * bet Lib PM* 15 17 00.41382 -09 22 58.4919 2.14 2.51 2.62 2.67 2.76 B8Vn 272 0
35 * del Lup bC* 15 21 22.3138254072 -40 38 51.109328940 2.12 2.995 3.190     B1.5IV 220 0
36 * eps Lup bC* 15 22 40.8682566 -44 41 22.614637 2.46 3.191 3.366     B3IV+B3:V 181 0
37 * gam Lup El* 15 35 08.44835 -41 10 00.3247 1.76 2.586 2.765     B2IV 178 0
38 * eta Lup bC? 16 00 07.3279160436 -38 23 48.138224969 2.36 3.19 3.41     B2.5IV 166 0
39 * alf Sco B Em* 16 29 24.20 -26 25 51.0   5.0 5.2     B2.5V 116 0
40 * zet Oph Be* 16 37 09.5400587698 -10 34 01.509742704 1.73 2.58 2.56 2.46 2.50 O9.2IVnn 1839 0
41 * mu. Sco ** 16 51 52.24 -38 02 50.4           ~ 8 0
42 * gam Ara Be* 17 25 23.6593111 -56 22 39.814775 2.25 3.21 3.34     B1Ib 273 0
43 * alf Ara Be* 17 31 50.4915282 -49 52 34.122041 2.09 2.78 2.95 3.05 3.29 B2Vne 255 0
44 * lam Sco bC* 17 33 36.52012 -37 06 13.7648 0.52 1.49 1.63     B2IV+DA7.9 391 0
45 * tet Ara s*b 18 06 37.8681946272 -50 05 29.327579099 2.73 3.58 3.66     B0.5Iab 193 0
46 * mu. Sgr s*b 18 13 45.8088401 -21 03 31.794073 3.60 4.07 3.85 3.58 3.38 B8Iab(e) 343 0
47 * sig Sgr ** 18 55 15.92650 -26 17 48.2068 1.06 1.923 2.067     B2.5V 269 1
48 * eps Mic PM* 21 17 56.2861165716 -32 10 21.171651057   4.771 4.708     A0V 85 0
49 * gam Gru PM* 21 53 55.7163006264 -37 21 53.539981264 2.52 2.89 3.01 3.06 3.12 B8IV-Vs 137 0
50 * mu. PsA PM* 22 08 23.0113421424 -32 59 18.491668224 4.60 4.55 4.50 4.43 4.38 A1.5IVn 126 0
51 * bet PsA PM* 22 31 30.3305233469 -32 20 45.871070532 4.32 4.30 4.29 4.27 4.25 A1Va 95 0
52 * eps PsA Be* 22 40 39.3482564136 -27 02 37.015051704 3.69 4.071 4.177     B7III 156 0
53 * del Aqr PM* 22 54 39.0062577912 -15 49 14.950434720 3.41 3.33 3.28 3.21 3.17 A3Vp 160 0
54 * alf Peg PM* 23 04 45.65345 +15 12 18.9617 2.38 2.44 2.48 2.47 2.50 B9III 353 0

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