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 - 2026 		#notes
1 * gam Peg bC* 00 13 14.1523490172 +15 11 00.954346538 1.75 2.61 2.84 2.94 3.13 B2IV 720 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 1253 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 207 0
4 * ksi02 Cet * 02 28 09.5570589539 +08 27 36.216809306 4.14 4.25 4.30 4.29 4.34 B9III 352 0
5 * lam Cet * 02 59 42.8925388548 +08 54 26.589196584 4.13 4.58 4.70 4.72 4.70 B6III 105 0
6 * bet Per SB* 03 08 10.1324535 +40 57 20.328013 1.70 2.07 2.12 2.08 2.11 B8V 1265 1
7 * del Per Be* 03 42 55.4928046977 +47 47 14.988257477 2.38 2.89 3.01 2.99 3.10 B5III 328 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 881 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 319 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 375 0
11 * 126 Tau ** 05 41 17.7176759 +16 32 02.925299 4.1 4.709 4.836     B3IV 169 0
12 * gam Cnc PM* 08 43 17.1471415051 +21 28 06.595679965   4.670 4.652   4.64 A1Va 121 0
13 * tet Hya SB* 09 14 21.8600711562 +02 18 51.551915906   3.82   3.9   B9.5V+DA1.6 224 0
14 * alf Sex * 10 07 56.2837668024 -00 22 18.013326564   4.45 4.49     A0III 105 0
15 * alf Leo PM* 10 08 22.31099 +11 58 01.9516 0.88 1.24 1.40 1.37 1.47 B8IVn 891 1
16 * bet Hya a2* 11 52 54.52149 -33 54 29.2672 3.85 4.18 4.28 4.27 4.35 kB8hB8HeA0VSi 110 0
17 * del Cen Be* 12 08 21.4976373 -50 43 20.738614 1.51 2.39 2.52 2.48 2.62 B2Vne 320 0
18 * alf Cru SB* 12 26 35.89522 -63 05 56.7343           B0.5IV+B1V 99 0
19 * bet Cru bC* 12 47 43.26877 -59 41 19.5792 0.03 1.02 1.25 1.38 1.64 B1IV 360 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 218 0
21 * alf Vir bC* 13 25 11.57937 -11 09 40.7501 -0.20 0.74 0.97 1.06 1.30 B1V 877 1
22 * eps Cen bC* 13 39 53.25774 -53 27 59.0081 1.16 2.08 2.30 2.45 2.70 B1III 259 0
23 * nu. Cen bC* 13 49 30.2765077433 -41 41 15.750707249 2.31 3.188 3.386     B2V 213 0
24 * mu. Cen Be* 13 49 36.9886872492 -42 28 25.440271450 2.37 3.27 3.43 3.41 3.50 B2Vnpe 453 0
25 * 3 Cen ** 13 51 49.60136 -32 59 38.7067           B5III+B9IV 256 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 184 0
27 * bet Cen bC* 14 03 49.40535 -60 22 22.9266     0.58     B1III 371 0
28 * chi Cen bC* 14 06 02.7680367867 -41 10 46.678474802 3.4 4.155 4.343     B2V 231 1
29 * psi Cen PM* 14 20 33.4323959808 -37 53 07.051432557 3.91 4.006 4.034 6.13 8.45 A0IV 113 0
30 * alf Lup bC* 14 41 55.7557866 -47 23 17.515486 1.22 2.126 2.286     B1.5III 247 0
31 * b Cen ** 14 41 57.5905450998 -37 47 36.580200460 3.14 3.83 4.00 4.11 4.26 B2.5V 159 0
32 * bet Lup ** 14 58 31.92536 -43 08 02.2699 1.59 2.46 2.68 2.78 2.95 B2IV 197 0
33 * kap Cen bC* 14 59 09.6849382 -42 06 15.106919 2.15 2.93 3.11     B2IV 212 0
34 * bet Lib PM* 15 17 00.41382 -09 22 58.4919 2.14 2.51 2.62 2.67 2.76 B8Vn 283 0
35 * del Lup bC* 15 21 22.3138254072 -40 38 51.109328940 2.12 2.995 3.190     B1.5IV 230 0
36 * eps Lup bC* 15 22 40.8682566 -44 41 22.614637 2.46 3.191 3.366     B3IV+B3:V 193 0
37 * gam Lup ** 15 35 08.44835 -41 10 00.3247 1.76 2.586 2.765     B2IV 187 0
38 * eta Lup bC? 16 00 07.3279160436 -38 23 48.138224969 2.36 3.19 3.41     B2.5IV 186 0
39 * alf Sco B Em* 16 29 24.20 -26 25 51.0   5.0 5.2     B2.5V 119 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 1908 0
41 * mu. Sco ** 16 51 52.24 -38 02 50.4           ~ 10 0
42 * gam Ara Be* 17 25 23.6593111 -56 22 39.814775 2.25 3.21 3.34     B1Ib 281 0
43 * alf Ara Be* 17 31 50.4915282 -49 52 34.122041 2.09 2.78 2.95 3.05 3.29 B2Vne 269 0
44 * lam Sco bC* 17 33 36.52012 -37 06 13.7648 0.52 1.49 1.63     B2IV+DA7.9 404 0
45 * tet Ara s*b 18 06 37.8681946272 -50 05 29.327579099 2.73 3.58 3.66     B0.5Iab 201 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) 354 0
47 * sig Sgr ** 18 55 15.92650 -26 17 48.2068 1.06 1.923 2.067     B2.5V 284 1
48 * eps Mic PM* 21 17 56.2861165716 -32 10 21.171651057   4.771 4.708     A0V 89 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 144 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 132 0
51 * bet PsA PM* 22 31 30.3305233469 -32 20 45.871070532 4.32 4.30 4.29 4.27 4.25 A1Va 102 0
52 * eps PsA Be* 22 40 39.3482564136 -27 02 37.015051704 3.69 4.071 4.177     B7III 163 0
53 * del Aqr PM* 22 54 39.0062577912 -15 49 14.950434720 3.41 3.33 3.28 3.21 3.17 A3Vp 165 0
54 * alf Peg PM* 23 04 45.65345 +15 12 18.9617 2.38 2.44 2.48 2.47 2.50 A0IV 367 0

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