Cora»OccDetail

Stellar Occultation by (171) Ophelia on 2023-07-21 (21:16:12 UT)

Event Details
Occultation UUID [and db] : 5dab10c0-ddb0-11f0-547e-64fcfdbb7758 [observed] Occultation Date + Time : 2023-07-21 at 21:16:12 UT +/- 0.01 min [1] Object Designation : (171) Ophelia Star Designation : GDR3 4116871911616480768 Star Coordinates (ICRF) : RA = 17 42 16.3510, DE = -23 04 30.255 [2] Star Magnitudes : G = 14.28 mag, RP = 13.19 mag, BP = 15.47 mag Object Magnitude : V = 13.73 mag Estimated Magnitude Drop : 0.5 mag Estimated Max. Duration : 13.4 sec Speed of the shadow : 8.7 km/s Object Mean Diameter : 116.7 km (src: astorb) => apparent = 67 mas Apparent Motion : 0.3017 arcs/min @ PA = 267 deg Horizontal Parallax : 3.6830 arcs Dynamical Class : MBA Elongation to Moon & Sun : 102° (sunlit = 15%), Sun = 147° Cross-track uncertainty : 0.7 mas = 1 km = 0.01 path-width (1-sig) RUWE and duplicate source : 0.93 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL157 Note : FP:true Object is a <Gaia mass determination> target ! [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and db] : 5dab10c0-ddb0-11f0-547e-64fcfdbb7758 [observed]

 Occultation Date + Time   : 2023-07-21 at 21:16:12 UT +/- 0.01 min  [1]
 Object Designation        : (171) Ophelia
 Star Designation          : GDR3 4116871911616480768
 Star Coordinates (ICRF)   : RA = 17 42 16.3510, DE = -23 04 30.255  [2]
 Star Magnitudes           : G = 14.28 mag, RP = 13.19 mag, BP = 15.47 mag
 Object Magnitude          : V = 13.73 mag
 Estimated Magnitude Drop  : 0.5 mag
 Estimated Max. Duration   : 13.4 sec
 Speed of the shadow       : 8.7 km/s
 Object Mean Diameter      : 116.7 km  (src: astorb) => apparent = 67 mas
 Apparent Motion           : 0.3017 arcs/min @ PA = 267 deg
 Horizontal Parallax       : 3.6830 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 102° (sunlit = 15%), Sun = 147°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.93 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL157
 Note                      : FP:true

 Object is a <Gaia mass determination> target !

 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

More Data and Informations

SiMDA \| 3D Asteroid Catalogue \| Johnston Archive \| Star at CDS (Vizier) \| JPL Small-Body Node \| Minor Planet Center \| Wikipedia

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Interactive map

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Aladin Lite direct link (has Gaia overlay)

Occultation Ground Track
Time[UT] \| Lat----CENTR----Lon \| Alt hh:mm:ss \| +DD.dddd +DDD.dddd \| deg ---------------------------------------------- 21:12:59 +62.1134 +034.1531 +02 204 -07 21:13:02 +60.9197 +032.4530 +04 202 -08 21:13:06 +60.0973 +031.1734 +05 201 -09 21:13:10 +59.4405 +030.0825 +06 200 -09 21:13:13 +58.8837 +029.1058 +06 199 -10 21:13:17 +58.3959 +028.2081 +07 198 -10 21:13:21 +57.9597 +027.3691 +07 198 -11 21:13:24 +57.5638 +026.5760 +08 197 -11 21:13:28 +57.2006 +025.8201 +08 196 -11 21:13:32 +56.8649 +025.0949 +09 196 -11 21:13:35 +56.5525 +024.3958 +09 195 -11 21:13:39 +56.2603 +023.7191 +10 195 -12 21:13:43 +55.9859 +023.0619 +10 194 -12 21:13:46 +55.7273 +022.4218 +10 193 -12 21:13:50 +55.4829 +021.7970 +11 193 -12 21:13:54 +55.2514 +021.1858 +11 192 -12 21:13:57 +55.0316 +020.5869 +11 192 -12 21:14:01 +54.8226 +019.9990 +11 191 -12 21:14:05 +54.6235 +019.4212 +12 191 -12 21:14:09 +54.4337 +018.8525 +12 190 -12 21:14:12 +54.2525 +018.2922 +12 190 -12 21:14:16 +54.0794 +017.7397 +12 189 -12 21:14:20 +53.9139 +017.1942 +13 189 -12 21:14:23 +53.7555 +016.6552 +13 188 -12 21:14:27 +53.6039 +016.1223 +13 188 -12 21:14:31 +53.4588 +015.5950 +13 187 -12 21:14:34 +53.3198 +015.0729 +13 187 -12 21:14:38 +53.1867 +014.5555 +14 186 -12 21:14:42 +53.0592 +014.0426 +14 186 -12 21:14:45 +52.9371 +013.5338 +14 185 -12 21:14:49 +52.8202 +013.0289 +14 185 -12 21:14:53 +52.7083 +012.5275 +14 184 -12 21:14:56 +52.6013 +012.0294 +14 184 -12 21:15:00 +52.4989 +011.5344 +14 184 -12 21:15:04 +52.4010 +011.0422 +14 183 -12 21:15:07 +52.3076 +010.5527 +15 183 -12 21:15:11 +52.2184 +010.0655 +15 182 -12 21:15:15 +52.1335 +009.5806 +15 182 -12 21:15:18 +52.0526 +009.0977 +15 181 -12 21:15:22 +51.9757 +008.6166 +15 181 -12 21:15:26 +51.9027 +008.1373 +15 180 -12 21:15:29 +51.8336 +007.6595 +15 180 -12 21:15:33 +51.7682 +007.1830 +15 180 -11 21:15:37 +51.7065 +006.7078 +15 179 -11 21:15:40 +51.6485 +006.2337 +15 179 -11 21:15:44 +51.5941 +005.7605 +15 178 -11 21:15:48 +51.5432 +005.2880 +15 178 -11 21:15:51 +51.4958 +004.8163 +15 177 -11 21:15:55 +51.4520 +004.3450 +15 177 -11 21:15:59 +51.4116 +003.8742 +15 176 -11 21:16:02 +51.3746 +003.4036 +15 176 -10 21:16:06 +51.3410 +002.9332 +15 176 -10 21:16:10 +51.3108 +002.4627 +15 175 -10 21:16:13 +51.2840 +001.9921 +15 175 -10 21:16:17 +51.2606 +001.5213 +15 174 -10 21:16:21 +51.2406 +001.0501 +15 174 -10 21:16:24 +51.2239 +000.5783 +15 173 -10 21:16:28 +51.2106 +000.1059 +15 173 -09 21:16:32 +51.2007 -000.3672 +15 173 -09 21:16:35 +51.1942 -000.8413 +15 172 -09 21:16:39 +51.1912 -001.3165 +15 172 -09 21:16:43 +51.1915 -001.7928 +15 171 -09 21:16:46 +51.1954 -002.2705 +15 171 -08 21:16:50 +51.2027 -002.7496 +15 170 -08 21:16:54 +51.2137 -003.2304 +15 170 -08 21:16:58 +51.2282 -003.7130 +15 170 -08 21:17:01 +51.2463 -004.1975 +15 169 -08 21:17:05 +51.2682 -004.6842 +15 169 -07 21:17:09 +51.2938 -005.1732 +15 168 -07 21:17:12 +51.3232 -005.6647 +15 168 -07 21:17:16 +51.3566 -006.1588 +15 167 -07 21:17:20 +51.3940 -006.6558 +15 167 -06 21:17:23 +51.4354 -007.1560 +14 166 -06 21:17:27 +51.4810 -007.6595 +14 166 -06 21:17:31 +51.5310 -008.1665 +14 165 -06 21:17:34 +51.5853 -008.6774 +14 165 -05 21:17:38 +51.6442 -009.1924 +14 165 -05 21:17:42 +51.7079 -009.7118 +14 164 -05 21:17:45 +51.7764 -010.2359 +14 164 -05 21:17:49 +51.8500 -010.7650 +13 163 -04 21:17:53 +51.9289 -011.2996 +13 163 -04 21:17:56 +52.0132 -011.8401 +13 162 -04 21:18:00 +52.1033 -012.3868 +13 162 -03 21:18:04 +52.1994 -012.9403 +13 161 -03 21:18:07 +52.3019 -013.5010 +13 161 -03 21:18:11 +52.4110 -014.0697 +12 160 -02 21:18:15 +52.5272 -014.6469 +12 160 -02 21:18:18 +52.6509 -015.2334 +12 159 -02 21:18:22 +52.7826 -015.8300 +12 159 -01 21:18:26 +52.9229 -016.4377 +11 158 -01 21:18:29 +53.0724 -017.0575 +11 158 -01 21:18:33 +53.2320 -017.6906 +11 157 +00 21:18:37 +53.4024 -018.3386 +10 157 +00 21:18:40 +53.5848 -019.0031 +10 156 +01 21:18:44 +53.7805 -019.6862 +10 155 +01 21:18:48 +53.9909 -020.3902 +09 155 +01 21:18:51 +54.2179 -021.1181 +09 154 +02 21:18:55 +54.4640 -021.8737 +09 153 +02 21:18:59 +54.7320 -022.6618 +08 153 +03 21:19:02 +55.0261 -023.4885 +08 152 +04 21:19:06 +55.3515 -024.3624 +07 151 +04 21:19:10 +55.7160 -025.2953 +07 151 +05 21:19:13 +56.1312 -026.3055 +06 150 +05 21:19:17 +56.6159 -027.4224 +05 149 +06 21:19:21 +57.2056 -028.7010 +04 148 +07 21:19:24 +57.9838 -030.2707 +03 146 +08 21:19:28 +59.3247 -032.7109 +01 144 +10 Longitude measured positiv to the East.

Occultation Ground Track

 Time[UT] | Lat----CENTR----Lon | Alt hh:mm:ss | +DD.dddd  +DDD.dddd | deg ---------------------------------------------- 21:12:59   +62.1134  +034.1531   +02  204  -07 21:13:02   +60.9197  +032.4530   +04  202  -08 21:13:06   +60.0973  +031.1734   +05  201  -09 21:13:10   +59.4405  +030.0825   +06  200  -09 21:13:13   +58.8837  +029.1058   +06  199  -10 21:13:17   +58.3959  +028.2081   +07  198  -10 21:13:21   +57.9597  +027.3691   +07  198  -11 21:13:24   +57.5638  +026.5760   +08  197  -11 21:13:28   +57.2006  +025.8201   +08  196  -11 21:13:32   +56.8649  +025.0949   +09  196  -11 21:13:35   +56.5525  +024.3958   +09  195  -11 21:13:39   +56.2603  +023.7191   +10  195  -12 21:13:43   +55.9859  +023.0619   +10  194  -12 21:13:46   +55.7273  +022.4218   +10  193  -12 21:13:50   +55.4829  +021.7970   +11  193  -12 21:13:54   +55.2514  +021.1858   +11  192  -12 21:13:57   +55.0316  +020.5869   +11  192  -12 21:14:01   +54.8226  +019.9990   +11  191  -12 21:14:05   +54.6235  +019.4212   +12  191  -12 21:14:09   +54.4337  +018.8525   +12  190  -12 21:14:12   +54.2525  +018.2922   +12  190  -12 21:14:16   +54.0794  +017.7397   +12  189  -12 21:14:20   +53.9139  +017.1942   +13  189  -12 21:14:23   +53.7555  +016.6552   +13  188  -12 21:14:27   +53.6039  +016.1223   +13  188  -12 21:14:31   +53.4588  +015.5950   +13  187  -12 21:14:34   +53.3198  +015.0729   +13  187  -12 21:14:38   +53.1867  +014.5555   +14  186  -12 21:14:42   +53.0592  +014.0426   +14  186  -12 21:14:45   +52.9371  +013.5338   +14  185  -12 21:14:49   +52.8202  +013.0289   +14  185  -12 21:14:53   +52.7083  +012.5275   +14  184  -12 21:14:56   +52.6013  +012.0294   +14  184  -12 21:15:00   +52.4989  +011.5344   +14  184  -12 21:15:04   +52.4010  +011.0422   +14  183  -12 21:15:07   +52.3076  +010.5527   +15  183  -12 21:15:11   +52.2184  +010.0655   +15  182  -12 21:15:15   +52.1335  +009.5806   +15  182  -12 21:15:18   +52.0526  +009.0977   +15  181  -12 21:15:22   +51.9757  +008.6166   +15  181  -12 21:15:26   +51.9027  +008.1373   +15  180  -12 21:15:29   +51.8336  +007.6595   +15  180  -12 21:15:33   +51.7682  +007.1830   +15  180  -11 21:15:37   +51.7065  +006.7078   +15  179  -11 21:15:40   +51.6485  +006.2337   +15  179  -11 21:15:44   +51.5941  +005.7605   +15  178  -11 21:15:48   +51.5432  +005.2880   +15  178  -11 21:15:51   +51.4958  +004.8163   +15  177  -11 21:15:55   +51.4520  +004.3450   +15  177  -11 21:15:59   +51.4116  +003.8742   +15  176  -11 21:16:02   +51.3746  +003.4036   +15  176  -10 21:16:06   +51.3410  +002.9332   +15  176  -10 21:16:10   +51.3108  +002.4627   +15  175  -10 21:16:13   +51.2840  +001.9921   +15  175  -10 21:16:17   +51.2606  +001.5213   +15  174  -10 21:16:21   +51.2406  +001.0501   +15  174  -10 21:16:24   +51.2239  +000.5783   +15  173  -10 21:16:28   +51.2106  +000.1059   +15  173  -09 21:16:32   +51.2007  -000.3672   +15  173  -09 21:16:35   +51.1942  -000.8413   +15  172  -09 21:16:39   +51.1912  -001.3165   +15  172  -09 21:16:43   +51.1915  -001.7928   +15  171  -09 21:16:46   +51.1954  -002.2705   +15  171  -08 21:16:50   +51.2027  -002.7496   +15  170  -08 21:16:54   +51.2137  -003.2304   +15  170  -08 21:16:58   +51.2282  -003.7130   +15  170  -08 21:17:01   +51.2463  -004.1975   +15  169  -08 21:17:05   +51.2682  -004.6842   +15  169  -07 21:17:09   +51.2938  -005.1732   +15  168  -07 21:17:12   +51.3232  -005.6647   +15  168  -07 21:17:16   +51.3566  -006.1588   +15  167  -07 21:17:20   +51.3940  -006.6558   +15  167  -06 21:17:23   +51.4354  -007.1560   +14  166  -06 21:17:27   +51.4810  -007.6595   +14  166  -06 21:17:31   +51.5310  -008.1665   +14  165  -06 21:17:34   +51.5853  -008.6774   +14  165  -05 21:17:38   +51.6442  -009.1924   +14  165  -05 21:17:42   +51.7079  -009.7118   +14  164  -05 21:17:45   +51.7764  -010.2359   +14  164  -05 21:17:49   +51.8500  -010.7650   +13  163  -04 21:17:53   +51.9289  -011.2996   +13  163  -04 21:17:56   +52.0132  -011.8401   +13  162  -04 21:18:00   +52.1033  -012.3868   +13  162  -03 21:18:04   +52.1994  -012.9403   +13  161  -03 21:18:07   +52.3019  -013.5010   +13  161  -03 21:18:11   +52.4110  -014.0697   +12  160  -02 21:18:15   +52.5272  -014.6469   +12  160  -02 21:18:18   +52.6509  -015.2334   +12  159  -02 21:18:22   +52.7826  -015.8300   +12  159  -01 21:18:26   +52.9229  -016.4377   +11  158  -01 21:18:29   +53.0724  -017.0575   +11  158  -01 21:18:33   +53.2320  -017.6906   +11  157  +00 21:18:37   +53.4024  -018.3386   +10  157  +00 21:18:40   +53.5848  -019.0031   +10  156  +01 21:18:44   +53.7805  -019.6862   +10  155  +01 21:18:48   +53.9909  -020.3902   +09  155  +01 21:18:51   +54.2179  -021.1181   +09  154  +02 21:18:55   +54.4640  -021.8737   +09  153  +02 21:18:59   +54.7320  -022.6618   +08  153  +03 21:19:02   +55.0261  -023.4885   +08  152  +04 21:19:06   +55.3515  -024.3624   +07  151  +04 21:19:10   +55.7160  -025.2953   +07  151  +05 21:19:13   +56.1312  -026.3055   +06  150  +05 21:19:17   +56.6159  -027.4224   +05  149  +06 21:19:21   +57.2056  -028.7010   +04  148  +07 21:19:24   +57.9838  -030.2707   +03  146  +08 21:19:28   +59.3247  -032.7109   +01  144  +10

Longitude measured positiv to the East.

------------------------------------------------------------------------------------------- Azm Sun | Lat----EDGE1----Lon | Lat----EDGE2----Lon deg deg | +DD.dddd +DDD.dddd | +DD.dddd +DDD.dddd --------------------------------------------- +56.8334 +030.2587 -- -- +56.4318 +029.4451 -- -- +56.0621 +028.6711 -- -- +55.7191 +027.9300 -- -- +55.3991 +027.2167 -- -- +55.0989 +026.5275 -- -- +54.8163 +025.8593 -- -- +54.5493 +025.2096 +63.2477 +030.1822 +54.2962 +024.5763 +62.0152 +028.5795 +54.0559 +023.9577 +61.1983 +027.3830 +53.8271 +023.3524 +60.5540 +026.3578 +53.6090 +022.7591 +60.0118 +025.4346 +53.4007 +022.1768 +59.5393 +024.5813 +53.2015 +021.6044 +59.1185 +023.7800 +53.0108 +021.0412 +58.7379 +023.0191 +52.8280 +020.4865 +58.3901 +022.2909 +52.6527 +019.9396 +58.0695 +021.5899 +52.4845 +019.3998 +57.7721 +020.9117 +52.3229 +018.8668 +57.4949 +020.2533 +52.1676 +018.3400 +57.2354 +019.6120 +52.0184 +017.8189 +56.9917 +018.9857 +51.8748 +017.3032 +56.7622 +018.3728 +51.7368 +016.7926 +56.5455 +017.7717 +51.6039 +016.2866 +56.3406 +017.1814 +51.4762 +015.7850 +56.1464 +016.6006 +51.3532 +015.2875 +55.9623 +016.0286 +51.2350 +014.7939 +55.7875 +015.4645 +51.1212 +014.3038 +55.6213 +014.9076 +51.0118 +013.8170 +55.4634 +014.3573 +50.9067 +013.3334 +55.3131 +013.8130 +50.8056 +012.8528 +55.1702 +013.2743 +50.7086 +012.3748 +55.0342 +012.7406 +50.6154 +011.8995 +54.9047 +012.2115 +50.5260 +011.4265 +54.7816 +011.6868 +50.4402 +010.9557 +54.6645 +011.1659 +50.3581 +010.4869 +54.5533 +010.6486 +50.2795 +010.0201 +54.4476 +010.1346 +50.2044 +009.5550 +54.3474 +009.6236 +50.1327 +009.0916 +54.2524 +009.1154 +50.0643 +008.6296 +54.1625 +008.6096 +49.9992 +008.1690 +54.0775 +008.1060 +49.9373 +007.7096 +53.9974 +007.6045 +49.8786 +007.2514 +53.9220 +007.1047 +49.8231 +006.7941 +53.8511 +006.6066 +49.7706 +006.3377 +53.7848 +006.1098 +49.7212 +005.8821 +53.7230 +005.6143 +49.6749 +005.4271 +53.6655 +005.1197 +49.6315 +004.9727 +53.6122 +004.6260 +49.5912 +004.5187 +53.5633 +004.1329 +49.5538 +004.0651 +53.5185 +003.6403 +49.5193 +003.6116 +53.4779 +003.1480 +49.4878 +003.1583 +53.4415 +002.6558 +49.4593 +002.7050 +53.4091 +002.1636 +49.4336 +002.2517 +53.3809 +001.6712 +49.4108 +001.7981 +53.3567 +001.1784 +49.3910 +001.3443 +53.3366 +000.6851 +49.3740 +000.8900 +53.3206 +000.1910 +49.3600 +000.4353 +53.3087 -000.3040 +49.3489 -000.0200 +53.3009 -000.8000 +49.3407 -000.4761 +53.2972 -001.2973 +49.3354 -000.9330 +53.2977 -001.7960 +49.3331 -001.3908 +53.3024 -002.2964 +49.3338 -001.8496 +53.3114 -002.7985 +49.3375 -002.3097 +53.3246 -003.3028 +49.3442 -002.7709 +53.3423 -003.8092 +49.3539 -003.2336 +53.3644 -004.3181 +49.3667 -003.6979 +53.3911 -004.8298 +49.3827 -004.1637 +53.4224 -005.3443 +49.4018 -004.6314 +53.4584 -005.8621 +49.4242 -005.1010 +53.4993 -006.3834 +49.4497 -005.5726 +53.5452 -006.9084 +49.4787 -006.0465 +53.5963 -007.4375 +49.5109 -006.5227 +53.6527 -007.9710 +49.5467 -007.0015 +53.7146 -008.5093 +49.5859 -007.4830 +53.7822 -009.0528 +49.6287 -007.9673 +53.8558 -009.6019 +49.6752 -008.4548 +53.9356 -010.1571 +49.7255 -008.9455 +54.0219 -010.7188 +49.7797 -009.4398 +54.1151 -011.2877 +49.8378 -009.9377 +54.2155 -011.8643 +49.9000 -010.4396 +54.3236 -012.4494 +49.9665 -010.9457 +54.4398 -013.0438 +50.0373 -011.4564 +54.5647 -013.6483 +50.1127 -011.9718 +54.6989 -014.2640 +50.1928 -012.4923 +54.8433 -014.8921 +50.2778 -013.0183 +54.9987 -015.5338 +50.3678 -013.5501 +55.1661 -016.1909 +50.4632 -014.0882 +55.3468 -016.8651 +50.5642 -014.6330 +55.5423 -017.5589 +50.6710 -015.1850 +55.7544 -018.2750 +50.7841 -015.7447 +55.9856 -019.0169 +50.9036 -016.3128 +56.2389 -019.7892 +51.0300 -016.8898 +56.5182 -020.5977 +51.1638 -017.4767 +56.8290 -021.4504 +51.3055 -018.0742 +57.1792 -022.3589 +51.4556 -018.6832 +57.5805 -023.3403 +51.6147 -019.3049 +58.0526 -024.4236 +51.7837 -019.9406 +58.6332 -025.6630 +51.9634 -020.5917 +59.4145 -027.1922 +52.1549 -021.2600 +60.9123 -029.7528 +52.3593 -021.9475 -- -- +52.5783 -022.6567 -- -- +52.8136 -023.3906 -- -- +53.0675 -024.1530 -- -- +53.3429 -024.9487 -- -- +53.6436 -025.7839 -- -- +53.9748 -026.6670 -- -- Azimuth (Azm) measured from North to East.

Apply ephem. offset (O-C) in RA & DE and CTU:
CTU: Cross-track uncertainty (zero means: use the nominal prediction value, see event details below). Offsets and CTU all in mas.