Cora»OccDetail

Stellar Occultation by (856) Backlunda on 2023-07-11 (20:11:56 UT)

Event Details
Occultation UUID [and db] : d84dfec0-ddb3-11f0-547e-eac23e9f1c62 [observed] Occultation Date + Time : 2023-07-11 at 20:11:56 UT +/- 0.0 min [1] Object Designation : (856) Backlunda Star Designation : GDR3 4102090798798567680 Star Coordinates (ICRF) : RA = 18 50 53.7918, DE = -14 06 51.848 [2] Star Magnitudes : G = 13.77 mag, RP = 13.08 mag, BP = 14.29 mag Object Magnitude : V = 13.89 mag Estimated Magnitude Drop : 0.8 mag Estimated Max. Duration : 4.6 sec Speed of the shadow : 11.3 km/s Object Mean Diameter : 52.0 km (src: astorb) => apparent = 52 mas Apparent Motion : 0.6800 arcs/min @ PA = 239 deg Horizontal Parallax : 6.3860 arcs Dynamical Class : MBA Elongation to Moon & Sun : 118° (sunlit = 31%), Sun = 169° Cross-track uncertainty : 0.4 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.73 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#112 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and db] : d84dfec0-ddb3-11f0-547e-eac23e9f1c62 [observed]

 Occultation Date + Time   : 2023-07-11 at 20:11:56 UT +/- 0.0 min  [1]
 Object Designation        : (856) Backlunda
 Star Designation          : GDR3 4102090798798567680
 Star Coordinates (ICRF)   : RA = 18 50 53.7918, DE = -14 06 51.848  [2]
 Star Magnitudes           : G = 13.77 mag, RP = 13.08 mag, BP = 14.29 mag
 Object Magnitude          : V = 13.89 mag
 Estimated Magnitude Drop  : 0.8 mag
 Estimated Max. Duration   : 4.6 sec
 Speed of the shadow       : 11.3 km/s
 Object Mean Diameter      : 52.0 km  (src: astorb) => apparent = 52 mas
 Apparent Motion           : 0.6800 arcs/min @ PA = 239 deg
 Horizontal Parallax       : 6.3860 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 118° (sunlit = 31%), Sun = 169°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.73 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#112
 Note                      : FP:true

 
 [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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Occultation Ground Track
Time[UT] \| Lat----CENTR----Lon \| Alt hh:mm:ss \| +DD.dddd +DDD.dddd \| deg ---------------------------------------------- 20:08:41 +69.2856 +018.7557 +04 149 +06 20:08:46 +67.1943 +020.5476 +06 150 +04 20:08:51 +65.6411 +021.3230 +07 151 +02 20:08:56 +64.3380 +021.6917 +08 151 +01 20:09:01 +63.1899 +021.8382 +09 151 +00 20:09:06 +62.1509 +021.8449 +10 151 -01 20:09:11 +61.1942 +021.7561 +11 151 -01 20:09:16 +60.3029 +021.5984 +12 151 -02 20:09:21 +59.4651 +021.3887 +13 151 -03 20:09:26 +58.6724 +021.1389 +13 150 -03 20:09:31 +57.9183 +020.8569 +14 150 -04 20:09:36 +57.1979 +020.5489 +14 150 -04 20:09:41 +56.5071 +020.2193 +15 149 -05 20:09:46 +55.8429 +019.8715 +15 149 -05 20:09:51 +55.2024 +019.5082 +16 148 -06 20:09:56 +54.5836 +019.1315 +16 148 -06 20:10:02 +53.9846 +018.7431 +17 148 -06 20:10:07 +53.4036 +018.3442 +17 147 -07 20:10:12 +52.8395 +017.9360 +17 147 -07 20:10:17 +52.2909 +017.5194 +18 146 -07 20:10:22 +51.7568 +017.0950 +18 146 -08 20:10:27 +51.2364 +016.6635 +18 145 -08 20:10:32 +50.7287 +016.2253 +19 145 -08 20:10:37 +50.2330 +015.7810 +19 144 -08 20:10:42 +49.7487 +015.3306 +19 144 -09 20:10:47 +49.2753 +014.8747 +19 143 -09 20:10:52 +48.8121 +014.4132 +19 143 -09 20:10:57 +48.3587 +013.9465 +20 142 -09 20:11:02 +47.9147 +013.4746 +20 142 -09 20:11:07 +47.4797 +012.9976 +20 141 -09 20:11:12 +47.0533 +012.5156 +20 141 -09 20:11:17 +46.6352 +012.0286 +20 140 -09 20:11:23 +46.2251 +011.5366 +20 140 -10 20:11:28 +45.8228 +011.0395 +20 139 -10 20:11:33 +45.4280 +010.5374 +20 138 -10 20:11:38 +45.0404 +010.0302 +20 138 -10 20:11:43 +44.6600 +009.5178 +21 137 -10 20:11:48 +44.2864 +009.0001 +21 137 -10 20:11:53 +43.9196 +008.4769 +21 136 -10 20:11:58 +43.5594 +007.9481 +21 136 -10 20:12:03 +43.2056 +007.4137 +21 135 -10 20:12:08 +42.8582 +006.8733 +21 135 -10 20:12:13 +42.5170 +006.3268 +21 134 -10 20:12:18 +42.1819 +005.7740 +20 134 -10 20:12:23 +41.8529 +005.2146 +20 133 -09 20:12:28 +41.5300 +004.6484 +20 132 -09 20:12:33 +41.2130 +004.0751 +20 132 -09 20:12:38 +40.9019 +003.4944 +20 131 -09 20:12:44 +40.5967 +002.9058 +20 131 -09 20:12:49 +40.2974 +002.3091 +20 130 -09 20:12:54 +40.0040 +001.7039 +20 130 -09 20:12:59 +39.7165 +001.0896 +20 129 -08 20:13:04 +39.4351 +000.4657 +19 129 -08 20:13:09 +39.1596 -000.1682 +19 128 -08 20:13:14 +38.8902 -000.8128 +19 127 -08 20:13:19 +38.6270 -001.4688 +19 127 -08 20:13:24 +38.3701 -002.1369 +18 126 -07 20:13:29 +38.1197 -002.8179 +18 126 -07 20:13:34 +37.8759 -003.5128 +18 125 -07 20:13:39 +37.6389 -004.2227 +18 125 -06 20:13:44 +37.4091 -004.9487 +17 124 -06 20:13:49 +37.1866 -005.6922 +17 123 -06 20:13:54 +36.9718 -006.4548 +17 123 -05 20:13:59 +36.7652 -007.2383 +16 122 -05 20:14:05 +36.5672 -008.0448 +16 122 -05 20:14:10 +36.3785 -008.8767 +15 121 -04 20:14:15 +36.1998 -009.7372 +15 120 -04 20:14:20 +36.0319 -010.6298 +14 120 -03 20:14:25 +35.8760 -011.5589 +14 119 -03 20:14:30 +35.7334 -012.5301 +13 118 -02 20:14:35 +35.6061 -013.5505 +12 118 -01 20:14:40 +35.4963 -014.6295 +12 117 -01 20:14:45 +35.4074 -015.7800 +11 116 +00 20:14:50 +35.3440 -017.0202 +10 115 +01 20:14:55 +35.3133 -018.3780 +09 115 +02 20:15:00 +35.3272 -019.8991 +08 114 +03 20:15:05 +35.4079 -021.6707 +07 113 +04 20:15:10 +35.6099 -023.9042 +05 111 +06 20:15:15 +36.2164 -027.7024 +02 109 +09 Longitude measured positiv to the East.

Occultation Ground Track

 Time[UT] | Lat----CENTR----Lon | Alt hh:mm:ss | +DD.dddd  +DDD.dddd | deg ---------------------------------------------- 20:08:41   +69.2856  +018.7557   +04  149  +06 20:08:46   +67.1943  +020.5476   +06  150  +04 20:08:51   +65.6411  +021.3230   +07  151  +02 20:08:56   +64.3380  +021.6917   +08  151  +01 20:09:01   +63.1899  +021.8382   +09  151  +00 20:09:06   +62.1509  +021.8449   +10  151  -01 20:09:11   +61.1942  +021.7561   +11  151  -01 20:09:16   +60.3029  +021.5984   +12  151  -02 20:09:21   +59.4651  +021.3887   +13  151  -03 20:09:26   +58.6724  +021.1389   +13  150  -03 20:09:31   +57.9183  +020.8569   +14  150  -04 20:09:36   +57.1979  +020.5489   +14  150  -04 20:09:41   +56.5071  +020.2193   +15  149  -05 20:09:46   +55.8429  +019.8715   +15  149  -05 20:09:51   +55.2024  +019.5082   +16  148  -06 20:09:56   +54.5836  +019.1315   +16  148  -06 20:10:02   +53.9846  +018.7431   +17  148  -06 20:10:07   +53.4036  +018.3442   +17  147  -07 20:10:12   +52.8395  +017.9360   +17  147  -07 20:10:17   +52.2909  +017.5194   +18  146  -07 20:10:22   +51.7568  +017.0950   +18  146  -08 20:10:27   +51.2364  +016.6635   +18  145  -08 20:10:32   +50.7287  +016.2253   +19  145  -08 20:10:37   +50.2330  +015.7810   +19  144  -08 20:10:42   +49.7487  +015.3306   +19  144  -09 20:10:47   +49.2753  +014.8747   +19  143  -09 20:10:52   +48.8121  +014.4132   +19  143  -09 20:10:57   +48.3587  +013.9465   +20  142  -09 20:11:02   +47.9147  +013.4746   +20  142  -09 20:11:07   +47.4797  +012.9976   +20  141  -09 20:11:12   +47.0533  +012.5156   +20  141  -09 20:11:17   +46.6352  +012.0286   +20  140  -09 20:11:23   +46.2251  +011.5366   +20  140  -10 20:11:28   +45.8228  +011.0395   +20  139  -10 20:11:33   +45.4280  +010.5374   +20  138  -10 20:11:38   +45.0404  +010.0302   +20  138  -10 20:11:43   +44.6600  +009.5178   +21  137  -10 20:11:48   +44.2864  +009.0001   +21  137  -10 20:11:53   +43.9196  +008.4769   +21  136  -10 20:11:58   +43.5594  +007.9481   +21  136  -10 20:12:03   +43.2056  +007.4137   +21  135  -10 20:12:08   +42.8582  +006.8733   +21  135  -10 20:12:13   +42.5170  +006.3268   +21  134  -10 20:12:18   +42.1819  +005.7740   +20  134  -10 20:12:23   +41.8529  +005.2146   +20  133  -09 20:12:28   +41.5300  +004.6484   +20  132  -09 20:12:33   +41.2130  +004.0751   +20  132  -09 20:12:38   +40.9019  +003.4944   +20  131  -09 20:12:44   +40.5967  +002.9058   +20  131  -09 20:12:49   +40.2974  +002.3091   +20  130  -09 20:12:54   +40.0040  +001.7039   +20  130  -09 20:12:59   +39.7165  +001.0896   +20  129  -08 20:13:04   +39.4351  +000.4657   +19  129  -08 20:13:09   +39.1596  -000.1682   +19  128  -08 20:13:14   +38.8902  -000.8128   +19  127  -08 20:13:19   +38.6270  -001.4688   +19  127  -08 20:13:24   +38.3701  -002.1369   +18  126  -07 20:13:29   +38.1197  -002.8179   +18  126  -07 20:13:34   +37.8759  -003.5128   +18  125  -07 20:13:39   +37.6389  -004.2227   +18  125  -06 20:13:44   +37.4091  -004.9487   +17  124  -06 20:13:49   +37.1866  -005.6922   +17  123  -06 20:13:54   +36.9718  -006.4548   +17  123  -05 20:13:59   +36.7652  -007.2383   +16  122  -05 20:14:05   +36.5672  -008.0448   +16  122  -05 20:14:10   +36.3785  -008.8767   +15  121  -04 20:14:15   +36.1998  -009.7372   +15  120  -04 20:14:20   +36.0319  -010.6298   +14  120  -03 20:14:25   +35.8760  -011.5589   +14  119  -03 20:14:30   +35.7334  -012.5301   +13  118  -02 20:14:35   +35.6061  -013.5505   +12  118  -01 20:14:40   +35.4963  -014.6295   +12  117  -01 20:14:45   +35.4074  -015.7800   +11  116  +00 20:14:50   +35.3440  -017.0202   +10  115  +01 20:14:55   +35.3133  -018.3780   +09  115  +02 20:15:00   +35.3272  -019.8991   +08  114  +03 20:15:05   +35.4079  -021.6707   +07  113  +04 20:15:10   +35.6099  -023.9042   +05  111  +06 20:15:15   +36.2164  -027.7024   +02  109  +09

Longitude measured positiv to the East.

------------------------------------------------------------------------------------------- Azm Sun | Lat----EDGE1----Lon | Lat----EDGE2----Lon deg deg | +DD.dddd +DDD.dddd | +DD.dddd +DDD.dddd --------------------------------------------- +67.1210 +022.3209 +72.5642 +012.3336 +65.5970 +022.9419 +69.6000 +016.2734 +64.3060 +023.2154 +67.3229 +018.6474 +63.1635 +023.2941 +65.7226 +019.6221 +62.1267 +023.2489 +64.3993 +020.1054 +61.1706 +023.1186 +63.2411 +020.3302 +60.2787 +022.9265 +62.1967 +020.3955 +59.4398 +022.6880 +61.2373 +020.3529 +58.6455 +022.4133 +60.3448 +020.2328 +57.8896 +022.1100 +59.5069 +020.0545 +57.1671 +021.7833 +58.7148 +019.8313 +56.4742 +021.4373 +57.9617 +019.5722 +55.8076 +021.0751 +57.2426 +019.2840 +55.1648 +020.6990 +56.5535 +018.9717 +54.5435 +020.3110 +55.8911 +018.6391 +53.9420 +019.9126 +55.2526 +018.2891 +53.3585 +019.5049 +54.6359 +017.9241 +52.7918 +019.0889 +54.0390 +017.5460 +52.2407 +018.6655 +53.4603 +017.1562 +51.7040 +018.2352 +52.8985 +016.7559 +51.1809 +017.7985 +52.3523 +016.3462 +50.6705 +017.3560 +51.8207 +015.9278 +50.1721 +016.9080 +51.3028 +015.5014 +49.6851 +016.4547 +50.7977 +015.0675 +49.2089 +015.9964 +50.3046 +014.6266 +48.7429 +015.5333 +49.8230 +014.1791 +48.2867 +015.0654 +49.3523 +013.7253 +47.8398 +014.5929 +48.8919 +013.2653 +47.4019 +014.1159 +48.4413 +012.7994 +46.9725 +013.6344 +48.0002 +012.3277 +46.5514 +013.1485 +47.5682 +011.8503 +46.1382 +012.6580 +47.1448 +011.3674 +45.7328 +012.1631 +46.7298 +010.8788 +45.3348 +011.6637 +46.3229 +010.3847 +44.9440 +011.1596 +45.9238 +009.8850 +44.5602 +010.6508 +45.5322 +009.3796 +44.1832 +010.1373 +45.1481 +008.8686 +43.8129 +009.6189 +44.7711 +008.3517 +43.4491 +009.0955 +44.4012 +007.8289 +43.0916 +008.5670 +44.0380 +007.3001 +42.7403 +008.0331 +43.6816 +006.7651 +42.3952 +007.4937 +43.3318 +006.2238 +42.0561 +006.9487 +42.9884 +005.6758 +41.7230 +006.3977 +42.6514 +005.1210 +41.3957 +005.8406 +42.3206 +004.5592 +41.0742 +005.2772 +41.9962 +003.9900 +40.7585 +004.7071 +41.6779 +003.4132 +40.4485 +004.1301 +41.3657 +002.8284 +40.1442 +003.5457 +41.0597 +002.2353 +39.8455 +002.9538 +40.7598 +001.6334 +39.5526 +002.3538 +40.4661 +001.0222 +39.2653 +001.7454 +40.1785 +000.4014 +38.9838 +001.1282 +39.8972 -000.2297 +38.7081 +000.5015 +39.6222 -000.8717 +38.4382 -000.1351 +39.3535 -001.5253 +38.1742 -000.7823 +39.0913 -002.1912 +37.9163 -001.4406 +38.8358 -002.8702 +37.6645 -002.1110 +38.5871 -003.5633 +37.4190 -002.7941 +38.3454 -004.2717 +37.1799 -003.4909 +38.1109 -004.9964 +36.9476 -004.2026 +37.8841 -005.7389 +36.7221 -004.9301 +37.6651 -006.5008 +36.5039 -005.6750 +37.4545 -007.2840 +36.2933 -006.4387 +37.2528 -008.0906 +36.0906 -007.2230 +37.0605 -008.9232 +35.8965 -008.0300 +36.8784 -009.7848 +35.7113 -008.8621 +36.7075 -010.6793 +35.5360 -009.7223 +36.5489 -011.6112 +35.3713 -010.6140 +36.4040 -012.5864 +35.2183 -011.5415 +36.2748 -013.6124 +35.0784 -012.5103 +36.1638 -014.6990 +34.9533 -013.5272 +36.0745 -015.8601 +34.8452 -014.6012 +36.0120 -017.1154 +34.7575 -015.7444 +35.9841 -018.4953 +34.6943 -016.9742 +36.0041 -020.0516 +34.6624 -018.3162 +36.0984 -021.8865 +34.6726 -019.8124 +36.3366 -024.2709 +34.7447 -021.5401 +36.0144 -024.5202 +34.9242 -023.6760 +35.6934 -024.7656 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.