Stellar Occultation by (54) Alexandra on 2021-12-18 (03:36:17 UT)
Event Details
Occultation UUID [and db] : 0b39cf47-b266-4c1e-a5a7-85df712eed8a [observed]
Occultation Date + Time : 2021-12-18 at 03:36:17 UT +/- 0.01 min [1]
Object Designation : (54) Alexandra
Star Designation : GDR3 3796667427997019648
Star Coordinates (ICRF) : RA = 11 26 26.6529, DE = -01 24 06.983 [2]
Star Magnitudes : G = 14.6 mag, RP = 14.06 mag, BP = 14.97 mag
Object Magnitude : V = 13.7 mag
Estimated Magnitude Drop : 0.4 mag
Estimated Max. Duration : 11.7 sec
Object Mean Diameter : 166 km (src: astorb)
Orbital Class : MBA
Speed of the shadow : 14.2 km/s
Elongation to Moon & Sun : 98° (sunlit = 99%), Sun = 94°
Cross-track uncertainty : 2.7 mas = 5 km = 0.03 path-width (1-sig)
RUWE and duplicate source : 1.05 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#197
Object is a <Gaia mass determination> target !
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
(If error 404: link not valid which means no data available)
Aladin Lite direct link (has Gaia overlay)
Occultation Ground Track
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Time[UT] | Lat----CENTR----Lon | Alt Azm Sun | Lat----EDGE1----Lon | Lat----EDGE2----Lon
hh:mm:ss | +DD.dddd +DDD.dddd | deg deg deg | +DD.dddd +DDD.dddd | +DD.dddd +DDD.dddd
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03:29:20 +60.8278 -034.2786 +10 111 -50 +62.0176 -036.7787 +59.6926 -032.4123
03:29:33 +58.3019 -022.1024 +17 122 -49 +59.3721 -022.8781 +57.2662 -021.4853
03:29:46 +56.0320 -014.4981 +21 129 -47 +57.0284 -014.7368 +55.0624 -014.3309
03:29:58 +53.9242 -008.8353 +25 134 -45 +54.8645 -008.8018 +53.0058 -008.9058
03:30:11 +51.9383 -004.2917 +28 138 -43 +52.8333 -004.0960 +51.0617 -004.5073
03:30:24 +50.0502 -000.4831 +32 141 -41 +50.9074 -000.1821 +49.2087 -000.7944
03:30:37 +48.2431 +002.8050 +34 144 -39 +49.0681 +003.1779 +47.4317 +002.4274
03:30:50 +46.5050 +005.7056 +37 147 -38 +47.3022 +006.1296 +45.7197 +005.2807
03:31:03 +44.8264 +008.3074 +39 149 -36 +45.5993 +008.7686 +44.0641 +007.8477
03:31:16 +43.1999 +010.6724 +42 151 -34 +43.9513 +011.1611 +42.4580 +010.1867
03:31:28 +41.6194 +012.8457 +44 153 -32 +42.3517 +013.3551 +40.8957 +012.3404
03:31:41 +40.0800 +014.8614 +46 155 -31 +40.7952 +015.3865 +39.3726 +014.3410
03:31:54 +38.5774 +016.7455 +48 158 -29 +39.2772 +017.2826 +37.8848 +016.2136
03:32:07 +37.1081 +018.5188 +50 160 -27 +37.7938 +019.0651 +36.4288 +017.9780
03:32:20 +35.6688 +020.1977 +51 162 -26 +36.3418 +020.7511 +35.0017 +019.6500
03:32:33 +34.2570 +021.7958 +53 164 -24 +34.9184 +022.3546 +33.6010 +021.2427
03:32:45 +32.8702 +023.3242 +55 166 -23 +33.5210 +023.8871 +32.2244 +022.7670
03:32:58 +31.5064 +024.7922 +57 168 -21 +32.1475 +025.3583 +30.8699 +024.2319
03:33:11 +30.1637 +026.2077 +58 170 -19 +30.7959 +026.7762 +29.5358 +025.6450
03:33:24 +28.8404 +027.5776 +60 173 -18 +29.4644 +028.1479 +28.2204 +027.0132
03:33:37 +27.5350 +028.9078 +61 175 -16 +28.1514 +029.4792 +26.9223 +028.3420
03:33:50 +26.2462 +030.2032 +62 178 -15 +26.8557 +030.7756 +25.6402 +029.6365
03:34:02 +24.9727 +031.4686 +64 181 -13 +25.5757 +032.0415 +24.3729 +030.9012
03:34:15 +23.7134 +032.7078 +65 184 -12 +24.3105 +033.2811 +23.1193 +032.1401
03:34:28 +22.4673 +033.9246 +66 187 -10 +23.0589 +034.4981 +21.8785 +033.3566
03:34:41 +21.2333 +035.1223 +67 191 -09 +21.8199 +035.6958 +20.6494 +034.5541
03:34:54 +20.0107 +036.3037 +68 195 -07 +20.5926 +036.8772 +19.4312 +035.7355
03:35:07 +18.7985 +037.4717 +69 199 -06 +19.3761 +038.0451 +18.2231 +036.9036
03:35:20 +17.5960 +038.6289 +69 203 -04 +18.1697 +039.2022 +17.0244 +038.0608
03:35:32 +16.4025 +039.7777 +70 207 -02 +16.9726 +040.3508 +15.8343 +039.2097
03:35:45 +15.2172 +040.9203 +71 212 -01 +15.7840 +041.4934 +14.6522 +040.3524
03:35:58 +14.0397 +042.0591 +71 217 +01 +14.6035 +042.6321 +13.4775 +041.4912
03:36:11 +12.8692 +043.1961 +71 222 +02 +13.4303 +043.7690 +12.3096 +042.6282
03:36:24 +11.7052 +044.3333 +71 227 +04 +12.2638 +044.9063 +11.1479 +043.7654
03:36:37 +10.5471 +045.4729 +71 232 +05 +11.1035 +046.0460 +09.9918 +044.9049
03:36:49 +09.3944 +046.6169 +71 237 +07 +09.9490 +047.1901 +08.8410 +046.0487
03:37:02 +08.2467 +047.7672 +70 242 +08 +08.7995 +048.3407 +07.6948 +047.1988
03:37:15 +07.1034 +048.9260 +70 246 +10 +07.6548 +049.4999 +06.5529 +048.3572
03:37:28 +05.9641 +050.0954 +69 250 +12 +06.5143 +050.6698 +05.4147 +049.5262
03:37:41 +04.8283 +051.2776 +68 254 +13 +05.3775 +051.8526 +04.2799 +050.7077
03:37:54 +03.6957 +052.4748 +67 258 +15 +04.2441 +053.0506 +03.1479 +051.9042
03:38:07 +02.5658 +053.6895 +66 261 +16 +03.1137 +054.2662 +02.0185 +053.1181
03:38:19 +01.4382 +054.9242 +65 264 +18 +01.9857 +055.5020 +00.8912 +054.3517
03:38:32 +00.3126 +056.1815 +64 266 +20 +00.8600 +056.7606 -00.2344 +055.6078
03:38:45 -00.8115 +057.4645 +62 269 +21 -00.2640 +058.0451 -01.3587 +056.8894
03:38:58 -01.9344 +058.7762 +61 271 +23 -01.3867 +059.3586 -02.4820 +058.1996
03:39:11 -03.0564 +060.1203 +60 272 +25 -02.5082 +060.7047 -03.6046 +059.5418
03:39:24 -04.1780 +061.5006 +58 274 +27 -03.6291 +062.0872 -04.7270 +060.9199
03:39:36 -05.2994 +062.9213 +57 276 +28 -04.7495 +063.5106 -05.8494 +062.3382
03:39:49 -06.4210 +064.3873 +55 277 +30 -05.8699 +064.9798 -06.9723 +063.8015
03:40:02 -07.5430 +065.9043 +53 278 +32 -06.9906 +066.5003 -08.0958 +065.3152
03:40:15 -08.6658 +067.4784 +52 279 +34 -08.1118 +068.0785 -09.2203 +066.8856
03:40:28 -09.7897 +069.1172 +50 280 +36 -09.2338 +069.7220 -10.3461 +068.5200
03:40:41 -10.9148 +070.8292 +48 280 +38 -10.3568 +071.4397 -11.4734 +070.2269
03:40:53 -12.0414 +072.6248 +46 281 +40 -11.4810 +073.2419 -12.6025 +072.0165
03:41:06 -13.1697 +074.5165 +44 281 +42 -12.6066 +075.1416 -13.7335 +073.9010
03:41:19 -14.2997 +076.5197 +42 281 +45 -13.7337 +077.1546 -14.8667 +075.8955
03:41:32 -15.4316 +078.6540 +39 281 +47 -14.8623 +079.3009 -16.0019 +078.0190
03:41:45 -16.5651 +080.9445 +37 281 +49 -15.9922 +081.6065 -17.1391 +080.2958
03:41:58 -17.7001 +083.4248 +34 281 +52 -17.1231 +084.1065 -18.2782 +082.7585
03:42:11 -18.8357 +086.1417 +31 280 +55 -18.2543 +086.8499 -19.4185 +085.4517
03:42:23 -19.9710 +089.1642 +28 280 +58 -19.3845 +089.9097 -20.5589 +088.4409
03:42:36 -21.1038 +092.6015 +25 279 +61 -20.5113 +093.4038 -21.6976 +091.8282
03:42:49 -22.2297 +096.6492 +21 277 +65 -21.6299 +097.5477 -22.8306 +095.7925
03:43:02 -23.3386 +101.7335 +16 276 +70 -22.7286 +102.8343 -23.9492 +100.7087
03:43:15 -24.3941 +109.3467 +09 273 +77 -23.7576 +111.2834 -25.0247 +107.7489
Longitude measured positiv to the East. Azimuth (Azm) measured from North to East.