Stellar Occultation by (551) Ortrud on 2025-07-20 (23:10:56 UT)
Event Details
Occultation UUID [and db] : 87365b70-85eb-11ef-78cd-456ab16f562f [asteroids]
Occultation Date + Time : 2025-07-20 at 23:10:56 UT +/- 0.01 min [1]
Object Designation : (551) Ortrud
Star Designation : GDR3 4076861778604888192
Star Coordinates (ICRF) : RA = 18 39 43.8354, DE = -23 41 00.450 [2]
Star Magnitudes : G = 14.63 mag, RP = 13.63 mag, BP = 15.66 mag
Object Magnitude : V = 14.65 mag
Estimated Magnitude Drop : 0.8 mag
Estimated Max. Duration : 6.4 sec
Object Mean Diameter : 78.5 km (src: astorb)
Orbital Class : MBA
Speed of the shadow : 12.3 km/s
Elongation to Moon & Sun : 148° (sunlit = 18%), Sun = 161°
Cross-track uncertainty : 0.4 mas = 0 km = 0.01 path-width (1-sig)
RUWE and duplicate source : 0.85 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#74
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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23:06:26 +53.1385 +044.3108 +02 225 -12 +49.9081 +039.9087 +55.0204 +046.4604
23:06:33 +49.7891 +037.9914 +07 220 -17 +48.0109 +036.1616 +52.3113 +041.0703
23:06:40 +48.1019 +034.6377 +10 217 -19 +46.6614 +033.3857 +49.8019 +036.2925
23:06:48 +46.8392 +032.0233 +12 215 -21 +45.5733 +031.0631 +48.2549 +033.2001
23:06:55 +45.8030 +029.7952 +13 213 -22 +44.6482 +029.0173 +47.0610 +030.7125
23:07:02 +44.9140 +027.8131 +15 212 -24 +43.8378 +027.1621 +46.0683 +028.5628
23:07:09 +44.1310 +026.0043 +16 210 -25 +43.1140 +025.4479 +45.2105 +026.6350
23:07:16 +43.4292 +024.3255 +17 209 -26 +42.4589 +023.8428 +44.4517 +024.8665
23:07:23 +42.7925 +022.7485 +18 208 -26 +41.8601 +022.3251 +43.7696 +023.2188
23:07:30 +42.2095 +021.2536 +19 206 -27 +41.3086 +020.8793 +43.1497 +021.6666
23:07:37 +41.6721 +019.8265 +20 205 -28 +40.7979 +019.4936 +42.5814 +020.1919
23:07:44 +41.1740 +018.4564 +21 204 -28 +40.3226 +018.1590 +42.0570 +018.7814
23:07:51 +40.7104 +017.1350 +22 203 -29 +39.8789 +016.8684 +41.5708 +017.4251
23:07:58 +40.2774 +015.8554 +23 202 -29 +39.4633 +015.6160 +41.1182 +016.1152
23:08:05 +39.8719 +014.6124 +24 201 -30 +39.0733 +014.3972 +40.6954 +014.8455
23:08:12 +39.4914 +013.4015 +24 200 -30 +38.7064 +013.2079 +40.2996 +013.6106
23:08:19 +39.1337 +012.2189 +25 199 -30 +38.3610 +012.0449 +39.9284 +012.4065
23:08:26 +38.7971 +011.0615 +25 197 -31 +38.0354 +010.9053 +39.5795 +011.2296
23:08:33 +38.4799 +009.9265 +26 196 -31 +37.7282 +009.7867 +39.2515 +010.0768
23:08:40 +38.1810 +008.8115 +27 195 -31 +37.4383 +008.6869 +38.9427 +008.9456
23:08:47 +37.8991 +007.7146 +27 194 -31 +37.1646 +007.6040 +38.6519 +007.8336
23:08:54 +37.6334 +006.6339 +27 193 -31 +36.9062 +006.5363 +38.3781 +006.7388
23:09:01 +37.3829 +005.5678 +28 192 -32 +36.6624 +005.4824 +38.1202 +005.6596
23:09:08 +37.1468 +004.5149 +28 191 -32 +36.4325 +004.4410 +37.8776 +004.5943
23:09:15 +36.9247 +003.4737 +29 190 -32 +36.2159 +003.4107 +37.6493 +003.5416
23:09:22 +36.7157 +002.4432 +29 189 -32 +36.0120 +002.3906 +37.4349 +002.5000
23:09:29 +36.5195 +001.4223 +29 188 -32 +35.8205 +001.3795 +37.2337 +001.4686
23:09:36 +36.3356 +000.4099 +30 187 -32 +35.6408 +000.3766 +37.0453 +000.4462
23:09:43 +36.1636 -000.5948 +30 186 -32 +35.4725 -000.6191 +36.8692 -000.5682
23:09:50 +36.0032 -001.5928 +30 185 -32 +35.3155 -001.6083 +36.7051 -001.5754
23:09:57 +35.8540 -002.5848 +30 184 -31 +35.1693 -002.5919 +36.5526 -002.5764
23:10:04 +35.7157 -003.5717 +31 183 -31 +35.0338 -003.5704 +36.4114 -003.5719
23:10:11 +35.5882 -004.5540 +31 182 -31 +34.9086 -004.5447 +36.2813 -004.5628
23:10:18 +35.4712 -005.5326 +31 181 -31 +34.7937 -005.5154 +36.1621 -005.5496
23:10:25 +35.3645 -006.5080 +31 180 -31 +34.6889 -006.4831 +36.0535 -006.5332
23:10:32 +35.2681 -007.4810 +31 179 -31 +34.5940 -007.4485 +35.9554 -007.5143
23:10:39 +35.1818 -008.4521 +31 178 -30 +34.5089 -008.4120 +35.8678 -008.4933
23:10:46 +35.1054 -009.4219 +31 177 -30 +34.4335 -009.3744 +35.7904 -009.4711
23:10:53 +35.0390 -010.3911 +31 176 -30 +34.3679 -010.3361 +35.7232 -010.4482
23:11:00 +34.9825 -011.3603 +31 175 -30 +34.3118 -011.2978 +35.6663 -011.4252
23:11:07 +34.9359 -012.3300 +31 174 -29 +34.2654 -012.2600 +35.6195 -012.4029
23:11:14 +34.8992 -013.3009 +31 173 -29 +34.2285 -013.2233 +35.5828 -013.3817
23:11:21 +34.8723 -014.2735 +31 172 -29 +34.2014 -014.1883 +35.5563 -014.3623
23:11:28 +34.8554 -015.2484 +31 171 -28 +34.1839 -015.1555 +35.5401 -015.3454
23:11:35 +34.8486 -016.2264 +31 170 -28 +34.1761 -016.1256 +35.5342 -016.3317
23:11:42 +34.8519 -017.2079 +31 169 -27 +34.1782 -017.0991 +35.5388 -017.3217
23:11:49 +34.8654 -018.1937 +30 168 -27 +34.1903 -018.0767 +35.5539 -018.3162
23:11:56 +34.8894 -019.1845 +30 167 -26 +34.2125 -019.0590 +35.5797 -019.3159
23:12:03 +34.9239 -020.1809 +30 166 -26 +34.2451 -020.0467 +35.6165 -020.3216
23:12:10 +34.9693 -021.1839 +30 165 -25 +34.2881 -021.0406 +35.6645 -021.3341
23:12:17 +35.0258 -022.1940 +30 164 -25 +34.3418 -022.0414 +35.7240 -022.3543
23:12:24 +35.0937 -023.2123 +29 163 -24 +34.4065 -023.0499 +35.7952 -023.3830
23:12:32 +35.1732 -024.2396 +29 162 -24 +34.4826 -024.0670 +35.8786 -024.4212
23:12:39 +35.2649 -025.2770 +29 161 -23 +34.5703 -025.0937 +35.9745 -025.4701
23:12:46 +35.3691 -026.3255 +28 160 -23 +34.6702 -026.1308 +36.0835 -026.5307
23:12:53 +35.4863 -027.3863 +28 159 -22 +34.7825 -027.1796 +36.2060 -027.6043
23:13:00 +35.6172 -028.4607 +27 158 -21 +34.9080 -028.2413 +36.3428 -028.6924
23:13:07 +35.7623 -029.5501 +27 157 -21 +35.0470 -029.3171 +36.4945 -029.7966
23:13:14 +35.9224 -030.6562 +26 156 -20 +35.2005 -030.4086 +36.6620 -030.9185
23:13:21 +36.0984 -031.7807 +26 155 -19 +35.3690 -031.5174 +36.8462 -032.0601
23:13:28 +36.2913 -032.9258 +25 154 -18 +35.5536 -032.6453 +37.0482 -033.2238
23:13:35 +36.5022 -034.0937 +25 153 -18 +35.7553 -033.7946 +37.2694 -034.4121
23:13:42 +36.7324 -035.2872 +24 152 -17 +35.9752 -034.9676 +37.5112 -035.6281
23:13:49 +36.9837 -036.5093 +23 151 -16 +36.2147 -036.1672 +37.7754 -036.8752
23:13:56 +37.2578 -037.7639 +23 150 -15 +36.4756 -037.3966 +38.0643 -038.1578
23:14:03 +37.5570 -039.0553 +22 149 -14 +36.7599 -038.6597 +38.3805 -039.4809
23:14:10 +37.8841 -040.3889 +21 148 -13 +37.0698 -039.9613 +38.7272 -040.8508
23:14:17 +38.2425 -041.7714 +20 147 -12 +37.4084 -041.3069 +39.1085 -042.2754
23:14:24 +38.6366 -043.2110 +19 146 -11 +37.7793 -042.7036 +39.5296 -043.7646
23:14:31 +39.0719 -044.7185 +18 144 -10 +38.1870 -044.1603 +39.9974 -045.3316
23:14:38 +39.5558 -046.3080 +17 143 -08 +38.6375 -045.6886 +40.5213 -046.9943
23:14:45 +40.0984 -047.9991 +16 142 -07 +39.1388 -047.3037 +41.1145 -048.7784
23:14:52 +40.7142 -049.8199 +15 141 -06 +39.7020 -049.0272 +41.7972 -050.7224
23:14:59 +41.4256 -051.8135 +13 139 -04 +40.3430 -050.8902 +42.6020 -052.8895
23:15:06 +42.2699 -054.0524 +11 138 -02 +41.0871 -052.9416 +43.5901 -055.3979
23:15:13 +43.3195 -056.6779 +09 136 +00 +41.9775 -055.2659 +44.9044 -058.5260
23:15:20 +44.7586 -060.0506 +07 133 +03 +43.1020 -058.0354 +47.1744 -063.5054
23:15:27 +47.9471 -066.8531 +01 128 +08 +44.6992 -061.7182 +47.1056 -064.1769
Longitude measured positiv to the East. Azimuth (Azm) measured from North to East.