Cora»OccDetail

Stellar Occultation by (30690) 4633 T-2 on 2025-09-28 (23:35:47 UT)

Event Details
Occultation UUID [and db] : 7b4f9760-ddb8-11f0-547e-c367f5f716d4 [observed] Occultation Date + Time : 2025-09-28 at 23:35:47 UT +/- 0.02 min [1] Object Designation : (30690) 4633 T-2 Star Designation : GDR3 2536022989645572608 Star Coordinates (ICRF) : RA = 00 55 01.4971, DE = -00 43 32.602 [2] Star Magnitudes : G = 12.89 mag, RP = 12.36 mag, BP = 13.26 mag Object Magnitude : V = 18.98 mag Estimated Magnitude Drop : 6.1 mag Estimated Max. Duration : 0.3 sec Speed of the shadow : 12.0 km/s Object Mean Diameter : 3.3 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.5417 arcs/min @ PA = 245 deg Horizontal Parallax : 4.8090 arcs Dynamical Class : MBA Elongation to Moon & Sun : 107° (sunlit = 40%), Sun = 171° Cross-track uncertainty : 4.3 mas = 5 km = 1.73 path-width (1-sig) RUWE and duplicate source : 0.87 mas, dup.src = 1 (0:false, 1:true) Ephemeris Reference : JPL#49 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and db] : 7b4f9760-ddb8-11f0-547e-c367f5f716d4 [observed]

 Occultation Date + Time   : 2025-09-28 at 23:35:47 UT +/- 0.02 min  [1]
 Object Designation        : (30690) 4633 T-2
 Star Designation          : GDR3 2536022989645572608
 Star Coordinates (ICRF)   : RA = 00 55 01.4971, DE = -00 43 32.602  [2]
 Star Magnitudes           : G = 12.89 mag, RP = 12.36 mag, BP = 13.26 mag
 Object Magnitude          : V = 18.98 mag
 Estimated Magnitude Drop  : 6.1 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 12.0 km/s
 Object Mean Diameter      : 3.3 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.5417 arcs/min @ PA = 245 deg
 Horizontal Parallax       : 4.8090 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 107° (sunlit = 40%), Sun = 171°
 Cross-track uncertainty   : 4.3 mas = 5 km = 1.73 path-width (1-sig)
 RUWE and duplicate source : 0.87 mas, dup.src = 1  (0:false, 1:true)

 Ephemeris Reference       : JPL#49
 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

(If error 404: link not valid which means no data available)

Interactive map

Download KMZ file

Aladin Sky Atlas

Aladin Lite direct link (has Gaia overlay)

Occultation Ground Track
Time[UT] \| Lat----CENTR----Lon \| Alt hh:mm:ss \| +DD.dddd +DDD.dddd \| deg ---------------------------------------------- 23:29:31 +69.7023 +088.6071 +04 256 -05 23:29:38 +68.5850 +075.4972 +09 244 -09 23:29:46 +67.5786 +067.7388 +12 236 -12 23:29:53 +66.6333 +061.9056 +15 231 -15 23:30:01 +65.7336 +057.1548 +17 226 -17 23:30:08 +64.8713 +053.1160 +18 222 -19 23:30:16 +64.0409 +049.5869 +20 219 -20 23:30:23 +63.2382 +046.4427 +21 216 -22 23:30:31 +62.4602 +043.6004 +23 213 -23 23:30:38 +61.7043 +041.0014 +24 211 -25 23:30:46 +60.9685 +038.6028 +25 208 -26 23:30:53 +60.2510 +036.3720 +26 206 -27 23:31:01 +59.5503 +034.2839 +27 204 -29 23:31:08 +58.8651 +032.3182 +28 202 -30 23:31:16 +58.1944 +030.4590 +29 200 -31 23:31:23 +57.5370 +028.6929 +30 198 -32 23:31:31 +56.8921 +027.0090 +31 197 -33 23:31:38 +56.2590 +025.3979 +32 195 -34 23:31:46 +55.6368 +023.8519 +33 193 -35 23:31:53 +55.0251 +022.3643 +34 192 -35 23:32:01 +54.4231 +020.9294 +34 190 -36 23:32:08 +53.8304 +019.5420 +35 188 -37 23:32:16 +53.2464 +018.1978 +36 187 -38 23:32:23 +52.6708 +016.8929 +36 185 -39 23:32:31 +52.1031 +015.6240 +37 184 -39 23:32:38 +51.5429 +014.3880 +38 182 -40 23:32:46 +50.9900 +013.1822 +38 181 -41 23:32:53 +50.4439 +012.0041 +39 179 -42 23:33:01 +49.9044 +010.8515 +39 178 -42 23:33:08 +49.3712 +009.7225 +40 176 -43 23:33:16 +48.8440 +008.6152 +40 175 -43 23:33:23 +48.3226 +007.5281 +41 174 -44 23:33:31 +47.8068 +006.4595 +41 172 -45 23:33:38 +47.2963 +005.4081 +42 171 -45 23:33:46 +46.7909 +004.3727 +42 169 -46 23:33:53 +46.2906 +003.3520 +42 168 -46 23:34:01 +45.7950 +002.3449 +43 166 -47 23:34:08 +45.3040 +001.3504 +43 165 -47 23:34:16 +44.8174 +000.3676 +43 164 -47 23:34:23 +44.3351 -000.6045 +44 162 -48 23:34:31 +43.8571 -001.5666 +44 161 -48 23:34:38 +43.3830 -002.5196 +44 159 -49 23:34:46 +42.9128 -003.4643 +44 158 -49 23:34:53 +42.4464 -004.4012 +44 157 -49 23:35:01 +41.9836 -005.3312 +45 155 -50 23:35:08 +41.5244 -006.2548 +45 154 -50 23:35:16 +41.0686 -007.1727 +45 153 -50 23:35:23 +40.6161 -008.0855 +45 151 -50 23:35:31 +40.1669 -008.9937 +45 150 -51 23:35:38 +39.7208 -009.8979 +45 148 -51 23:35:46 +39.2778 -010.7986 +45 147 -51 23:35:53 +38.8378 -011.6964 +45 146 -51 23:36:01 +38.4006 -012.5918 +45 144 -51 23:36:08 +37.9663 -013.4853 +45 143 -51 23:36:16 +37.5347 -014.3773 +45 142 -51 23:36:23 +37.1058 -015.2684 +45 140 -51 23:36:31 +36.6795 -016.1590 +45 139 -51 23:36:38 +36.2558 -017.0497 +44 138 -51 23:36:46 +35.8345 -017.9409 +44 137 -51 23:36:53 +35.4157 -018.8331 +44 135 -51 23:37:01 +34.9992 -019.7269 +44 134 -51 23:37:08 +34.5851 -020.6226 +44 133 -51 23:37:16 +34.1732 -021.5209 +43 132 -51 23:37:23 +33.7635 -022.4222 +43 130 -51 23:37:31 +33.3560 -023.3271 +43 129 -50 23:37:38 +32.9506 -024.2361 +42 128 -50 23:37:46 +32.5472 -025.1498 +42 127 -50 23:37:53 +32.1459 -026.0688 +42 126 -50 23:38:01 +31.7466 -026.9937 +41 124 -49 23:38:08 +31.3493 -027.9252 +41 123 -49 23:38:16 +30.9538 -028.8639 +41 122 -49 23:38:23 +30.5603 -029.8105 +40 121 -48 23:38:31 +30.1686 -030.7659 +40 120 -48 23:38:38 +29.7787 -031.7309 +39 119 -47 23:38:46 +29.3906 -032.7062 +39 118 -47 23:38:53 +29.0043 -033.6930 +38 117 -46 23:39:01 +28.6198 -034.6922 +37 116 -46 23:39:08 +28.2369 -035.7049 +37 115 -45 23:39:16 +27.8558 -036.7323 +36 114 -45 23:39:23 +27.4763 -037.7758 +35 113 -44 23:39:31 +27.0986 -038.8369 +35 112 -43 23:39:38 +26.7225 -039.9173 +34 111 -43 23:39:46 +26.3480 -041.0187 +33 110 -42 23:39:53 +25.9752 -042.1434 +32 109 -41 23:40:01 +25.6041 -043.2936 +32 108 -40 23:40:08 +25.2346 -044.4722 +31 107 -39 23:40:16 +24.8668 -045.6824 +30 106 -38 23:40:23 +24.5007 -046.9277 +29 105 -38 23:40:31 +24.1363 -048.2128 +28 105 -37 23:40:38 +23.7737 -049.5428 +27 104 -35 23:40:46 +23.4130 -050.9242 +26 103 -34 23:40:53 +23.0541 -052.3651 +24 102 -33 23:41:01 +22.6973 -053.8756 +23 101 -32 23:41:08 +22.3426 -055.4690 +22 100 -31 23:41:16 +21.9903 -057.1631 +20 099 -29 23:41:23 +21.6407 -058.9829 +19 099 -28 23:41:31 +21.2943 -060.9654 +17 098 -26 23:41:38 +20.9517 -063.1695 +15 097 -24 23:41:46 +20.6143 -065.7003 +13 096 -22 23:41:53 +20.2851 -068.7854 +10 095 -19 23:42:01 +19.9736 -073.1853 +06 093 -15 Longitude measured positiv to the East.

Occultation Ground Track

 Time[UT] | Lat----CENTR----Lon | Alt hh:mm:ss | +DD.dddd  +DDD.dddd | deg ---------------------------------------------- 23:29:31   +69.7023  +088.6071   +04  256  -05 23:29:38   +68.5850  +075.4972   +09  244  -09 23:29:46   +67.5786  +067.7388   +12  236  -12 23:29:53   +66.6333  +061.9056   +15  231  -15 23:30:01   +65.7336  +057.1548   +17  226  -17 23:30:08   +64.8713  +053.1160   +18  222  -19 23:30:16   +64.0409  +049.5869   +20  219  -20 23:30:23   +63.2382  +046.4427   +21  216  -22 23:30:31   +62.4602  +043.6004   +23  213  -23 23:30:38   +61.7043  +041.0014   +24  211  -25 23:30:46   +60.9685  +038.6028   +25  208  -26 23:30:53   +60.2510  +036.3720   +26  206  -27 23:31:01   +59.5503  +034.2839   +27  204  -29 23:31:08   +58.8651  +032.3182   +28  202  -30 23:31:16   +58.1944  +030.4590   +29  200  -31 23:31:23   +57.5370  +028.6929   +30  198  -32 23:31:31   +56.8921  +027.0090   +31  197  -33 23:31:38   +56.2590  +025.3979   +32  195  -34 23:31:46   +55.6368  +023.8519   +33  193  -35 23:31:53   +55.0251  +022.3643   +34  192  -35 23:32:01   +54.4231  +020.9294   +34  190  -36 23:32:08   +53.8304  +019.5420   +35  188  -37 23:32:16   +53.2464  +018.1978   +36  187  -38 23:32:23   +52.6708  +016.8929   +36  185  -39 23:32:31   +52.1031  +015.6240   +37  184  -39 23:32:38   +51.5429  +014.3880   +38  182  -40 23:32:46   +50.9900  +013.1822   +38  181  -41 23:32:53   +50.4439  +012.0041   +39  179  -42 23:33:01   +49.9044  +010.8515   +39  178  -42 23:33:08   +49.3712  +009.7225   +40  176  -43 23:33:16   +48.8440  +008.6152   +40  175  -43 23:33:23   +48.3226  +007.5281   +41  174  -44 23:33:31   +47.8068  +006.4595   +41  172  -45 23:33:38   +47.2963  +005.4081   +42  171  -45 23:33:46   +46.7909  +004.3727   +42  169  -46 23:33:53   +46.2906  +003.3520   +42  168  -46 23:34:01   +45.7950  +002.3449   +43  166  -47 23:34:08   +45.3040  +001.3504   +43  165  -47 23:34:16   +44.8174  +000.3676   +43  164  -47 23:34:23   +44.3351  -000.6045   +44  162  -48 23:34:31   +43.8571  -001.5666   +44  161  -48 23:34:38   +43.3830  -002.5196   +44  159  -49 23:34:46   +42.9128  -003.4643   +44  158  -49 23:34:53   +42.4464  -004.4012   +44  157  -49 23:35:01   +41.9836  -005.3312   +45  155  -50 23:35:08   +41.5244  -006.2548   +45  154  -50 23:35:16   +41.0686  -007.1727   +45  153  -50 23:35:23   +40.6161  -008.0855   +45  151  -50 23:35:31   +40.1669  -008.9937   +45  150  -51 23:35:38   +39.7208  -009.8979   +45  148  -51 23:35:46   +39.2778  -010.7986   +45  147  -51 23:35:53   +38.8378  -011.6964   +45  146  -51 23:36:01   +38.4006  -012.5918   +45  144  -51 23:36:08   +37.9663  -013.4853   +45  143  -51 23:36:16   +37.5347  -014.3773   +45  142  -51 23:36:23   +37.1058  -015.2684   +45  140  -51 23:36:31   +36.6795  -016.1590   +45  139  -51 23:36:38   +36.2558  -017.0497   +44  138  -51 23:36:46   +35.8345  -017.9409   +44  137  -51 23:36:53   +35.4157  -018.8331   +44  135  -51 23:37:01   +34.9992  -019.7269   +44  134  -51 23:37:08   +34.5851  -020.6226   +44  133  -51 23:37:16   +34.1732  -021.5209   +43  132  -51 23:37:23   +33.7635  -022.4222   +43  130  -51 23:37:31   +33.3560  -023.3271   +43  129  -50 23:37:38   +32.9506  -024.2361   +42  128  -50 23:37:46   +32.5472  -025.1498   +42  127  -50 23:37:53   +32.1459  -026.0688   +42  126  -50 23:38:01   +31.7466  -026.9937   +41  124  -49 23:38:08   +31.3493  -027.9252   +41  123  -49 23:38:16   +30.9538  -028.8639   +41  122  -49 23:38:23   +30.5603  -029.8105   +40  121  -48 23:38:31   +30.1686  -030.7659   +40  120  -48 23:38:38   +29.7787  -031.7309   +39  119  -47 23:38:46   +29.3906  -032.7062   +39  118  -47 23:38:53   +29.0043  -033.6930   +38  117  -46 23:39:01   +28.6198  -034.6922   +37  116  -46 23:39:08   +28.2369  -035.7049   +37  115  -45 23:39:16   +27.8558  -036.7323   +36  114  -45 23:39:23   +27.4763  -037.7758   +35  113  -44 23:39:31   +27.0986  -038.8369   +35  112  -43 23:39:38   +26.7225  -039.9173   +34  111  -43 23:39:46   +26.3480  -041.0187   +33  110  -42 23:39:53   +25.9752  -042.1434   +32  109  -41 23:40:01   +25.6041  -043.2936   +32  108  -40 23:40:08   +25.2346  -044.4722   +31  107  -39 23:40:16   +24.8668  -045.6824   +30  106  -38 23:40:23   +24.5007  -046.9277   +29  105  -38 23:40:31   +24.1363  -048.2128   +28  105  -37 23:40:38   +23.7737  -049.5428   +27  104  -35 23:40:46   +23.4130  -050.9242   +26  103  -34 23:40:53   +23.0541  -052.3651   +24  102  -33 23:41:01   +22.6973  -053.8756   +23  101  -32 23:41:08   +22.3426  -055.4690   +22  100  -31 23:41:16   +21.9903  -057.1631   +20  099  -29 23:41:23   +21.6407  -058.9829   +19  099  -28 23:41:31   +21.2943  -060.9654   +17  098  -26 23:41:38   +20.9517  -063.1695   +15  097  -24 23:41:46   +20.6143  -065.7003   +13  096  -22 23:41:53   +20.2851  -068.7854   +10  095  -19 23:42:01   +19.9736  -073.1853   +06  093  -15

Longitude measured positiv to the East.

------------------------------------------------------------------------------------------- Azm Sun | Lat----EDGE1----Lon | Lat----EDGE2----Lon deg deg | +DD.dddd +DDD.dddd | +DD.dddd +DDD.dddd --------------------------------------------- +69.6593 +088.2429 +69.7456 +088.9845 +68.5465 +075.3489 +68.6236 +075.6471 +67.5422 +067.6442 +67.6151 +067.8341 +66.5985 +061.8385 +66.6681 +061.9731 +65.7002 +057.1049 +65.7671 +057.2050 +64.8391 +053.0780 +64.9036 +053.1542 +64.0097 +049.5576 +64.0721 +049.6163 +63.2079 +046.4201 +63.2685 +046.4655 +62.4307 +043.5830 +62.4897 +043.6179 +61.6756 +040.9883 +61.7330 +041.0147 +60.9405 +038.5931 +60.9965 +038.6126 +60.2236 +036.3652 +60.2784 +036.3789 +59.5235 +034.2795 +59.5771 +034.2883 +58.8389 +032.3159 +58.8914 +032.3206 +58.1686 +030.4584 +58.2201 +030.4596 +57.5117 +028.6939 +57.5623 +028.6920 +56.8673 +027.0113 +56.9170 +027.0067 +56.2346 +025.4014 +56.2834 +025.3944 +55.6128 +023.8564 +55.6609 +023.8474 +55.0014 +022.3698 +55.0487 +022.3589 +54.3998 +020.9356 +54.4464 +020.9231 +53.8074 +019.5489 +53.8533 +019.5350 +53.2238 +018.2054 +53.2691 +018.1901 +52.6484 +016.9011 +52.6931 +016.8847 +52.0810 +015.6328 +52.1252 +015.6153 +51.5211 +014.3972 +51.5647 +014.3787 +50.9684 +013.1918 +51.0115 +013.1725 +50.4226 +012.0141 +50.4652 +011.9940 +49.8833 +010.8620 +49.9254 +010.8410 +49.3504 +009.7333 +49.3920 +009.7117 +48.8234 +008.6264 +48.8646 +008.6041 +48.3022 +007.5395 +48.3430 +007.5167 +47.7866 +006.4712 +47.8270 +006.4478 +47.2763 +005.4201 +47.3163 +005.3962 +46.7711 +004.3849 +46.8108 +004.3605 +46.2709 +003.3644 +46.3102 +003.3395 +45.7755 +002.3575 +45.8144 +002.3322 +45.2847 +001.3632 +45.3232 +001.3376 +44.7983 +000.3806 +44.8365 +000.3546 +44.3162 -000.5913 +44.3541 -000.6177 +43.8382 -001.5533 +43.8759 -001.5800 +43.3643 -002.5061 +43.4016 -002.5331 +42.8943 -003.4506 +42.9313 -003.4779 +42.4280 -004.3874 +42.4648 -004.4150 +41.9653 -005.3173 +42.0018 -005.3452 +41.5062 -006.2407 +41.5425 -006.2689 +41.0506 -007.1585 +41.0866 -007.1869 +40.5982 -008.0712 +40.6340 -008.0998 +40.1491 -008.9792 +40.1847 -009.0082 +39.7032 -009.8833 +39.7385 -009.9125 +39.2603 -010.7839 +39.2954 -010.8134 +38.8203 -011.6816 +38.8552 -011.7113 +38.3833 -012.5769 +38.4180 -012.6068 +37.9491 -013.4702 +37.9835 -013.5004 +37.5176 -014.3621 +37.5519 -014.3925 +37.0888 -015.2531 +37.1229 -015.2837 +36.6626 -016.1436 +36.6965 -016.1745 +36.2389 -017.0341 +36.2727 -017.0653 +35.8178 -017.9252 +35.8513 -017.9566 +35.3990 -018.8173 +35.4324 -018.8490 +34.9826 -019.7109 +35.0158 -019.7428 +34.5685 -020.6065 +34.6016 -020.6387 +34.1567 -021.5047 +34.1896 -021.5371 +33.7471 -022.4058 +33.7799 -022.4386 +33.3397 -023.3106 +33.3723 -023.3436 +32.9343 -024.2194 +32.9668 -024.2528 +32.5311 -025.1330 +32.5634 -025.1666 +32.1298 -026.0518 +32.1620 -026.0858 +31.7306 -026.9765 +31.7627 -027.0109 +31.3333 -027.9078 +31.3652 -027.9425 +30.9379 -028.8463 +30.9697 -028.8814 +30.5444 -029.7928 +30.5761 -029.8282 +30.1528 -030.7480 +30.1844 -030.7838 +29.7630 -031.7127 +29.7944 -031.7490 +29.3750 -032.6879 +29.4063 -032.7246 +28.9887 -033.6744 +29.0199 -033.7116 +28.6042 -034.6733 +28.6353 -034.7110 +28.2214 -035.6857 +28.2524 -035.7240 +27.8403 -036.7128 +27.8713 -036.7517 +27.4609 -037.7561 +27.4918 -037.7956 +27.0832 -038.8168 +27.1139 -038.8570 +26.7071 -039.8968 +26.7378 -039.9378 +26.3327 -040.9979 +26.3633 -041.0396 +25.9600 -042.1221 +25.9905 -042.1647 +25.5889 -043.2718 +25.6193 -043.3155 +25.2194 -044.4499 +25.2498 -044.4946 +24.8517 -045.6594 +24.8819 -045.7053 +24.4856 -046.9041 +24.5158 -046.9514 +24.1213 -048.1884 +24.1514 -048.2371 +23.7587 -049.5176 +23.7888 -049.5680 +23.3980 -050.8980 +23.4280 -050.9504 +23.0391 -052.3377 +23.0691 -052.3924 +22.6823 -053.8469 +22.7122 -053.9043 +22.3277 -055.4387 +22.3576 -055.4993 +21.9754 -057.1309 +22.0053 -057.1954 +21.6258 -058.9482 +21.6557 -059.0178 +21.2793 -060.9273 +21.3092 -061.0037 +20.9367 -063.1267 +20.9666 -063.2125 +20.5993 -065.6501 +20.6293 -065.7507 +20.2699 -068.7215 +20.3002 -068.8497 +19.9579 -073.0786 +19.9893 -073.2939 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.