Cora»OccDetail

Stellar Occultation by (175613) Shikoku-karst on 2026-10-21 (21:20:04 UT)

Event Details
Occultation UUID [and db] : 798e5df0-d9b4-11f1-43f3-c1a03bd9a571 [observed] Occultation Date + Time : 2026-10-21 at 21:20:04 UT +/- 0.09 min [1] Object Designation : (175613) Shikoku-karst Star Designation : GDR3 6901330644383566976 Star Coordinates (ICRF) : RA = 20 37 16.7977, DE = -11 04 15.484 [2] Star Magnitudes : G = 8.66 mag, RP = 7.81 mag, BP = 9.42 mag Object Magnitude : V = 21.05 mag Estimated Magnitude Drop : 12.4 mag Estimated Max. Duration : 0.3 sec Speed of the shadow : 10.9 km/s Object Mean Diameter : 2.7 km (src: astorb) => apparent = 1 mas Apparent Motion : 0.3333 arcs/min @ PA = 81 deg Horizontal Parallax : 3.2710 arcs Dynamical Class : MBA Elongation to Moon & Sun : 27° (sunlit = 80%), Sun = 100° Cross-track uncertainty : 20.7 mas = 40 km = 14.95 path-width (1-sig) RUWE and duplicate source : 1.08 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL25 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and db] : 798e5df0-d9b4-11f1-43f3-c1a03bd9a571 [observed]

 Occultation Date + Time   : 2026-10-21 at 21:20:04 UT +/- 0.09 min  [1]
 Object Designation        : (175613) Shikoku-karst
 Star Designation          : GDR3 6901330644383566976
 Star Coordinates (ICRF)   : RA = 20 37 16.7977, DE = -11 04 15.484  [2]
 Star Magnitudes           : G = 8.66 mag, RP = 7.81 mag, BP = 9.42 mag
 Object Magnitude          : V = 21.05 mag
 Estimated Magnitude Drop  : 12.4 mag
 Estimated Max. Duration   : 0.3 sec
 Speed of the shadow       : 10.9 km/s
 Object Mean Diameter      : 2.7 km  (src: astorb) => apparent = 1 mas
 Apparent Motion           : 0.3333 arcs/min @ PA = 81 deg
 Horizontal Parallax       : 3.2710 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 27° (sunlit = 80%), Sun = 100°
 Cross-track uncertainty   : 20.7 mas = 40 km = 14.95 path-width (1-sig)
 RUWE and duplicate source : 1.08 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL25
 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 ---------------------------------------------- 21:14:06 +41.3481 -115.1708 +03 108 +32 21:14:14 +40.3366 -109.2306 +08 112 +30 21:14:21 +39.8058 -105.6714 +11 114 +29 21:14:29 +39.4295 -102.8636 +13 116 +28 21:14:36 +39.1390 -100.4654 +14 118 +26 21:14:44 +38.9055 -098.3340 +16 119 +25 21:14:51 +38.7136 -096.3936 +17 121 +24 21:14:59 +38.5539 -094.5982 +19 122 +23 21:15:06 +38.4202 -092.9173 +20 123 +22 21:15:14 +38.3083 -091.3299 +21 125 +21 21:15:21 +38.2148 -089.8201 +22 126 +20 21:15:29 +38.1373 -088.3763 +23 127 +19 21:15:36 +38.0740 -086.9891 +24 128 +19 21:15:44 +38.0234 -085.6512 +25 129 +18 21:15:51 +37.9842 -084.3565 +26 130 +17 21:15:59 +37.9554 -083.1001 +27 131 +16 21:16:06 +37.9361 -081.8778 +27 133 +15 21:16:14 +37.9257 -080.6862 +28 134 +14 21:16:21 +37.9235 -079.5221 +29 135 +13 21:16:29 +37.9291 -078.3829 +29 136 +12 21:16:36 +37.9419 -077.2663 +30 137 +12 21:16:44 +37.9615 -076.1704 +31 138 +11 21:16:51 +37.9877 -075.0932 +31 139 +10 21:16:59 +38.0200 -074.0333 +32 140 +09 21:17:06 +38.0583 -072.9891 +32 141 +08 21:17:14 +38.1023 -071.9594 +33 142 +08 21:17:21 +38.1518 -070.9429 +33 143 +07 21:17:29 +38.2066 -069.9386 +34 145 +06 21:17:36 +38.2665 -068.9456 +34 146 +05 21:17:44 +38.3314 -067.9628 +34 147 +04 21:17:51 +38.4011 -066.9894 +35 148 +04 21:17:59 +38.4756 -066.0247 +35 149 +03 21:18:06 +38.5547 -065.0679 +35 150 +02 21:18:14 +38.6383 -064.1182 +36 151 +01 21:18:21 +38.7264 -063.1751 +36 152 +01 21:18:29 +38.8188 -062.2380 +36 153 +00 21:18:36 +38.9156 -061.3061 +36 155 -01 21:18:44 +39.0166 -060.3790 +37 156 -02 21:18:51 +39.1218 -059.4562 +37 157 -02 21:18:59 +39.2312 -058.5370 +37 158 -03 21:19:06 +39.3448 -057.6210 +37 159 -04 21:19:14 +39.4624 -056.7078 +37 160 -05 21:19:21 +39.5842 -055.7967 +37 161 -05 21:19:29 +39.7100 -054.8875 +38 163 -06 21:19:36 +39.8399 -053.9795 +38 164 -07 21:19:44 +39.9739 -053.0723 +38 165 -08 21:19:51 +40.1120 -052.1656 +38 166 -08 21:19:59 +40.2542 -051.2588 +38 167 -09 21:20:06 +40.4006 -050.3515 +38 168 -10 21:20:14 +40.5510 -049.4433 +38 170 -10 21:20:21 +40.7057 -048.5336 +38 171 -11 21:20:29 +40.8645 -047.6221 +38 172 -12 21:20:36 +41.0276 -046.7083 +38 173 -13 21:20:44 +41.1951 -045.7917 +38 174 -13 21:20:51 +41.3669 -044.8718 +37 175 -14 21:20:59 +41.5431 -043.9482 +37 177 -15 21:21:06 +41.7238 -043.0202 +37 178 -16 21:21:14 +41.9091 -042.0875 +37 179 -16 21:21:21 +42.0991 -041.1494 +37 180 -17 21:21:29 +42.2938 -040.2054 +37 181 -18 21:21:36 +42.4934 -039.2548 +36 183 -18 21:21:44 +42.6980 -038.2970 +36 184 -19 21:21:51 +42.9078 -037.3315 +36 185 -20 21:21:59 +43.1227 -036.3574 +36 186 -21 21:22:06 +43.3431 -035.3740 +35 187 -21 21:22:14 +43.5691 -034.3806 +35 189 -22 21:22:21 +43.8008 -033.3762 +35 190 -23 21:22:29 +44.0385 -032.3601 +34 191 -23 21:22:36 +44.2824 -031.3311 +34 192 -24 21:22:44 +44.5327 -030.2882 +33 193 -25 21:22:51 +44.7897 -029.2303 +33 195 -26 21:22:59 +45.0537 -028.1561 +33 196 -26 21:23:06 +45.3250 -027.0642 +32 197 -27 21:23:14 +45.6039 -025.9531 +32 198 -28 21:23:21 +45.8909 -024.8212 +31 200 -28 21:23:29 +46.1865 -023.6664 +30 201 -29 21:23:36 +46.4910 -022.4869 +30 202 -30 21:23:44 +46.8052 -021.2801 +29 203 -31 21:23:51 +47.1296 -020.0434 +29 205 -31 21:23:59 +47.4649 -018.7737 +28 206 -32 21:24:06 +47.8120 -017.4676 +27 207 -33 21:24:14 +48.1719 -016.1210 +26 209 -33 21:24:21 +48.5457 -014.7291 +26 210 -34 21:24:29 +48.9348 -013.2863 +25 211 -35 21:24:36 +49.3406 -011.7858 +24 213 -36 21:24:44 +49.7652 -010.2195 +23 214 -36 21:24:51 +50.2108 -008.5772 +22 216 -37 21:24:59 +50.6805 -006.8463 +21 218 -38 21:25:06 +51.1780 -005.0102 +20 219 -38 21:25:14 +51.7081 -003.0472 +19 221 -39 21:25:21 +52.2777 -000.9277 +17 223 -40 21:25:29 +52.8961 +001.3913 +16 225 -40 21:25:36 +53.5779 +003.9750 +14 227 -41 21:25:44 +54.3468 +006.9324 +12 230 -41 21:25:51 +55.2475 +010.4719 +10 233 -42 21:25:59 +56.3895 +015.1071 +08 237 -42 21:26:06 +58.3624 +023.6568 +03 244 -42 Longitude measured positiv to the East.

Occultation Ground Track

 Time[UT] | Lat----CENTR----Lon | Alt hh:mm:ss | +DD.dddd  +DDD.dddd | deg ---------------------------------------------- 21:14:06   +41.3481  -115.1708   +03  108  +32 21:14:14   +40.3366  -109.2306   +08  112  +30 21:14:21   +39.8058  -105.6714   +11  114  +29 21:14:29   +39.4295  -102.8636   +13  116  +28 21:14:36   +39.1390  -100.4654   +14  118  +26 21:14:44   +38.9055  -098.3340   +16  119  +25 21:14:51   +38.7136  -096.3936   +17  121  +24 21:14:59   +38.5539  -094.5982   +19  122  +23 21:15:06   +38.4202  -092.9173   +20  123  +22 21:15:14   +38.3083  -091.3299   +21  125  +21 21:15:21   +38.2148  -089.8201   +22  126  +20 21:15:29   +38.1373  -088.3763   +23  127  +19 21:15:36   +38.0740  -086.9891   +24  128  +19 21:15:44   +38.0234  -085.6512   +25  129  +18 21:15:51   +37.9842  -084.3565   +26  130  +17 21:15:59   +37.9554  -083.1001   +27  131  +16 21:16:06   +37.9361  -081.8778   +27  133  +15 21:16:14   +37.9257  -080.6862   +28  134  +14 21:16:21   +37.9235  -079.5221   +29  135  +13 21:16:29   +37.9291  -078.3829   +29  136  +12 21:16:36   +37.9419  -077.2663   +30  137  +12 21:16:44   +37.9615  -076.1704   +31  138  +11 21:16:51   +37.9877  -075.0932   +31  139  +10 21:16:59   +38.0200  -074.0333   +32  140  +09 21:17:06   +38.0583  -072.9891   +32  141  +08 21:17:14   +38.1023  -071.9594   +33  142  +08 21:17:21   +38.1518  -070.9429   +33  143  +07 21:17:29   +38.2066  -069.9386   +34  145  +06 21:17:36   +38.2665  -068.9456   +34  146  +05 21:17:44   +38.3314  -067.9628   +34  147  +04 21:17:51   +38.4011  -066.9894   +35  148  +04 21:17:59   +38.4756  -066.0247   +35  149  +03 21:18:06   +38.5547  -065.0679   +35  150  +02 21:18:14   +38.6383  -064.1182   +36  151  +01 21:18:21   +38.7264  -063.1751   +36  152  +01 21:18:29   +38.8188  -062.2380   +36  153  +00 21:18:36   +38.9156  -061.3061   +36  155  -01 21:18:44   +39.0166  -060.3790   +37  156  -02 21:18:51   +39.1218  -059.4562   +37  157  -02 21:18:59   +39.2312  -058.5370   +37  158  -03 21:19:06   +39.3448  -057.6210   +37  159  -04 21:19:14   +39.4624  -056.7078   +37  160  -05 21:19:21   +39.5842  -055.7967   +37  161  -05 21:19:29   +39.7100  -054.8875   +38  163  -06 21:19:36   +39.8399  -053.9795   +38  164  -07 21:19:44   +39.9739  -053.0723   +38  165  -08 21:19:51   +40.1120  -052.1656   +38  166  -08 21:19:59   +40.2542  -051.2588   +38  167  -09 21:20:06   +40.4006  -050.3515   +38  168  -10 21:20:14   +40.5510  -049.4433   +38  170  -10 21:20:21   +40.7057  -048.5336   +38  171  -11 21:20:29   +40.8645  -047.6221   +38  172  -12 21:20:36   +41.0276  -046.7083   +38  173  -13 21:20:44   +41.1951  -045.7917   +38  174  -13 21:20:51   +41.3669  -044.8718   +37  175  -14 21:20:59   +41.5431  -043.9482   +37  177  -15 21:21:06   +41.7238  -043.0202   +37  178  -16 21:21:14   +41.9091  -042.0875   +37  179  -16 21:21:21   +42.0991  -041.1494   +37  180  -17 21:21:29   +42.2938  -040.2054   +37  181  -18 21:21:36   +42.4934  -039.2548   +36  183  -18 21:21:44   +42.6980  -038.2970   +36  184  -19 21:21:51   +42.9078  -037.3315   +36  185  -20 21:21:59   +43.1227  -036.3574   +36  186  -21 21:22:06   +43.3431  -035.3740   +35  187  -21 21:22:14   +43.5691  -034.3806   +35  189  -22 21:22:21   +43.8008  -033.3762   +35  190  -23 21:22:29   +44.0385  -032.3601   +34  191  -23 21:22:36   +44.2824  -031.3311   +34  192  -24 21:22:44   +44.5327  -030.2882   +33  193  -25 21:22:51   +44.7897  -029.2303   +33  195  -26 21:22:59   +45.0537  -028.1561   +33  196  -26 21:23:06   +45.3250  -027.0642   +32  197  -27 21:23:14   +45.6039  -025.9531   +32  198  -28 21:23:21   +45.8909  -024.8212   +31  200  -28 21:23:29   +46.1865  -023.6664   +30  201  -29 21:23:36   +46.4910  -022.4869   +30  202  -30 21:23:44   +46.8052  -021.2801   +29  203  -31 21:23:51   +47.1296  -020.0434   +29  205  -31 21:23:59   +47.4649  -018.7737   +28  206  -32 21:24:06   +47.8120  -017.4676   +27  207  -33 21:24:14   +48.1719  -016.1210   +26  209  -33 21:24:21   +48.5457  -014.7291   +26  210  -34 21:24:29   +48.9348  -013.2863   +25  211  -35 21:24:36   +49.3406  -011.7858   +24  213  -36 21:24:44   +49.7652  -010.2195   +23  214  -36 21:24:51   +50.2108  -008.5772   +22  216  -37 21:24:59   +50.6805  -006.8463   +21  218  -38 21:25:06   +51.1780  -005.0102   +20  219  -38 21:25:14   +51.7081  -003.0472   +19  221  -39 21:25:21   +52.2777  -000.9277   +17  223  -40 21:25:29   +52.8961  +001.3913   +16  225  -40 21:25:36   +53.5779  +003.9750   +14  227  -41 21:25:44   +54.3468  +006.9324   +12  230  -41 21:25:51   +55.2475  +010.4719   +10  233  -42 21:25:59   +56.3895  +015.1071   +08  237  -42 21:26:06   +58.3624  +023.6568   +03  244  -42

Longitude measured positiv to the East.

------------------------------------------------------------------------------------------- Azm Sun | Lat----EDGE1----Lon | Lat----EDGE2----Lon deg deg | +DD.dddd +DDD.dddd | +DD.dddd +DDD.dddd --------------------------------------------- +41.4077 -115.3863 +41.2907 -114.9668 +40.3697 -109.3131 +40.3038 -109.1490 +39.8340 -105.7303 +39.7776 -105.6129 +39.4554 -102.9111 +39.4036 -102.8163 +39.1635 -100.5059 +39.1145 -100.4250 +38.9291 -098.3697 +38.8820 -098.2984 +38.7364 -096.4257 +38.6908 -096.3616 +38.5761 -094.6274 +38.5316 -094.5690 +38.4420 -092.9443 +38.3984 -092.8905 +38.3297 -091.3549 +38.2868 -091.3049 +38.2359 -089.8435 +38.1937 -089.7968 +38.1582 -088.3983 +38.1165 -088.3543 +38.0946 -087.0099 +38.0534 -086.9684 +38.0438 -085.6709 +38.0030 -085.6315 +38.0044 -084.3752 +37.9640 -084.3378 +37.9755 -083.1179 +37.9353 -083.0823 +37.9561 -081.8949 +37.9162 -081.8608 +37.9455 -080.7025 +37.9059 -080.6699 +37.9433 -079.5377 +37.9038 -079.5064 +37.9487 -078.3979 +37.9095 -078.3679 +37.9614 -077.2808 +37.9223 -077.2519 +37.9810 -076.1843 +37.9421 -076.1565 +38.0070 -075.1066 +37.9683 -075.0798 +38.0393 -074.0462 +38.0007 -074.0203 +38.0776 -073.0016 +38.0390 -072.9766 +38.1215 -071.9714 +38.0831 -071.9473 +38.1710 -070.9546 +38.1326 -070.9313 +38.2257 -069.9499 +38.1874 -069.9274 +38.2856 -068.9565 +38.2474 -068.9347 +38.3505 -067.9733 +38.3123 -067.9523 +38.4202 -066.9996 +38.3820 -066.9792 +38.4946 -066.0346 +38.4565 -066.0148 +38.5737 -065.0774 +38.5356 -065.0583 +38.6573 -064.1275 +38.6193 -064.1090 +38.7454 -063.1841 +38.7073 -063.1662 +38.8379 -062.2466 +38.7998 -062.2293 +38.9346 -061.3145 +38.8965 -061.2978 +39.0356 -060.3871 +38.9975 -060.3710 +39.1409 -059.4640 +39.1028 -059.4484 +39.2503 -058.5445 +39.2122 -058.5295 +39.3638 -057.6283 +39.3257 -057.6138 +39.4815 -056.7148 +39.4433 -056.7008 +39.6033 -055.8035 +39.5650 -055.7900 +39.7292 -054.8939 +39.6909 -054.8810 +39.8591 -053.9857 +39.8208 -053.9732 +39.9931 -053.0783 +39.9547 -053.0664 +40.1313 -052.1713 +40.0928 -052.1599 +40.2735 -051.2643 +40.2350 -051.2533 +40.4199 -050.3567 +40.3812 -050.3463 +40.5704 -049.4482 +40.5317 -049.4383 +40.7251 -048.5383 +40.6863 -048.5289 +40.8840 -047.6266 +40.8451 -047.6177 +41.0472 -046.7125 +41.0081 -046.7041 +41.2146 -045.7956 +41.1755 -045.7878 +41.3865 -044.8755 +41.3472 -044.8682 +41.5628 -043.9515 +41.5234 -043.9448 +41.7436 -043.0233 +41.7041 -043.0172 +41.9289 -042.0903 +41.8893 -042.0847 +42.1190 -041.1519 +42.0792 -041.1469 +42.3138 -040.2076 +42.2739 -040.2032 +42.5135 -039.2567 +42.4734 -039.2529 +42.7182 -038.2986 +42.6779 -038.2955 +42.9280 -037.3327 +42.8875 -037.3302 +43.1431 -036.3583 +43.1024 -036.3565 +43.3636 -035.3746 +43.3227 -035.3735 +43.5897 -034.3808 +43.5486 -034.3804 +43.8215 -033.3761 +43.7802 -033.3764 +44.0593 -032.3595 +44.0177 -032.3606 +44.3033 -031.3301 +44.2615 -031.3321 +44.5538 -030.2868 +44.5116 -030.2896 +44.8109 -029.2284 +44.7685 -029.2322 +45.0750 -028.1537 +45.0323 -028.1585 +45.3465 -027.0613 +45.3034 -027.0671 +45.6256 -025.9497 +45.5822 -025.9566 +45.9128 -024.8171 +45.8690 -024.8252 +46.2086 -023.6618 +46.1644 -023.6711 +46.5134 -022.4815 +46.4687 -022.4922 +46.8277 -021.2740 +46.7827 -021.2861 +47.1524 -020.0365 +47.1068 -020.0502 +47.4880 -018.7660 +47.4419 -018.7814 +47.8354 -017.4590 +47.7887 -017.4762 +48.1956 -016.1114 +48.1483 -016.1306 +48.5697 -014.7183 +48.5217 -014.7399 +48.9592 -013.2743 +48.9104 -013.2983 +49.3654 -011.7724 +49.3158 -011.7993 +49.7905 -010.2044 +49.7399 -010.2346 +50.2367 -008.5603 +50.1850 -008.5942 +50.7070 -006.8271 +50.6541 -006.8654 +51.2051 -004.9884 +51.1508 -005.0319 +51.7361 -003.0223 +51.6801 -003.0721 +52.3067 -000.8989 +52.2487 -000.9565 +52.9265 +001.4252 +52.8659 +001.3575 +53.6099 +004.0157 +53.5460 +003.9344 +54.3812 +006.9831 +54.3124 +006.8820 +55.2857 +010.5391 +55.2095 +010.4052 +56.4355 +015.2098 +56.3437 +015.0057 +58.4643 +024.0256 +58.2669 +023.3192 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.