Cora»OccDetail

Stellar Occultation by (1345) Potomac on 2025-12-13 (02:21:57 UT)

Event Details
Occultation UUID [and db] : d6b65580-ddb8-11f0-547e-86460bdb302a [observed] Occultation Date + Time : 2025-12-13 at 02:21:57 UT +/- 0.02 min [1] Object Designation : (1345) Potomac Star Designation : GDR3 3285935480802882944 Star Coordinates (ICRF) : RA = 04 29 53.4074, DE = +07 03 06.028 [2] Star Magnitudes : G = 12.56 mag, RP = 12.06 mag, BP = 12.9 mag Object Magnitude : V = 14.87 mag Estimated Magnitude Drop : 2.4 mag Estimated Max. Duration : 5.7 sec Speed of the shadow : 12.5 km/s Object Mean Diameter : 71.8 km (src: astorb) => apparent = 41 mas Apparent Motion : 0.4250 arcs/min @ PA = 274 deg Horizontal Parallax : 3.6120 arcs Dynamical Class : MBA Elongation to Moon & Sun : 117° (sunlit = 38%), Sun = 160° Cross-track uncertainty : 2.0 mas = 3 km = 0.05 path-width (1-sig) RUWE and duplicate source : 1.05 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#76 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and db] : d6b65580-ddb8-11f0-547e-86460bdb302a [observed]

 Occultation Date + Time   : 2025-12-13 at 02:21:57 UT +/- 0.02 min  [1]
 Object Designation        : (1345) Potomac
 Star Designation          : GDR3 3285935480802882944
 Star Coordinates (ICRF)   : RA = 04 29 53.4074, DE = +07 03 06.028  [2]
 Star Magnitudes           : G = 12.56 mag, RP = 12.06 mag, BP = 12.9 mag
 Object Magnitude          : V = 14.87 mag
 Estimated Magnitude Drop  : 2.4 mag
 Estimated Max. Duration   : 5.7 sec
 Speed of the shadow       : 12.5 km/s
 Object Mean Diameter      : 71.8 km  (src: astorb) => apparent = 41 mas
 Apparent Motion           : 0.4250 arcs/min @ PA = 274 deg
 Horizontal Parallax       : 3.6120 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 117° (sunlit = 38%), Sun = 160°
 Cross-track uncertainty   : 2.0 mas = 3 km = 0.05 path-width (1-sig)
 RUWE and duplicate source : 1.05 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#76
 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

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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 ---------------------------------------------- 02:16:27 +45.8904 +038.5615 +07 273 -27 02:16:33 +46.5022 +034.0795 +10 270 -30 02:16:39 +46.9803 +030.6362 +12 267 -33 02:16:46 +47.3905 +027.7097 +14 265 -35 02:16:52 +47.7575 +025.1061 +16 263 -36 02:16:58 +48.0935 +022.7279 +18 261 -38 02:17:05 +48.4058 +020.5180 +19 259 -39 02:17:11 +48.6994 +018.4393 +20 257 -41 02:17:17 +48.9773 +016.4663 +21 256 -42 02:17:24 +49.2420 +014.5805 +22 254 -43 02:17:30 +49.4953 +012.7681 +24 252 -44 02:17:36 +49.7386 +011.0182 +24 251 -45 02:17:43 +49.9730 +009.3224 +25 249 -46 02:17:49 +50.1994 +007.6736 +26 248 -47 02:17:55 +50.4184 +006.0662 +27 246 -48 02:18:02 +50.6308 +004.4955 +28 245 -48 02:18:08 +50.8370 +002.9574 +29 243 -49 02:18:14 +51.0374 +001.4484 +29 242 -50 02:18:21 +51.2326 -000.0343 +30 240 -51 02:18:27 +51.4226 -001.4935 +31 239 -51 02:18:33 +51.6080 -002.9313 +31 237 -52 02:18:39 +51.7888 -004.3498 +32 236 -52 02:18:46 +51.9654 -005.7507 +33 234 -53 02:18:52 +52.1379 -007.1357 +33 233 -53 02:18:58 +52.3064 -008.5062 +34 231 -54 02:19:05 +52.4712 -009.8636 +34 230 -54 02:19:11 +52.6324 -011.2090 +35 228 -55 02:19:17 +52.7900 -012.5434 +35 227 -55 02:19:24 +52.9443 -013.8680 +36 225 -56 02:19:30 +53.0952 -015.1836 +36 224 -56 02:19:36 +53.2429 -016.4911 +37 222 -56 02:19:43 +53.3875 -017.7912 +37 221 -57 02:19:49 +53.5290 -019.0848 +37 219 -57 02:19:55 +53.6675 -020.3725 +38 218 -57 02:20:02 +53.8031 -021.6549 +38 216 -57 02:20:08 +53.9357 -022.9327 +38 215 -58 02:20:14 +54.0655 -024.2064 +39 213 -58 02:20:21 +54.1925 -025.4767 +39 212 -58 02:20:27 +54.3167 -026.7440 +39 210 -58 02:20:33 +54.4381 -028.0087 +40 208 -58 02:20:40 +54.5568 -029.2715 +40 207 -58 02:20:46 +54.6728 -030.5328 +40 205 -58 02:20:52 +54.7860 -031.7929 +40 204 -58 02:20:58 +54.8967 -033.0524 +40 202 -58 02:21:05 +55.0046 -034.3117 +40 200 -58 02:21:11 +55.1099 -035.5711 +41 199 -58 02:21:17 +55.2125 -036.8310 +41 197 -58 02:21:24 +55.3125 -038.0919 +41 196 -58 02:21:30 +55.4098 -039.3540 +41 194 -58 02:21:36 +55.5045 -040.6179 +41 192 -58 02:21:43 +55.5964 -041.8838 +41 191 -57 02:21:49 +55.6858 -043.1521 +41 189 -57 02:21:55 +55.7724 -044.4232 +41 187 -57 02:22:02 +55.8563 -045.6974 +41 186 -57 02:22:08 +55.9375 -046.9752 +41 184 -56 02:22:14 +56.0160 -048.2568 +41 182 -56 02:22:21 +56.0917 -049.5426 +41 181 -56 02:22:27 +56.1646 -050.8331 +41 179 -55 02:22:33 +56.2347 -052.1285 +41 177 -55 02:22:40 +56.3019 -053.4292 +41 176 -55 02:22:46 +56.3663 -054.7357 +41 174 -54 02:22:52 +56.4277 -056.0483 +40 172 -54 02:22:59 +56.4862 -057.3675 +40 171 -54 02:23:05 +56.5417 -058.6936 +40 169 -53 02:23:11 +56.5941 -060.0271 +40 167 -53 02:23:17 +56.6434 -061.3685 +40 166 -52 02:23:24 +56.6895 -062.7181 +39 164 -52 02:23:30 +56.7325 -064.0766 +39 162 -51 02:23:36 +56.7721 -065.4443 +39 161 -51 02:23:43 +56.8084 -066.8218 +39 159 -50 02:23:49 +56.8412 -068.2097 +38 157 -50 02:23:55 +56.8706 -069.6086 +38 156 -49 02:24:02 +56.8963 -071.0191 +38 154 -48 02:24:08 +56.9184 -072.4418 +37 152 -48 02:24:14 +56.9367 -073.8776 +37 151 -47 02:24:21 +56.9511 -075.3270 +36 149 -47 02:24:27 +56.9615 -076.7909 +36 147 -46 02:24:33 +56.9677 -078.2703 +36 146 -45 02:24:40 +56.9697 -079.7661 +35 144 -45 02:24:46 +56.9672 -081.2792 +35 142 -44 02:24:52 +56.9602 -082.8108 +34 140 -43 02:24:59 +56.9484 -084.3622 +34 139 -42 02:25:05 +56.9316 -085.9347 +33 137 -42 02:25:11 +56.9096 -087.5298 +33 135 -41 02:25:18 +56.8823 -089.1491 +32 134 -40 02:25:24 +56.8492 -090.7945 +31 132 -39 02:25:30 +56.8101 -092.4680 +31 130 -38 02:25:36 +56.7648 -094.1721 +30 128 -37 02:25:43 +56.7127 -095.9094 +29 127 -37 02:25:49 +56.6535 -097.6828 +28 125 -36 02:25:55 +56.5866 -099.4960 +28 123 -35 02:26:02 +56.5116 -101.3530 +27 121 -34 02:26:08 +56.4277 -103.2587 +26 119 -33 02:26:14 +56.3341 -105.2187 +25 117 -32 02:26:21 +56.2299 -107.2399 +24 115 -31 02:26:27 +56.1139 -109.3308 +23 113 -29 02:26:33 +55.9848 -111.5019 +22 111 -28 02:26:40 +55.8406 -113.7665 +21 109 -27 02:26:46 +55.6791 -116.1419 +20 107 -26 02:26:52 +55.4973 -118.6515 +19 105 -24 02:26:59 +55.2907 -121.3280 +17 103 -23 02:27:05 +55.0531 -124.2196 +16 100 -21 02:27:11 +54.7745 -127.4027 +14 097 -19 02:27:18 +54.4375 -131.0126 +12 094 -17 02:27:24 +54.0054 -135.3370 +09 091 -15 02:27:30 +53.3626 -141.2867 +06 086 -11 Longitude measured positiv to the East.

Occultation Ground Track

 Time[UT] | Lat----CENTR----Lon | Alt hh:mm:ss | +DD.dddd  +DDD.dddd | deg ---------------------------------------------- 02:16:27   +45.8904  +038.5615   +07  273  -27 02:16:33   +46.5022  +034.0795   +10  270  -30 02:16:39   +46.9803  +030.6362   +12  267  -33 02:16:46   +47.3905  +027.7097   +14  265  -35 02:16:52   +47.7575  +025.1061   +16  263  -36 02:16:58   +48.0935  +022.7279   +18  261  -38 02:17:05   +48.4058  +020.5180   +19  259  -39 02:17:11   +48.6994  +018.4393   +20  257  -41 02:17:17   +48.9773  +016.4663   +21  256  -42 02:17:24   +49.2420  +014.5805   +22  254  -43 02:17:30   +49.4953  +012.7681   +24  252  -44 02:17:36   +49.7386  +011.0182   +24  251  -45 02:17:43   +49.9730  +009.3224   +25  249  -46 02:17:49   +50.1994  +007.6736   +26  248  -47 02:17:55   +50.4184  +006.0662   +27  246  -48 02:18:02   +50.6308  +004.4955   +28  245  -48 02:18:08   +50.8370  +002.9574   +29  243  -49 02:18:14   +51.0374  +001.4484   +29  242  -50 02:18:21   +51.2326  -000.0343   +30  240  -51 02:18:27   +51.4226  -001.4935   +31  239  -51 02:18:33   +51.6080  -002.9313   +31  237  -52 02:18:39   +51.7888  -004.3498   +32  236  -52 02:18:46   +51.9654  -005.7507   +33  234  -53 02:18:52   +52.1379  -007.1357   +33  233  -53 02:18:58   +52.3064  -008.5062   +34  231  -54 02:19:05   +52.4712  -009.8636   +34  230  -54 02:19:11   +52.6324  -011.2090   +35  228  -55 02:19:17   +52.7900  -012.5434   +35  227  -55 02:19:24   +52.9443  -013.8680   +36  225  -56 02:19:30   +53.0952  -015.1836   +36  224  -56 02:19:36   +53.2429  -016.4911   +37  222  -56 02:19:43   +53.3875  -017.7912   +37  221  -57 02:19:49   +53.5290  -019.0848   +37  219  -57 02:19:55   +53.6675  -020.3725   +38  218  -57 02:20:02   +53.8031  -021.6549   +38  216  -57 02:20:08   +53.9357  -022.9327   +38  215  -58 02:20:14   +54.0655  -024.2064   +39  213  -58 02:20:21   +54.1925  -025.4767   +39  212  -58 02:20:27   +54.3167  -026.7440   +39  210  -58 02:20:33   +54.4381  -028.0087   +40  208  -58 02:20:40   +54.5568  -029.2715   +40  207  -58 02:20:46   +54.6728  -030.5328   +40  205  -58 02:20:52   +54.7860  -031.7929   +40  204  -58 02:20:58   +54.8967  -033.0524   +40  202  -58 02:21:05   +55.0046  -034.3117   +40  200  -58 02:21:11   +55.1099  -035.5711   +41  199  -58 02:21:17   +55.2125  -036.8310   +41  197  -58 02:21:24   +55.3125  -038.0919   +41  196  -58 02:21:30   +55.4098  -039.3540   +41  194  -58 02:21:36   +55.5045  -040.6179   +41  192  -58 02:21:43   +55.5964  -041.8838   +41  191  -57 02:21:49   +55.6858  -043.1521   +41  189  -57 02:21:55   +55.7724  -044.4232   +41  187  -57 02:22:02   +55.8563  -045.6974   +41  186  -57 02:22:08   +55.9375  -046.9752   +41  184  -56 02:22:14   +56.0160  -048.2568   +41  182  -56 02:22:21   +56.0917  -049.5426   +41  181  -56 02:22:27   +56.1646  -050.8331   +41  179  -55 02:22:33   +56.2347  -052.1285   +41  177  -55 02:22:40   +56.3019  -053.4292   +41  176  -55 02:22:46   +56.3663  -054.7357   +41  174  -54 02:22:52   +56.4277  -056.0483   +40  172  -54 02:22:59   +56.4862  -057.3675   +40  171  -54 02:23:05   +56.5417  -058.6936   +40  169  -53 02:23:11   +56.5941  -060.0271   +40  167  -53 02:23:17   +56.6434  -061.3685   +40  166  -52 02:23:24   +56.6895  -062.7181   +39  164  -52 02:23:30   +56.7325  -064.0766   +39  162  -51 02:23:36   +56.7721  -065.4443   +39  161  -51 02:23:43   +56.8084  -066.8218   +39  159  -50 02:23:49   +56.8412  -068.2097   +38  157  -50 02:23:55   +56.8706  -069.6086   +38  156  -49 02:24:02   +56.8963  -071.0191   +38  154  -48 02:24:08   +56.9184  -072.4418   +37  152  -48 02:24:14   +56.9367  -073.8776   +37  151  -47 02:24:21   +56.9511  -075.3270   +36  149  -47 02:24:27   +56.9615  -076.7909   +36  147  -46 02:24:33   +56.9677  -078.2703   +36  146  -45 02:24:40   +56.9697  -079.7661   +35  144  -45 02:24:46   +56.9672  -081.2792   +35  142  -44 02:24:52   +56.9602  -082.8108   +34  140  -43 02:24:59   +56.9484  -084.3622   +34  139  -42 02:25:05   +56.9316  -085.9347   +33  137  -42 02:25:11   +56.9096  -087.5298   +33  135  -41 02:25:18   +56.8823  -089.1491   +32  134  -40 02:25:24   +56.8492  -090.7945   +31  132  -39 02:25:30   +56.8101  -092.4680   +31  130  -38 02:25:36   +56.7648  -094.1721   +30  128  -37 02:25:43   +56.7127  -095.9094   +29  127  -37 02:25:49   +56.6535  -097.6828   +28  125  -36 02:25:55   +56.5866  -099.4960   +28  123  -35 02:26:02   +56.5116  -101.3530   +27  121  -34 02:26:08   +56.4277  -103.2587   +26  119  -33 02:26:14   +56.3341  -105.2187   +25  117  -32 02:26:21   +56.2299  -107.2399   +24  115  -31 02:26:27   +56.1139  -109.3308   +23  113  -29 02:26:33   +55.9848  -111.5019   +22  111  -28 02:26:40   +55.8406  -113.7665   +21  109  -27 02:26:46   +55.6791  -116.1419   +20  107  -26 02:26:52   +55.4973  -118.6515   +19  105  -24 02:26:59   +55.2907  -121.3280   +17  103  -23 02:27:05   +55.0531  -124.2196   +16  100  -21 02:27:11   +54.7745  -127.4027   +14  097  -19 02:27:18   +54.4375  -131.0126   +12  094  -17 02:27:24   +54.0054  -135.3370   +09  091  -15 02:27:30   +53.3626  -141.2867   +06  086  -11

Longitude measured positiv to the East.

------------------------------------------------------------------------------------------- Azm Sun | Lat----EDGE1----Lon | Lat----EDGE2----Lon deg deg | +DD.dddd +DDD.dddd | +DD.dddd +DDD.dddd --------------------------------------------- +45.7439 +036.0028 +45.9205 +042.0722 +46.2709 +032.1786 +46.6975 +036.2915 +46.7078 +029.0478 +47.2339 +032.4019 +47.0919 +026.3146 +47.6772 +029.2275 +47.4401 +023.8464 +48.0666 +026.4596 +47.7617 +021.5705 +48.4193 +023.9616 +48.0624 +019.4416 +48.7450 +021.6588 +48.3461 +017.4296 +49.0494 +019.5050 +48.6157 +015.5130 +49.3367 +017.4694 +48.8730 +013.6759 +49.6095 +015.5301 +49.1197 +011.9063 +49.8699 +013.6710 +49.3570 +010.1945 +50.1197 +011.8799 +49.5860 +008.5330 +50.3599 +010.1470 +49.8073 +006.9156 +50.5916 +008.4647 +50.0217 +005.3370 +50.8156 +006.8266 +50.2297 +003.7930 +51.0326 +005.2274 +50.4318 +002.2798 +51.2431 +003.6628 +50.6285 +000.7943 +51.4476 +002.1291 +50.8199 -000.6663 +51.6466 +000.6230 +51.0065 -002.1044 +51.8403 -000.8583 +51.1886 -003.5221 +52.0292 -002.3172 +51.3663 -004.9214 +52.2133 -003.7558 +51.5398 -006.3038 +52.3931 -005.1761 +51.7093 -007.6709 +52.5686 -006.5798 +51.8751 -009.0242 +52.7401 -007.9684 +52.0372 -010.3647 +52.9077 -009.3433 +52.1957 -011.6937 +53.0716 -010.7058 +52.3509 -013.0121 +53.2318 -012.0569 +52.5027 -014.3210 +53.3886 -013.3978 +52.6513 -015.6212 +53.5420 -014.7294 +52.7967 -016.9136 +53.6922 -016.0526 +52.9391 -018.1988 +53.8390 -017.3683 +53.0784 -019.4776 +53.9828 -018.6772 +53.2149 -020.7507 +54.1235 -019.9800 +53.3484 -022.0187 +54.2611 -021.2774 +53.4791 -023.2822 +54.3958 -022.5701 +53.6070 -024.5417 +54.5276 -023.8586 +53.7321 -025.7977 +54.6565 -025.1436 +53.8545 -027.0509 +54.7826 -026.4255 +53.9742 -028.3016 +54.9058 -027.7049 +54.0912 -029.5503 +55.0262 -028.9823 +54.2055 -030.7975 +55.1439 -030.2581 +54.3172 -032.0436 +55.2589 -031.5329 +54.4263 -033.2890 +55.3711 -032.8070 +54.5328 -034.5341 +55.4806 -034.0809 +54.6366 -035.7793 +55.5873 -035.3550 +54.7379 -037.0250 +55.6914 -036.6297 +54.8365 -038.2716 +55.7927 -037.9055 +54.9326 -039.5193 +55.8914 -039.1826 +55.0260 -040.7687 +55.9873 -040.4615 +55.1169 -042.0200 +56.0805 -041.7426 +55.2051 -043.2737 +56.1710 -043.0262 +55.2906 -044.5299 +56.2587 -044.3127 +55.3735 -045.7892 +56.3437 -045.6025 +55.4538 -047.0519 +56.4259 -046.8960 +55.5314 -048.3182 +56.5053 -048.1934 +55.6062 -049.5886 +56.5819 -049.4953 +55.6784 -050.8635 +56.6556 -050.8020 +55.7477 -052.1431 +56.7264 -052.1138 +55.8143 -053.4279 +56.7943 -053.4312 +55.8781 -054.7182 +56.8593 -054.7546 +55.9390 -056.0144 +56.9213 -056.0843 +55.9970 -057.3170 +56.9803 -057.4208 +56.0520 -058.6263 +57.0361 -058.7645 +56.1041 -059.9426 +57.0889 -060.1159 +56.1532 -061.2666 +57.1385 -061.4754 +56.1991 -062.5986 +57.1848 -062.8435 +56.2420 -063.9391 +57.2278 -064.2207 +56.2816 -065.2885 +57.2675 -065.6075 +56.3179 -066.6474 +57.3037 -067.0045 +56.3509 -068.0164 +57.3364 -068.4122 +56.3805 -069.3959 +57.3654 -069.8313 +56.4066 -070.7867 +57.3908 -071.2625 +56.4291 -072.1893 +57.4124 -072.7063 +56.4479 -073.6044 +57.4301 -074.1636 +56.4630 -075.0327 +57.4438 -075.6351 +56.4741 -076.4751 +57.4534 -077.1217 +56.4812 -077.9323 +57.4587 -078.6243 +56.4842 -079.4053 +57.4596 -080.1439 +56.4828 -080.8950 +57.4559 -081.6816 +56.4771 -082.4026 +57.4475 -083.2385 +56.4667 -083.9291 +57.4341 -084.8160 +56.4515 -085.4760 +57.4157 -086.4155 +56.4313 -087.0444 +57.3918 -088.0385 +56.4059 -088.6362 +57.3623 -089.6869 +56.3750 -090.2529 +57.3269 -091.3626 +56.3384 -091.8965 +57.2853 -093.0678 +56.2957 -093.5692 +57.2371 -094.8050 +56.2465 -095.2736 +57.1819 -096.5771 +56.1905 -097.0123 +57.1192 -098.3874 +56.1273 -098.7887 +57.0485 -100.2397 +56.0562 -100.6066 +56.9691 -102.1385 +55.9767 -102.4703 +56.8804 -104.0890 +55.8880 -104.3850 +56.7815 -106.0976 +55.7893 -106.3570 +56.6712 -108.1720 +55.6796 -108.3938 +56.5484 -110.3215 +55.5576 -110.5047 +56.4114 -112.5583 +55.4217 -112.7014 +56.2581 -114.8975 +55.2699 -114.9990 +56.0858 -117.3594 +55.0995 -117.4172 +55.8908 -119.9719 +54.9070 -119.9834 +55.6680 -122.7749 +54.6873 -122.7365 +55.4093 -125.8295 +54.4325 -125.7358 +55.1015 -129.2373 +54.1300 -129.0800 +54.7196 -133.1943 +53.7556 -132.9577 +54.2013 -138.1884 +53.2503 -137.8321 +53.1757 -147.1611 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.