Cora»OccDetail

Stellar Occultation by (16) Psyche on 2025-12-08 (19:37:55 UT)

Event Details
Occultation UUID [and db] : d3cace50-ddb8-11f0-547e-623c7ffc0576 [observed] Occultation Date + Time : 2025-12-08 at 19:37:55 UT +/- 0.01 min [1] Object Designation : (16) Psyche Star Designation : GDR3 3407280264103944960 Star Coordinates (ICRF) : RA = 04 59 56.5897, DE = +17 59 01.834 [2] Star Magnitudes : G = 10.62 mag, RP = 10.09 mag, BP = 10.98 mag Object Magnitude : V = 9.68 mag Estimated Magnitude Drop : 0.4 mag Estimated Max. Duration : 22.4 sec Speed of the shadow : 11.3 km/s Object Mean Diameter : 253.2 km (src: astorb) => apparent = 207 mas Apparent Motion : 0.5550 arcs/min @ PA = 266 deg Horizontal Parallax : 5.2090 arcs Dynamical Class : MBA Elongation to Moon & Sun : 55° (sunlit = 80%), Sun = 175° Cross-track uncertainty : 2.0 mas = 2 km = 0.01 path-width (1-sig) RUWE and duplicate source : 0.95 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#92 Note : FP:true Object is a <Gaia mass determination> target ! [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and db] : d3cace50-ddb8-11f0-547e-623c7ffc0576 [observed]

 Occultation Date + Time   : 2025-12-08 at 19:37:55 UT +/- 0.01 min  [1]
 Object Designation        : (16) Psyche
 Star Designation          : GDR3 3407280264103944960
 Star Coordinates (ICRF)   : RA = 04 59 56.5897, DE = +17 59 01.834  [2]
 Star Magnitudes           : G = 10.62 mag, RP = 10.09 mag, BP = 10.98 mag
 Object Magnitude          : V = 9.68 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 22.4 sec
 Speed of the shadow       : 11.3 km/s
 Object Mean Diameter      : 253.2 km  (src: astorb) => apparent = 207 mas
 Apparent Motion           : 0.5550 arcs/min @ PA = 266 deg
 Horizontal Parallax       : 5.2090 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 55° (sunlit = 80%), Sun = 175°
 Cross-track uncertainty   : 2.0 mas = 2 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 0.95 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#92
 Note                      : FP:true

 Object is a <Gaia mass determination> target !

 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

More Data and Informations

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Occultation Ground Track
Time[UT] \| Lat----CENTR----Lon \| Alt hh:mm:ss \| +DD.dddd +DDD.dddd \| deg ---------------------------------------------- 19:31:00 +46.8157 +153.2504 +14 282 -18 19:31:25 +49.3810 +144.0361 +20 274 -24 19:31:50 +51.2189 +136.6109 +25 268 -29 19:32:14 +52.6713 +130.0051 +29 262 -33 19:32:39 +53.8624 +123.8730 +32 256 -36 19:33:03 +54.8536 +118.0468 +35 250 -39 19:33:28 +55.6803 +112.4323 +38 244 -42 19:33:53 +56.3650 +106.9724 +40 238 -44 19:34:17 +56.9230 +101.6308 +42 232 -47 19:34:42 +57.3651 +096.3845 +44 226 -48 19:35:07 +57.6994 +091.2186 +45 219 -50 19:35:31 +57.9324 +086.1241 +47 213 -51 19:35:56 +58.0691 +081.0956 +48 206 -53 19:36:21 +58.1138 +076.1302 +49 199 -54 19:36:45 +58.0700 +071.2265 +49 192 -54 19:37:10 +57.9411 +066.3838 +50 185 -55 19:37:35 +57.7297 +061.6013 +50 178 -55 19:37:59 +57.4384 +056.8781 +50 171 -55 19:38:24 +57.0691 +052.2121 +50 165 -55 19:38:49 +56.6237 +047.6006 +50 158 -54 19:39:13 +56.1033 +043.0390 +49 151 -54 19:39:38 +55.5088 +038.5213 +48 145 -53 19:40:02 +54.8404 +034.0395 +47 139 -51 19:40:27 +54.0973 +029.5833 +46 133 -50 19:40:52 +53.2782 +025.1396 +45 127 -48 19:41:16 +52.3800 +020.6917 +43 121 -46 19:41:41 +51.3985 +016.2186 +41 116 -44 19:42:06 +50.3268 +011.6929 +39 111 -42 19:42:30 +49.1547 +007.0779 +37 106 -40 19:42:55 +47.8672 +002.3230 +34 101 -37 19:43:20 +46.4402 -002.6463 +31 096 -33 19:43:44 +44.8344 -007.9490 +27 091 -30 19:44:09 +42.9771 -013.7991 +23 086 -25 19:44:34 +40.7057 -020.6720 +18 081 -20 19:44:58 +37.4313 -030.2977 +10 075 -12 Longitude measured positiv to the East.

Occultation Ground Track

 Time[UT] | Lat----CENTR----Lon | Alt hh:mm:ss | +DD.dddd  +DDD.dddd | deg ---------------------------------------------- 19:31:00   +46.8157  +153.2504   +14  282  -18 19:31:25   +49.3810  +144.0361   +20  274  -24 19:31:50   +51.2189  +136.6109   +25  268  -29 19:32:14   +52.6713  +130.0051   +29  262  -33 19:32:39   +53.8624  +123.8730   +32  256  -36 19:33:03   +54.8536  +118.0468   +35  250  -39 19:33:28   +55.6803  +112.4323   +38  244  -42 19:33:53   +56.3650  +106.9724   +40  238  -44 19:34:17   +56.9230  +101.6308   +42  232  -47 19:34:42   +57.3651  +096.3845   +44  226  -48 19:35:07   +57.6994  +091.2186   +45  219  -50 19:35:31   +57.9324  +086.1241   +47  213  -51 19:35:56   +58.0691  +081.0956   +48  206  -53 19:36:21   +58.1138  +076.1302   +49  199  -54 19:36:45   +58.0700  +071.2265   +49  192  -54 19:37:10   +57.9411  +066.3838   +50  185  -55 19:37:35   +57.7297  +061.6013   +50  178  -55 19:37:59   +57.4384  +056.8781   +50  171  -55 19:38:24   +57.0691  +052.2121   +50  165  -55 19:38:49   +56.6237  +047.6006   +50  158  -54 19:39:13   +56.1033  +043.0390   +49  151  -54 19:39:38   +55.5088  +038.5213   +48  145  -53 19:40:02   +54.8404  +034.0395   +47  139  -51 19:40:27   +54.0973  +029.5833   +46  133  -50 19:40:52   +53.2782  +025.1396   +45  127  -48 19:41:16   +52.3800  +020.6917   +43  121  -46 19:41:41   +51.3985  +016.2186   +41  116  -44 19:42:06   +50.3268  +011.6929   +39  111  -42 19:42:30   +49.1547  +007.0779   +37  106  -40 19:42:55   +47.8672  +002.3230   +34  101  -37 19:43:20   +46.4402  -002.6463   +31  096  -33 19:43:44   +44.8344  -007.9490   +27  091  -30 19:44:09   +42.9771  -013.7991   +23  086  -25 19:44:34   +40.7057  -020.6720   +18  081  -20 19:44:58   +37.4313  -030.2977   +10  075  -12

Longitude measured positiv to the East.

------------------------------------------------------------------------------------------- Azm Sun | Lat----EDGE1----Lon | Lat----EDGE2----Lon deg deg | +DD.dddd +DDD.dddd | +DD.dddd +DDD.dddd --------------------------------------------- +46.4701 +148.9958 +46.7892 +158.6833 +48.6658 +140.7578 +49.9664 +147.8273 +50.3166 +133.8133 +52.0503 +139.7759 +51.6441 +127.5360 +53.6559 +132.7787 +52.7415 +121.6669 +54.9583 +126.3464 +53.6582 +116.0719 +56.0367 +120.2619 +54.4240 +110.6722 +56.9343 +114.4093 +55.0582 +105.4188 +57.6776 +108.7208 +55.5744 +100.2797 +58.2840 +103.1548 +55.9823 +095.2338 +58.7658 +097.6852 +56.2893 +090.2673 +59.1319 +092.2965 +56.5014 +085.3708 +59.3893 +086.9797 +56.6232 +080.5386 +59.5435 +081.7302 +56.6586 +075.7667 +59.5991 +076.5465 +56.6110 +071.0528 +59.5601 +071.4286 +56.4833 +066.3950 +59.4300 +066.3772 +56.2779 +061.7917 +59.2121 +061.3930 +55.9970 +057.2410 +58.9090 +056.4760 +55.6424 +052.7404 +58.5232 +051.6253 +55.2156 +048.2865 +58.0567 +046.8383 +54.7176 +043.8749 +57.5112 +042.1109 +54.1489 +039.4996 +56.8876 +037.4367 +53.5097 +035.1530 +56.1863 +032.8071 +52.7992 +030.8258 +55.4068 +028.2108 +52.0159 +026.5059 +54.5475 +023.6332 +51.1571 +022.1783 +53.6053 +019.0558 +50.2189 +017.8241 +52.5753 +014.4548 +49.1950 +013.4187 +51.4499 +009.7991 +48.0765 +008.9299 +50.2175 +005.0466 +46.8502 +004.3136 +48.8603 +000.1385 +45.4958 -000.4940 +47.3497 -005.0145 +43.9808 -005.5913 +45.6365 -010.5596 +42.2480 -011.1470 +43.6245 -016.7796 +40.1804 -017.5035 +41.0690 -024.3890 +37.4465 -025.6329 +36.3132 -038.2812 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.