Cora»OccDetail

Stellar Occultation by (98) Ianthe on 2025-09-07 (00:03:40 UT)

Event Details
Occultation UUID [and db] : 6a9b1f30-ddb7-11f0-547e-3f75aa5b64e6 [observed] Occultation Date + Time : 2025-09-07 at 00:03:40 UT +/- 0.0 min [1] Object Designation : (98) Ianthe Star Designation : GDR3 0186592311556117760 Star Coordinates (ICRF) : RA = 05 07 30.8553, DE = +37 27 17.437 [2] Star Magnitudes : G = 14.05 mag, RP = 13.38 mag, BP = 14.54 mag Object Magnitude : V = 14.14 mag Estimated Magnitude Drop : 0.8 mag Estimated Max. Duration : 4.8 sec Speed of the shadow : 21.7 km/s Object Mean Diameter : 104.5 km (src: astorb) => apparent = 57 mas Apparent Motion : 0.7133 arcs/min @ PA = 64 deg Horizontal Parallax : 3.4880 arcs Dynamical Class : MBA Elongation to Moon & Sun : 104° (sunlit = 99%), Sun = 86° Cross-track uncertainty : 0.7 mas = 1 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.2 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#125 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and db] : 6a9b1f30-ddb7-11f0-547e-3f75aa5b64e6 [observed]

 Occultation Date + Time   : 2025-09-07 at 00:03:40 UT +/- 0.0 min  [1]
 Object Designation        : (98) Ianthe
 Star Designation          : GDR3 0186592311556117760
 Star Coordinates (ICRF)   : RA = 05 07 30.8553, DE = +37 27 17.437  [2]
 Star Magnitudes           : G = 14.05 mag, RP = 13.38 mag, BP = 14.54 mag
 Object Magnitude          : V = 14.14 mag
 Estimated Magnitude Drop  : 0.8 mag
 Estimated Max. Duration   : 4.8 sec
 Speed of the shadow       : 21.7 km/s
 Object Mean Diameter      : 104.5 km  (src: astorb) => apparent = 57 mas
 Apparent Motion           : 0.7133 arcs/min @ PA = 64 deg
 Horizontal Parallax       : 3.4880 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 104° (sunlit = 99%), Sun = 86°
 Cross-track uncertainty   : 0.7 mas = 1 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.2 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#125
 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 ---------------------------------------------- 00:00:31 +21.3297 -009.4253 +05 052 -61 00:00:36 +24.9682 -005.7239 +10 053 -59 00:00:41 +27.5074 -003.3913 +14 055 -56 00:00:46 +29.6320 -001.5712 +16 056 -54 00:00:52 +31.5197 -000.0428 +18 057 -52 00:00:57 +33.2493 +001.2912 +20 058 -51 00:01:02 +34.8637 +002.4835 +22 059 -49 00:01:08 +36.3899 +003.5668 +23 060 -47 00:01:13 +37.8456 +004.5627 +25 061 -46 00:01:18 +39.2438 +005.4864 +26 062 -44 00:01:23 +40.5938 +006.3491 +27 063 -43 00:01:29 +41.9030 +007.1592 +29 064 -41 00:01:34 +43.1771 +007.9233 +30 065 -40 00:01:39 +44.4206 +008.6465 +31 066 -39 00:01:45 +45.6376 +009.3329 +32 067 -38 00:01:50 +46.8310 +009.9859 +32 068 -36 00:01:55 +48.0037 +010.6081 +33 069 -35 00:02:01 +49.1579 +011.2018 +34 070 -34 00:02:06 +50.2957 +011.7687 +35 071 -33 00:02:11 +51.4188 +012.3102 +36 072 -31 00:02:16 +52.5287 +012.8275 +36 073 -30 00:02:22 +53.6270 +013.3214 +37 075 -29 00:02:27 +54.7147 +013.7925 +37 076 -28 00:02:32 +55.7932 +014.2411 +38 077 -27 00:02:38 +56.8633 +014.6674 +38 078 -26 00:02:43 +57.9261 +015.0711 +39 079 -25 00:02:48 +58.9824 +015.4521 +39 080 -24 00:02:54 +60.0331 +015.8095 +39 081 -23 00:02:59 +61.0790 +016.1426 +40 083 -22 00:03:04 +62.1206 +016.4502 +40 084 -20 00:03:09 +63.1588 +016.7306 +40 085 -19 00:03:15 +64.1942 +016.9818 +41 086 -18 00:03:20 +65.2273 +017.2015 +41 087 -17 00:03:25 +66.2587 +017.3866 +41 088 -16 00:03:31 +67.2889 +017.5332 +41 089 -15 00:03:36 +68.3186 +017.6367 +41 090 -14 00:03:41 +69.3480 +017.6914 +41 091 -13 00:03:47 +70.3776 +017.6900 +41 092 -12 00:03:52 +71.4078 +017.6238 +41 093 -12 00:03:57 +72.4390 +017.4814 +41 094 -11 00:04:02 +73.4712 +017.2485 +41 094 -10 00:04:08 +74.5046 +016.9067 +40 095 -09 00:04:13 +75.5390 +016.4319 +40 095 -08 00:04:18 +76.5743 +015.7924 +40 096 -07 00:04:24 +77.6096 +014.9453 +40 096 -06 00:04:29 +78.6438 +013.8318 +39 095 -05 00:04:34 +79.6748 +012.3694 +39 095 -04 00:04:39 +80.6993 +010.4398 +39 094 -03 00:04:45 +81.7116 +007.8688 +38 092 -02 00:04:50 +82.7027 +004.3941 +38 089 -01 00:04:55 +83.6570 -000.3847 +37 085 +00 00:05:01 +84.5474 -007.0744 +37 080 +01 00:05:06 +85.3269 -016.5238 +36 071 +02 00:05:11 +85.9176 -029.6056 +35 059 +02 00:05:17 +86.2123 -046.2601 +35 043 +03 00:05:22 +86.1230 -064.1970 +34 025 +04 00:05:27 +85.6531 -079.9938 +33 010 +05 00:05:32 +84.8864 -092.0012 +32 359 +06 00:05:38 +83.9142 -100.5533 +31 351 +07 00:05:43 +82.7990 -106.5693 +31 346 +08 00:05:48 +81.5766 -110.8357 +29 342 +09 00:05:54 +80.2654 -113.8953 +28 339 +10 00:05:59 +78.8729 -116.1027 +27 338 +10 00:06:04 +77.3996 -117.6889 +26 337 +11 00:06:10 +75.8406 -118.8054 +25 336 +12 00:06:15 +74.1856 -119.5530 +23 336 +13 00:06:20 +72.4183 -119.9972 +22 336 +14 00:06:25 +70.5136 -120.1786 +20 336 +15 00:06:31 +68.4319 -120.1160 +18 336 +16 00:06:36 +66.1078 -119.8047 +16 337 +16 00:06:41 +63.4180 -119.2037 +13 337 +17 00:06:47 +60.0730 -118.1812 +10 339 +18 00:06:52 +54.8055 -116.1020 +05 340 +19 Longitude measured positiv to the East.

Occultation Ground Track

 Time[UT] | Lat----CENTR----Lon | Alt hh:mm:ss | +DD.dddd  +DDD.dddd | deg ---------------------------------------------- 00:00:31   +21.3297  -009.4253   +05  052  -61 00:00:36   +24.9682  -005.7239   +10  053  -59 00:00:41   +27.5074  -003.3913   +14  055  -56 00:00:46   +29.6320  -001.5712   +16  056  -54 00:00:52   +31.5197  -000.0428   +18  057  -52 00:00:57   +33.2493  +001.2912   +20  058  -51 00:01:02   +34.8637  +002.4835   +22  059  -49 00:01:08   +36.3899  +003.5668   +23  060  -47 00:01:13   +37.8456  +004.5627   +25  061  -46 00:01:18   +39.2438  +005.4864   +26  062  -44 00:01:23   +40.5938  +006.3491   +27  063  -43 00:01:29   +41.9030  +007.1592   +29  064  -41 00:01:34   +43.1771  +007.9233   +30  065  -40 00:01:39   +44.4206  +008.6465   +31  066  -39 00:01:45   +45.6376  +009.3329   +32  067  -38 00:01:50   +46.8310  +009.9859   +32  068  -36 00:01:55   +48.0037  +010.6081   +33  069  -35 00:02:01   +49.1579  +011.2018   +34  070  -34 00:02:06   +50.2957  +011.7687   +35  071  -33 00:02:11   +51.4188  +012.3102   +36  072  -31 00:02:16   +52.5287  +012.8275   +36  073  -30 00:02:22   +53.6270  +013.3214   +37  075  -29 00:02:27   +54.7147  +013.7925   +37  076  -28 00:02:32   +55.7932  +014.2411   +38  077  -27 00:02:38   +56.8633  +014.6674   +38  078  -26 00:02:43   +57.9261  +015.0711   +39  079  -25 00:02:48   +58.9824  +015.4521   +39  080  -24 00:02:54   +60.0331  +015.8095   +39  081  -23 00:02:59   +61.0790  +016.1426   +40  083  -22 00:03:04   +62.1206  +016.4502   +40  084  -20 00:03:09   +63.1588  +016.7306   +40  085  -19 00:03:15   +64.1942  +016.9818   +41  086  -18 00:03:20   +65.2273  +017.2015   +41  087  -17 00:03:25   +66.2587  +017.3866   +41  088  -16 00:03:31   +67.2889  +017.5332   +41  089  -15 00:03:36   +68.3186  +017.6367   +41  090  -14 00:03:41   +69.3480  +017.6914   +41  091  -13 00:03:47   +70.3776  +017.6900   +41  092  -12 00:03:52   +71.4078  +017.6238   +41  093  -12 00:03:57   +72.4390  +017.4814   +41  094  -11 00:04:02   +73.4712  +017.2485   +41  094  -10 00:04:08   +74.5046  +016.9067   +40  095  -09 00:04:13   +75.5390  +016.4319   +40  095  -08 00:04:18   +76.5743  +015.7924   +40  096  -07 00:04:24   +77.6096  +014.9453   +40  096  -06 00:04:29   +78.6438  +013.8318   +39  095  -05 00:04:34   +79.6748  +012.3694   +39  095  -04 00:04:39   +80.6993  +010.4398   +39  094  -03 00:04:45   +81.7116  +007.8688   +38  092  -02 00:04:50   +82.7027  +004.3941   +38  089  -01 00:04:55   +83.6570  -000.3847   +37  085  +00 00:05:01   +84.5474  -007.0744   +37  080  +01 00:05:06   +85.3269  -016.5238   +36  071  +02 00:05:11   +85.9176  -029.6056   +35  059  +02 00:05:17   +86.2123  -046.2601   +35  043  +03 00:05:22   +86.1230  -064.1970   +34  025  +04 00:05:27   +85.6531  -079.9938   +33  010  +05 00:05:32   +84.8864  -092.0012   +32  359  +06 00:05:38   +83.9142  -100.5533   +31  351  +07 00:05:43   +82.7990  -106.5693   +31  346  +08 00:05:48   +81.5766  -110.8357   +29  342  +09 00:05:54   +80.2654  -113.8953   +28  339  +10 00:05:59   +78.8729  -116.1027   +27  338  +10 00:06:04   +77.3996  -117.6889   +26  337  +11 00:06:10   +75.8406  -118.8054   +25  336  +12 00:06:15   +74.1856  -119.5530   +23  336  +13 00:06:20   +72.4183  -119.9972   +22  336  +14 00:06:25   +70.5136  -120.1786   +20  336  +15 00:06:31   +68.4319  -120.1160   +18  336  +16 00:06:36   +66.1078  -119.8047   +16  337  +16 00:06:41   +63.4180  -119.2037   +13  337  +17 00:06:47   +60.0730  -118.1812   +10  339  +18 00:06:52   +54.8055  -116.1020   +05  340  +19

Longitude measured positiv to the East.

------------------------------------------------------------------------------------------- Azm Sun | Lat----EDGE1----Lon | Lat----EDGE2----Lon deg deg | +DD.dddd +DDD.dddd | +DD.dddd +DDD.dddd --------------------------------------------- +18.2133 -014.0483 +22.9177 -006.6819 +23.8329 -007.9097 +25.8231 -003.8785 +26.7675 -005.1031 +28.1188 -001.8317 +29.0722 -003.0769 +30.1108 -000.1594 +31.0685 -001.4312 +31.9121 +001.2788 +32.8724 -000.0225 +33.5798 +002.5530 +34.5419 +001.2204 +35.1471 +003.7042 +36.1109 +002.3388 +36.6357 +004.7587 +37.6011 +003.3592 +38.0608 +005.7345 +39.0278 +004.2995 +39.4332 +006.6448 +40.4020 +005.1728 +40.7612 +007.4993 +41.7320 +005.9888 +42.0513 +008.3055 +43.0241 +006.7547 +43.3086 +009.0691 +44.2837 +007.4763 +44.5373 +009.7950 +45.5148 +008.1581 +45.7409 +010.4869 +46.7210 +008.8038 +46.9223 +011.1479 +47.9052 +009.4162 +48.0840 +011.7805 +49.0698 +009.9976 +49.2282 +012.3868 +50.2171 +010.5499 +50.3567 +012.9685 +51.3490 +011.0746 +51.4713 +013.5271 +52.4669 +011.5727 +52.5734 +014.0636 +53.5726 +012.0450 +53.6644 +014.5790 +54.6672 +012.4921 +54.7453 +015.0739 +55.7519 +012.9142 +55.8174 +015.5488 +56.8279 +013.3112 +56.8816 +016.0039 +57.8961 +013.6830 +57.9389 +016.4393 +58.9574 +014.0288 +58.9901 +016.8548 +60.0127 +014.3478 +60.0360 +017.2501 +61.0627 +014.6388 +61.0774 +017.6246 +62.1081 +014.9003 +62.1149 +017.9774 +63.1497 +015.1302 +63.1493 +018.3074 +64.1879 +015.3261 +64.1812 +018.6131 +65.2235 +015.4849 +65.2112 +018.8926 +66.2570 +015.6028 +66.2398 +019.1435 +67.2888 +015.6752 +67.2678 +019.3629 +68.3194 +015.6964 +68.2955 +019.5473 +69.3492 +015.6594 +69.3235 +019.6919 +70.3785 +015.5557 +70.3523 +019.7912 +71.4075 +015.3744 +71.3824 +019.8382 +72.4365 +015.1020 +72.4141 +019.8237 +73.4653 +014.7215 +73.4479 +019.7364 +74.4939 +014.2109 +74.4839 +019.5615 +75.5218 +013.5419 +75.5225 +019.2796 +76.5483 +012.6770 +76.5636 +018.8649 +77.5720 +011.5664 +77.6070 +018.2825 +78.5909 +010.1424 +78.6523 +017.4840 +79.6018 +008.3116 +79.6983 +016.4009 +80.5997 +005.9429 +80.7433 +014.9330 +81.5766 +002.8491 +81.7836 +012.9295 +82.5203 -001.2377 +82.8135 +010.1552 +83.4104 -006.6983 +83.8221 +006.2295 +84.2148 -014.0421 +84.7897 +000.5181 +84.8826 -023.8384 +85.6781 -008.0329 +85.3417 -036.3945 +86.4129 -020.9794 +85.5118 -051.0986 +86.8639 -039.5205 +85.3437 -066.0976 +86.8818 -061.4866 +84.8519 -079.3245 +86.4367 -081.0088 +84.0978 -089.8152 +85.6468 -094.9585 +83.1484 -097.6991 +84.6417 -104.1678 +82.0533 -103.5203 +83.5000 -110.2476 +80.8435 -107.8166 +82.2612 -114.3515 +79.5362 -111.0012 +80.9435 -117.1788 +78.1386 -113.3666 +79.5539 -119.1466 +76.6509 -115.1148 +78.0925 -120.5091 +75.0674 -116.3843 +76.5547 -121.4258 +73.3762 -117.2699 +74.9313 -121.9987 +71.5576 -117.8344 +73.2081 -122.2935 +69.5808 -118.1155 +71.3642 -122.3501 +67.3954 -118.1283 +69.3678 -122.1886 +64.9123 -117.8586 +67.1685 -121.8094 +61.9460 -117.2381 +64.6783 -121.1861 +57.9512 -116.0161 +61.7176 -120.2383 +58.6460 -117.3620 +57.7702 -118.7030 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.