Cora»OccDetail

Stellar Occultation by (209) Dido on 2025-09-29 (02:28:36 UT)

Event Details
Occultation UUID [and db] : 79120370-ddb8-11f0-547e-2e5afa57d1c4 [observed] Occultation Date + Time : 2025-09-29 at 02:28:36 UT +/- 0.01 min [1] Object Designation : (209) Dido Star Designation : GDR3 3444048375318086656 Star Coordinates (ICRF) : RA = 05 54 58.9784, DE = +30 48 46.723 [2] Star Magnitudes : G = 14.67 mag, RP = 14.03 mag, BP = 15.13 mag Object Magnitude : V = 14.23 mag Estimated Magnitude Drop : 0.6 mag Estimated Max. Duration : 13.6 sec Speed of the shadow : 11.7 km/s Object Mean Diameter : 159.9 km (src: astorb) => apparent = 72 mas Apparent Motion : 0.3183 arcs/min @ PA = 70 deg Horizontal Parallax : 2.8880 arcs Dynamical Class : MBA Elongation to Moon & Sun : 177° (sunlit = 41%), Sun = 97° Cross-track uncertainty : 0.4 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.02 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#138 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] : 79120370-ddb8-11f0-547e-2e5afa57d1c4 [observed]

 Occultation Date + Time   : 2025-09-29 at 02:28:36 UT +/- 0.01 min  [1]
 Object Designation        : (209) Dido
 Star Designation          : GDR3 3444048375318086656
 Star Coordinates (ICRF)   : RA = 05 54 58.9784, DE = +30 48 46.723  [2]
 Star Magnitudes           : G = 14.67 mag, RP = 14.03 mag, BP = 15.13 mag
 Object Magnitude          : V = 14.23 mag
 Estimated Magnitude Drop  : 0.6 mag
 Estimated Max. Duration   : 13.6 sec
 Speed of the shadow       : 11.7 km/s
 Object Mean Diameter      : 159.9 km  (src: astorb) => apparent = 72 mas
 Apparent Motion           : 0.3183 arcs/min @ PA = 70 deg
 Horizontal Parallax       : 2.8880 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 177° (sunlit = 41%), Sun = 97°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.01 path-width (1-sig)
 RUWE and duplicate source : 1.02 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#138
 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

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

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Occultation Ground Track
Time[UT] \| Lat----CENTR----Lon \| Alt hh:mm:ss \| +DD.dddd +DDD.dddd \| deg ---------------------------------------------- 02:20:43 +12.0005 -042.3433 +08 060 -79 02:20:58 +16.1066 -036.5144 +15 062 -76 02:21:13 +18.9754 -032.6658 +20 063 -73 02:21:28 +21.3650 -029.5562 +23 065 -69 02:21:43 +23.4772 -026.8578 +27 066 -66 02:21:58 +25.4021 -024.4252 +29 067 -64 02:22:13 +27.1893 -022.1785 +32 069 -61 02:22:28 +28.8695 -020.0679 +34 071 -59 02:22:43 +30.4634 -018.0601 +37 072 -56 02:22:58 +31.9855 -016.1308 +39 074 -54 02:23:13 +33.4467 -014.2621 +41 076 -52 02:23:28 +34.8551 -012.4397 +42 078 -50 02:23:43 +36.2172 -010.6521 +44 080 -48 02:23:58 +37.5380 -008.8897 +46 082 -46 02:24:13 +38.8215 -007.1444 +47 084 -44 02:24:29 +40.0712 -005.4089 +49 087 -42 02:24:44 +41.2897 -003.6767 +50 089 -40 02:24:59 +42.4793 -001.9420 +52 092 -38 02:25:14 +43.6418 -000.1992 +53 095 -37 02:25:29 +44.7786 +001.5571 +54 098 -35 02:25:44 +45.8909 +003.3318 +55 101 -33 02:25:59 +46.9797 +005.1300 +56 104 -31 02:26:14 +48.0456 +006.9566 +57 108 -30 02:26:29 +49.0891 +008.8167 +58 111 -28 02:26:44 +50.1105 +010.7153 +59 115 -27 02:26:59 +51.1097 +012.6574 +59 119 -25 02:27:14 +52.0867 +014.6483 +60 123 -23 02:27:29 +53.0411 +016.6935 +60 128 -22 02:27:44 +53.9724 +018.7986 +61 132 -20 02:27:59 +54.8797 +020.9693 +61 137 -19 02:28:14 +55.7623 +023.2115 +61 142 -17 02:28:29 +56.6187 +025.5313 +61 146 -16 02:28:44 +57.4477 +027.9351 +61 151 -14 02:28:59 +58.2475 +030.4290 +61 156 -12 02:29:14 +59.0160 +033.0196 +61 162 -11 02:29:29 +59.7511 +035.7129 +61 167 -09 02:29:44 +60.4502 +038.5152 +60 172 -08 02:29:59 +61.1104 +041.4321 +60 177 -06 02:30:14 +61.7284 +044.4688 +59 182 -05 02:30:29 +62.3006 +047.6296 +58 188 -03 02:30:44 +62.8233 +050.9177 +58 193 -02 02:30:59 +63.2922 +054.3353 +57 198 +00 02:31:14 +63.7027 +057.8824 +56 203 +01 02:31:29 +64.0500 +061.5574 +55 209 +03 02:31:44 +64.3292 +065.3566 +54 214 +04 02:32:00 +64.5350 +069.2737 +52 219 +06 02:32:15 +64.6621 +073.3002 +51 224 +08 02:32:30 +64.7051 +077.4253 +50 230 +09 02:32:45 +64.6585 +081.6364 +48 235 +11 02:33:00 +64.5168 +085.9193 +47 240 +13 02:33:15 +64.2745 +090.2595 +45 245 +14 02:33:30 +63.9259 +094.6423 +44 250 +16 02:33:45 +63.4648 +099.0547 +42 255 +18 02:34:00 +62.8845 +103.4860 +40 260 +19 02:34:15 +62.1770 +107.9294 +38 265 +21 02:34:30 +61.3326 +112.3833 +36 269 +23 02:34:45 +60.3382 +116.8531 +34 274 +25 02:35:00 +59.1760 +121.3542 +31 279 +27 02:35:15 +57.8196 +125.9162 +29 283 +29 02:35:30 +56.2282 +130.5911 +26 287 +31 02:35:45 +54.3326 +135.4723 +23 292 +33 02:36:00 +51.9995 +140.7441 +19 296 +35 02:36:15 +48.9027 +146.8633 +14 301 +38 02:36:30 +43.3619 +156.2207 +05 308 +41 Longitude measured positiv to the East.

Occultation Ground Track

 Time[UT] | Lat----CENTR----Lon | Alt hh:mm:ss | +DD.dddd  +DDD.dddd | deg ---------------------------------------------- 02:20:43   +12.0005  -042.3433   +08  060  -79 02:20:58   +16.1066  -036.5144   +15  062  -76 02:21:13   +18.9754  -032.6658   +20  063  -73 02:21:28   +21.3650  -029.5562   +23  065  -69 02:21:43   +23.4772  -026.8578   +27  066  -66 02:21:58   +25.4021  -024.4252   +29  067  -64 02:22:13   +27.1893  -022.1785   +32  069  -61 02:22:28   +28.8695  -020.0679   +34  071  -59 02:22:43   +30.4634  -018.0601   +37  072  -56 02:22:58   +31.9855  -016.1308   +39  074  -54 02:23:13   +33.4467  -014.2621   +41  076  -52 02:23:28   +34.8551  -012.4397   +42  078  -50 02:23:43   +36.2172  -010.6521   +44  080  -48 02:23:58   +37.5380  -008.8897   +46  082  -46 02:24:13   +38.8215  -007.1444   +47  084  -44 02:24:29   +40.0712  -005.4089   +49  087  -42 02:24:44   +41.2897  -003.6767   +50  089  -40 02:24:59   +42.4793  -001.9420   +52  092  -38 02:25:14   +43.6418  -000.1992   +53  095  -37 02:25:29   +44.7786  +001.5571   +54  098  -35 02:25:44   +45.8909  +003.3318   +55  101  -33 02:25:59   +46.9797  +005.1300   +56  104  -31 02:26:14   +48.0456  +006.9566   +57  108  -30 02:26:29   +49.0891  +008.8167   +58  111  -28 02:26:44   +50.1105  +010.7153   +59  115  -27 02:26:59   +51.1097  +012.6574   +59  119  -25 02:27:14   +52.0867  +014.6483   +60  123  -23 02:27:29   +53.0411  +016.6935   +60  128  -22 02:27:44   +53.9724  +018.7986   +61  132  -20 02:27:59   +54.8797  +020.9693   +61  137  -19 02:28:14   +55.7623  +023.2115   +61  142  -17 02:28:29   +56.6187  +025.5313   +61  146  -16 02:28:44   +57.4477  +027.9351   +61  151  -14 02:28:59   +58.2475  +030.4290   +61  156  -12 02:29:14   +59.0160  +033.0196   +61  162  -11 02:29:29   +59.7511  +035.7129   +61  167  -09 02:29:44   +60.4502  +038.5152   +60  172  -08 02:29:59   +61.1104  +041.4321   +60  177  -06 02:30:14   +61.7284  +044.4688   +59  182  -05 02:30:29   +62.3006  +047.6296   +58  188  -03 02:30:44   +62.8233  +050.9177   +58  193  -02 02:30:59   +63.2922  +054.3353   +57  198  +00 02:31:14   +63.7027  +057.8824   +56  203  +01 02:31:29   +64.0500  +061.5574   +55  209  +03 02:31:44   +64.3292  +065.3566   +54  214  +04 02:32:00   +64.5350  +069.2737   +52  219  +06 02:32:15   +64.6621  +073.3002   +51  224  +08 02:32:30   +64.7051  +077.4253   +50  230  +09 02:32:45   +64.6585  +081.6364   +48  235  +11 02:33:00   +64.5168  +085.9193   +47  240  +13 02:33:15   +64.2745  +090.2595   +45  245  +14 02:33:30   +63.9259  +094.6423   +44  250  +16 02:33:45   +63.4648  +099.0547   +42  255  +18 02:34:00   +62.8845  +103.4860   +40  260  +19 02:34:15   +62.1770  +107.9294   +38  265  +21 02:34:30   +61.3326  +112.3833   +36  269  +23 02:34:45   +60.3382  +116.8531   +34  274  +25 02:35:00   +59.1760  +121.3542   +31  279  +27 02:35:15   +57.8196  +125.9162   +29  283  +29 02:35:30   +56.2282  +130.5911   +26  287  +31 02:35:45   +54.3326  +135.4723   +23  292  +33 02:36:00   +51.9995  +140.7441   +19  296  +35 02:36:15   +48.9027  +146.8633   +14  301  +38 02:36:30   +43.3619  +156.2207   +05  308  +41

Longitude measured positiv to the East.

------------------------------------------------------------------------------------------- Azm Sun | Lat----EDGE1----Lon | Lat----EDGE2----Lon deg deg | +DD.dddd +DDD.dddd | +DD.dddd +DDD.dddd --------------------------------------------- +10.9451 -045.4519 +12.5405 -040.0819 +15.9541 -038.1604 +16.1749 -035.0056 +19.0110 -034.0261 +18.8953 -031.3792 +21.4956 -030.7822 +21.2035 -028.3825 +23.6689 -028.0044 +23.2613 -025.7533 +25.6383 -025.5195 +25.1459 -023.3673 +27.4604 -023.2359 +26.9009 -021.1537 +29.1694 -021.0985 +28.5543 -019.0677 +30.7880 -019.0704 +30.1249 -017.0785 +32.3321 -017.1257 +31.6264 -015.1637 +33.8131 -015.2450 +33.0687 -013.3062 +35.2398 -013.4133 +34.4597 -011.4927 +36.6190 -011.6184 +35.8053 -009.7122 +37.9561 -009.8502 +37.1104 -007.9556 +39.2554 -008.1002 +38.3789 -006.2151 +40.5203 -006.3609 +39.6139 -004.4836 +41.7537 -004.6255 +40.8181 -002.7550 +42.9579 -002.8880 +41.9935 -001.0236 +44.1348 -001.1424 +43.1419 +000.7161 +45.2860 +000.6166 +44.2648 +002.4690 +46.4127 +002.3943 +45.3632 +004.2401 +47.5159 +004.1960 +46.4380 +006.0342 +48.5963 +006.0268 +47.4899 +007.8560 +49.6544 +007.8920 +48.5193 +009.7103 +50.6905 +009.7968 +49.5264 +011.6018 +51.7046 +011.7466 +50.5113 +013.5355 +52.6966 +013.7470 +51.4738 +015.5164 +53.6662 +015.8037 +52.4136 +017.5494 +54.6128 +017.9228 +53.3301 +019.6399 +55.5357 +020.1104 +54.2226 +021.7932 +56.4338 +022.3729 +55.0902 +024.0148 +57.3059 +024.7169 +55.9317 +026.3105 +58.1504 +027.1493 +56.7457 +028.6858 +58.9657 +029.6770 +57.5307 +031.1466 +59.7497 +032.3069 +58.2846 +033.6987 +60.4998 +035.0461 +59.0055 +036.3477 +61.2135 +037.9014 +59.6907 +039.0992 +61.8875 +040.8790 +60.3377 +041.9581 +62.5186 +043.9849 +60.9434 +044.9292 +63.1027 +047.2240 +61.5044 +048.0162 +63.6359 +050.5999 +62.0172 +051.2222 +64.1135 +054.1148 +62.4778 +054.5488 +64.5306 +057.7690 +62.8820 +057.9964 +64.8821 +061.5604 +63.2253 +061.5637 +65.1626 +065.4844 +63.5030 +065.2474 +65.3665 +069.5338 +63.7103 +069.0423 +65.4880 +073.6982 +63.8422 +072.9413 +65.5215 +077.9650 +63.8936 +076.9353 +65.4612 +082.3191 +63.8592 +081.0135 +65.3014 +086.7440 +63.7339 +085.1639 +65.0364 +091.2226 +63.5122 +089.3741 +64.6602 +095.7379 +63.1885 +093.6315 +64.1668 +100.2750 +62.7569 +097.9247 +63.5492 +104.8220 +62.2108 +102.2444 +62.7992 +109.3712 +61.5424 +106.5844 +61.9066 +113.9213 +60.7424 +110.9431 +60.8576 +118.4790 +59.7984 +115.3253 +59.6329 +123.0622 +58.6938 +119.7441 +58.2034 +127.7050 +57.4046 +124.2255 +56.5230 +132.4675 +55.8941 +128.8150 +54.5113 +137.4593 +54.1020 +133.5932 +52.0060 +142.9050 +51.9168 +138.7140 +48.5671 +149.4188 +49.0854 +144.5321 +49.2599 +149.0697 +44.6594 +152.3984 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.