Cora»OccDetail

Stellar Occultation by (204281) 2004 HL50 on 2025-10-08 (00:25:28 UT)

Event Details
Occultation UUID [and db] : 89c6e640-ddb8-11f0-547e-c9fefb7b0dd7 [observed] Occultation Date + Time : 2025-10-08 at 00:25:28 UT +/- 0.01 min [1] Object Designation : (204281) 2004 HL50 Star Designation : GDR3 3153404815960335872 Star Coordinates (ICRF) : RA = 07 11 35.0762, DE = +07 03 31.554 [2] Star Magnitudes : G = 10.54 mag, RP = 9.82 mag, BP = 11.11 mag Object Magnitude : V = 20.07 mag Estimated Magnitude Drop : 9.5 mag Estimated Max. Duration : 0.2 sec Speed of the shadow : 18.6 km/s Object Mean Diameter : 4.1 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.5617 arcs/min @ PA = 104 deg Horizontal Parallax : 3.2170 arcs Dynamical Class : MBA Elongation to Moon & Sun : 83° (sunlit = 99%), Sun = 87° Cross-track uncertainty : 1.3 mas = 2 km = 0.63 path-width (1-sig) RUWE and duplicate source : 1.11 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#42 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and db] : 89c6e640-ddb8-11f0-547e-c9fefb7b0dd7 [observed]

 Occultation Date + Time   : 2025-10-08 at 00:25:28 UT +/- 0.01 min  [1]
 Object Designation        : (204281) 2004 HL50
 Star Designation          : GDR3 3153404815960335872
 Star Coordinates (ICRF)   : RA = 07 11 35.0762, DE = +07 03 31.554  [2]
 Star Magnitudes           : G = 10.54 mag, RP = 9.82 mag, BP = 11.11 mag
 Object Magnitude          : V = 20.07 mag
 Estimated Magnitude Drop  : 9.5 mag
 Estimated Max. Duration   : 0.2 sec
 Speed of the shadow       : 18.6 km/s
 Object Mean Diameter      : 4.1 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.5617 arcs/min @ PA = 104 deg
 Horizontal Parallax       : 3.2170 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 83° (sunlit = 99%), Sun = 87°
 Cross-track uncertainty   : 1.3 mas = 2 km = 0.63 path-width (1-sig)
 RUWE and duplicate source : 1.11 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#42
 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

Download KMZ file

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 ---------------------------------------------- 00:20:20 +39.4133 -000.6317 +07 087 -56 00:20:28 +40.0200 +007.5562 +13 092 -53 00:20:35 +40.2790 +013.0456 +18 096 -51 00:20:43 +40.4012 +017.5008 +21 099 -48 00:20:50 +40.4429 +021.3609 +24 102 -46 00:20:58 +40.4295 +024.8208 +27 104 -44 00:21:05 +40.3750 +027.9873 +29 107 -43 00:21:13 +40.2883 +030.9267 +31 109 -41 00:21:20 +40.1753 +033.6834 +33 111 -39 00:21:28 +40.0404 +036.2890 +35 113 -37 00:21:35 +39.8866 +038.7669 +37 115 -36 00:21:43 +39.7165 +041.1350 +39 117 -34 00:21:50 +39.5321 +043.4075 +40 119 -33 00:21:58 +39.3349 +045.5956 +42 121 -31 00:22:05 +39.1262 +047.7088 +43 123 -30 00:22:13 +38.9072 +049.7549 +45 125 -28 00:22:20 +38.6786 +051.7404 +46 127 -27 00:22:28 +38.4415 +053.6710 +48 129 -25 00:22:35 +38.1963 +055.5515 +49 131 -24 00:22:43 +37.9437 +057.3862 +50 134 -22 00:22:50 +37.6842 +059.1788 +51 136 -21 00:22:58 +37.4183 +060.9328 +52 138 -20 00:23:05 +37.1464 +062.6509 +54 140 -18 00:23:13 +36.8688 +064.3360 +55 142 -17 00:23:20 +36.5859 +065.9905 +56 145 -16 00:23:28 +36.2978 +067.6165 +57 147 -14 00:23:35 +36.0050 +069.2162 +58 150 -13 00:23:43 +35.7075 +070.7913 +59 152 -12 00:23:50 +35.4057 +072.3436 +59 155 -10 00:23:58 +35.0996 +073.8748 +60 157 -09 00:24:05 +34.7895 +075.3862 +61 160 -08 00:24:13 +34.4755 +076.8794 +62 163 -07 00:24:20 +34.1578 +078.3556 +62 166 -05 00:24:28 +33.8364 +079.8162 +63 169 -04 00:24:35 +33.5114 +081.2622 +63 172 -03 00:24:43 +33.1831 +082.6950 +64 175 -02 00:24:50 +32.8513 +084.1154 +64 178 +00 00:24:58 +32.5163 +085.5247 +65 182 +01 00:25:05 +32.1780 +086.9238 +65 185 +02 00:25:13 +31.8365 +088.3137 +65 189 +03 00:25:20 +31.4919 +089.6954 +65 192 +05 00:25:28 +31.1442 +091.0699 +65 195 +06 00:25:35 +30.7934 +092.4380 +65 199 +07 00:25:43 +30.4395 +093.8007 +65 202 +08 00:25:50 +30.0826 +095.1590 +65 206 +10 00:25:58 +29.7227 +096.5136 +65 209 +11 00:26:05 +29.3597 +097.8657 +64 212 +12 00:26:13 +28.9936 +099.2160 +64 215 +13 00:26:20 +28.6244 +100.5656 +64 218 +15 00:26:28 +28.2521 +101.9154 +63 221 +16 00:26:35 +27.8766 +103.2663 +63 224 +17 00:26:43 +27.4979 +104.6194 +62 227 +18 00:26:50 +27.1159 +105.9758 +61 230 +20 00:26:58 +26.7305 +107.3365 +61 232 +21 00:27:05 +26.3418 +108.7026 +60 235 +22 00:27:13 +25.9495 +110.0755 +59 237 +24 00:27:20 +25.5535 +111.4562 +58 239 +25 00:27:28 +25.1538 +112.8462 +57 242 +26 00:27:35 +24.7502 +114.2470 +56 244 +28 00:27:43 +24.3425 +115.6600 +55 246 +29 00:27:50 +23.9306 +117.0870 +54 247 +30 00:27:58 +23.5143 +118.5298 +53 249 +32 00:28:05 +23.0933 +119.9904 +52 251 +33 00:28:13 +22.6674 +121.4710 +51 253 +35 00:28:20 +22.2362 +122.9741 +49 254 +36 00:28:28 +21.7995 +124.5025 +48 256 +38 00:28:35 +21.3568 +126.0593 +47 257 +39 00:28:43 +20.9078 +127.6481 +45 258 +41 00:28:50 +20.4518 +129.2731 +44 260 +42 00:28:58 +19.9882 +130.9389 +43 261 +44 00:29:05 +19.5164 +132.6513 +41 262 +46 00:29:13 +19.0355 +134.4171 +39 263 +47 00:29:20 +18.5443 +136.2444 +38 265 +49 00:29:28 +18.0416 +138.1434 +36 266 +51 00:29:35 +17.5257 +140.1268 +34 267 +53 00:29:43 +16.9944 +142.2111 +32 268 +55 00:29:50 +16.4449 +144.4182 +30 269 +57 00:29:58 +15.8733 +146.7786 +28 270 +59 00:30:05 +15.2738 +149.3365 +25 271 +61 00:30:13 +14.6375 +152.1609 +22 272 +63 00:30:20 +13.9493 +155.3711 +19 273 +66 00:30:28 +13.1783 +159.2093 +15 274 +68 00:30:35 +12.2375 +164.3636 +10 275 +71 Longitude measured positiv to the East.

Occultation Ground Track

 Time[UT] | Lat----CENTR----Lon | Alt hh:mm:ss | +DD.dddd  +DDD.dddd | deg ---------------------------------------------- 00:20:20   +39.4133  -000.6317   +07  087  -56 00:20:28   +40.0200  +007.5562   +13  092  -53 00:20:35   +40.2790  +013.0456   +18  096  -51 00:20:43   +40.4012  +017.5008   +21  099  -48 00:20:50   +40.4429  +021.3609   +24  102  -46 00:20:58   +40.4295  +024.8208   +27  104  -44 00:21:05   +40.3750  +027.9873   +29  107  -43 00:21:13   +40.2883  +030.9267   +31  109  -41 00:21:20   +40.1753  +033.6834   +33  111  -39 00:21:28   +40.0404  +036.2890   +35  113  -37 00:21:35   +39.8866  +038.7669   +37  115  -36 00:21:43   +39.7165  +041.1350   +39  117  -34 00:21:50   +39.5321  +043.4075   +40  119  -33 00:21:58   +39.3349  +045.5956   +42  121  -31 00:22:05   +39.1262  +047.7088   +43  123  -30 00:22:13   +38.9072  +049.7549   +45  125  -28 00:22:20   +38.6786  +051.7404   +46  127  -27 00:22:28   +38.4415  +053.6710   +48  129  -25 00:22:35   +38.1963  +055.5515   +49  131  -24 00:22:43   +37.9437  +057.3862   +50  134  -22 00:22:50   +37.6842  +059.1788   +51  136  -21 00:22:58   +37.4183  +060.9328   +52  138  -20 00:23:05   +37.1464  +062.6509   +54  140  -18 00:23:13   +36.8688  +064.3360   +55  142  -17 00:23:20   +36.5859  +065.9905   +56  145  -16 00:23:28   +36.2978  +067.6165   +57  147  -14 00:23:35   +36.0050  +069.2162   +58  150  -13 00:23:43   +35.7075  +070.7913   +59  152  -12 00:23:50   +35.4057  +072.3436   +59  155  -10 00:23:58   +35.0996  +073.8748   +60  157  -09 00:24:05   +34.7895  +075.3862   +61  160  -08 00:24:13   +34.4755  +076.8794   +62  163  -07 00:24:20   +34.1578  +078.3556   +62  166  -05 00:24:28   +33.8364  +079.8162   +63  169  -04 00:24:35   +33.5114  +081.2622   +63  172  -03 00:24:43   +33.1831  +082.6950   +64  175  -02 00:24:50   +32.8513  +084.1154   +64  178  +00 00:24:58   +32.5163  +085.5247   +65  182  +01 00:25:05   +32.1780  +086.9238   +65  185  +02 00:25:13   +31.8365  +088.3137   +65  189  +03 00:25:20   +31.4919  +089.6954   +65  192  +05 00:25:28   +31.1442  +091.0699   +65  195  +06 00:25:35   +30.7934  +092.4380   +65  199  +07 00:25:43   +30.4395  +093.8007   +65  202  +08 00:25:50   +30.0826  +095.1590   +65  206  +10 00:25:58   +29.7227  +096.5136   +65  209  +11 00:26:05   +29.3597  +097.8657   +64  212  +12 00:26:13   +28.9936  +099.2160   +64  215  +13 00:26:20   +28.6244  +100.5656   +64  218  +15 00:26:28   +28.2521  +101.9154   +63  221  +16 00:26:35   +27.8766  +103.2663   +63  224  +17 00:26:43   +27.4979  +104.6194   +62  227  +18 00:26:50   +27.1159  +105.9758   +61  230  +20 00:26:58   +26.7305  +107.3365   +61  232  +21 00:27:05   +26.3418  +108.7026   +60  235  +22 00:27:13   +25.9495  +110.0755   +59  237  +24 00:27:20   +25.5535  +111.4562   +58  239  +25 00:27:28   +25.1538  +112.8462   +57  242  +26 00:27:35   +24.7502  +114.2470   +56  244  +28 00:27:43   +24.3425  +115.6600   +55  246  +29 00:27:50   +23.9306  +117.0870   +54  247  +30 00:27:58   +23.5143  +118.5298   +53  249  +32 00:28:05   +23.0933  +119.9904   +52  251  +33 00:28:13   +22.6674  +121.4710   +51  253  +35 00:28:20   +22.2362  +122.9741   +49  254  +36 00:28:28   +21.7995  +124.5025   +48  256  +38 00:28:35   +21.3568  +126.0593   +47  257  +39 00:28:43   +20.9078  +127.6481   +45  258  +41 00:28:50   +20.4518  +129.2731   +44  260  +42 00:28:58   +19.9882  +130.9389   +43  261  +44 00:29:05   +19.5164  +132.6513   +41  262  +46 00:29:13   +19.0355  +134.4171   +39  263  +47 00:29:20   +18.5443  +136.2444   +38  265  +49 00:29:28   +18.0416  +138.1434   +36  266  +51 00:29:35   +17.5257  +140.1268   +34  267  +53 00:29:43   +16.9944  +142.2111   +32  268  +55 00:29:50   +16.4449  +144.4182   +30  269  +57 00:29:58   +15.8733  +146.7786   +28  270  +59 00:30:05   +15.2738  +149.3365   +25  271  +61 00:30:13   +14.6375  +152.1609   +22  272  +63 00:30:20   +13.9493  +155.3711   +19  273  +66 00:30:28   +13.1783  +159.2093   +15  274  +68 00:30:35   +12.2375  +164.3636   +10  275  +71

Longitude measured positiv to the East.

------------------------------------------------------------------------------------------- Azm Sun | Lat----EDGE1----Lon | Lat----EDGE2----Lon deg deg | +DD.dddd +DDD.dddd | +DD.dddd +DDD.dddd --------------------------------------------- +39.4263 -000.7138 +39.4002 -000.5504 +40.0379 +007.5127 +40.0022 +007.5995 +40.2982 +013.0131 +40.2599 +013.0779 +40.4210 +017.4744 +40.3814 +017.5271 +40.4631 +021.3386 +40.4227 +021.3832 +40.4500 +024.8016 +40.4090 +024.8400 +40.3957 +027.9705 +40.3543 +028.0041 +40.3091 +030.9119 +40.2675 +030.9414 +40.1962 +033.6704 +40.1544 +033.6964 +40.0613 +036.2775 +40.0194 +036.3005 +39.9076 +038.7567 +39.8656 +038.7771 +39.7376 +041.1260 +39.6955 +041.1440 +39.5532 +043.3996 +39.5110 +043.4153 +39.3560 +045.5887 +39.3138 +045.6025 +39.1473 +047.7029 +39.1052 +047.7148 +38.9282 +049.7498 +38.8861 +049.7600 +38.6997 +051.7361 +38.6576 +051.7447 +38.4625 +053.6674 +38.4205 +053.6746 +38.2172 +055.5486 +38.1753 +055.5544 +37.9646 +057.3840 +37.9228 +057.3884 +37.7051 +059.1772 +37.6634 +059.1804 +37.4392 +060.9317 +37.3975 +060.9338 +37.1672 +062.6504 +37.1256 +062.6514 +36.8895 +064.3361 +36.8481 +064.3360 +36.6065 +065.9910 +36.5652 +065.9899 +36.3184 +067.6176 +36.2772 +067.6155 +36.0255 +069.2177 +35.9844 +069.2147 +35.7280 +070.7932 +35.6870 +070.7894 +35.4261 +072.3460 +35.3853 +072.3413 +35.1200 +073.8775 +35.0793 +073.8721 +34.8098 +075.3893 +34.7692 +075.3831 +34.4958 +076.8829 +34.4553 +076.8759 +34.1779 +078.3595 +34.1376 +078.3518 +33.8565 +079.8204 +33.8163 +079.8120 +33.5315 +081.2667 +33.4914 +081.2577 +33.2030 +082.6998 +33.1631 +082.6901 +32.8712 +084.1205 +32.8314 +084.1103 +32.5361 +085.5301 +32.4964 +085.5193 +32.1977 +086.9295 +32.1582 +086.9181 +31.8562 +088.3197 +31.8168 +088.3077 +31.5115 +089.7017 +31.4723 +089.6892 +31.1637 +091.0764 +31.1247 +091.0633 +30.8129 +092.4448 +30.7739 +092.4312 +30.4589 +093.8077 +30.4201 +093.7937 +30.1020 +095.1662 +30.0633 +095.1517 +29.7419 +096.5212 +29.7034 +096.5061 +29.3789 +097.8735 +29.3405 +097.8579 +29.0127 +099.2240 +28.9745 +099.2080 +28.6434 +100.5738 +28.6053 +100.5574 +28.2711 +101.9238 +28.2331 +101.9069 +27.8955 +103.2750 +27.8577 +103.2576 +27.5167 +104.6283 +27.4790 +104.6105 +27.1347 +105.9849 +27.0971 +105.9667 +26.7492 +107.3458 +26.7118 +107.3271 +26.3604 +108.7122 +26.3231 +108.6931 +25.9680 +110.0853 +25.9309 +110.0657 +25.5720 +111.4663 +25.5350 +111.4462 +25.1722 +112.8565 +25.1354 +112.8360 +24.7685 +114.2575 +24.7319 +114.2365 +24.3608 +115.6708 +24.3243 +115.6493 +23.9488 +117.0980 +23.9124 +117.0760 +23.5324 +118.5410 +23.4962 +118.5186 +23.1113 +120.0019 +23.0753 +119.9789 +22.6853 +121.4828 +22.6494 +121.4593 +22.2541 +122.9862 +22.2183 +122.9621 +21.8173 +124.5149 +21.7817 +124.4902 +21.3746 +126.0720 +21.3391 +126.0467 +20.9254 +127.6611 +20.8901 +127.6352 +20.4693 +129.2864 +20.4342 +129.2597 +20.0057 +130.9526 +19.9708 +130.9252 +19.5338 +132.6655 +19.4991 +132.6372 +19.0527 +134.4317 +19.0182 +134.4025 +18.5615 +136.2595 +18.5271 +136.2293 +18.0586 +138.1591 +18.0245 +138.1277 +17.5426 +140.1432 +17.5087 +140.1104 +17.0111 +142.2283 +16.9776 +142.1938 +16.4615 +144.4364 +16.4283 +144.4000 +15.8897 +146.7980 +15.8569 +146.7592 +15.2899 +149.3574 +15.2576 +149.3155 +14.6534 +152.1840 +14.6217 +152.1378 +13.9647 +155.3974 +13.9339 +155.3447 +13.1929 +159.2413 +13.1636 +159.1773 +12.2503 +164.4101 +12.2247 +164.3173 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.