Cora»OccDetail

Stellar Occultation by (9031) 1989 WG4 on 2024-07-25 (21:00:50 UT)

Event Details
Occultation UUID [and db] : c8651610-c351-11ef-5276-2a00ffdfe8c4 [observed] Occultation Date + Time : 2024-07-25 at 21:00:50 UT +/- 0.0 min [1] Object Designation : (9031) 1989 WG4 Star Designation : GDR3 4065545025177573376 Star Coordinates (ICRF) : RA = 18 17 42.3157, DE = -23 50 47.442 [2] Star Magnitudes : G = 14.37 mag, RP = 13.26 mag, BP = 15.57 mag Object Magnitude : V = 17.63 mag Estimated Magnitude Drop : 3.3 mag Estimated Max. Duration : 0.6 sec Object Mean Diameter : 4.6 km (src: astorb) Orbital Class : MBA Speed of the shadow : 7.7 km/s Elongation to Moon & Sun : 90° (sunlit = 75%), Sun = 151° Cross-track uncertainty : 0.4 mas = 0 km = 0.09 path-width (1-sig) RUWE and duplicate source : 1.12 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#60 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and db] : c8651610-c351-11ef-5276-2a00ffdfe8c4 [observed]

 Occultation Date + Time   : 2024-07-25 at 21:00:50 UT +/- 0.0 min  [1]
 Object Designation        : (9031) 1989 WG4
 Star Designation          : GDR3 4065545025177573376
 Star Coordinates (ICRF)   : RA = 18 17 42.3157, DE = -23 50 47.442  [2]
 Star Magnitudes           : G = 14.37 mag, RP = 13.26 mag, BP = 15.57 mag
 Object Magnitude          : V = 17.63 mag
 Estimated Magnitude Drop  : 3.3 mag
 Estimated Max. Duration   : 0.6 sec
 Object Mean Diameter      : 4.6 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 7.7 km/s
 Elongation to Moon & Sun  : 90° (sunlit = 75%), Sun = 151°
 Cross-track uncertainty   : 0.4 mas = 0 km = 0.09 path-width (1-sig)
 RUWE and duplicate source : 1.12 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#60

 
 [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

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 ---------------------------------------------- 20:55:15 +61.2221 +033.3469 +04 195 -09 20:55:23 +59.0986 +031.2235 +06 194 -10 20:55:30 +57.6041 +029.6081 +08 192 -12 20:55:38 +56.3941 +028.2246 +09 191 -12 20:55:45 +55.3568 +026.9823 +10 190 -13 20:55:53 +54.4389 +025.8375 +11 189 -14 20:56:00 +53.6099 +024.7653 +12 188 -14 20:56:08 +52.8508 +023.7496 +13 187 -15 20:56:15 +52.1484 +022.7794 +14 186 -15 20:56:23 +51.4933 +021.8469 +15 185 -16 20:56:30 +50.8786 +020.9460 +15 184 -16 20:56:38 +50.2988 +020.0723 +16 184 -16 20:56:45 +49.7497 +019.2220 +16 183 -16 20:56:53 +49.2279 +018.3922 +17 182 -17 20:57:00 +48.7306 +017.5804 +17 181 -17 20:57:08 +48.2555 +016.7846 +18 181 -17 20:57:15 +47.8006 +016.0031 +18 180 -17 20:57:23 +47.3643 +015.2343 +19 179 -17 20:57:30 +46.9451 +014.4769 +19 179 -17 20:57:38 +46.5418 +013.7298 +20 178 -17 20:57:45 +46.1534 +012.9921 +20 177 -18 20:57:53 +45.7789 +012.2628 +20 176 -18 20:58:00 +45.4175 +011.5411 +21 176 -18 20:58:08 +45.0684 +010.8264 +21 175 -18 20:58:15 +44.7310 +010.1179 +21 174 -18 20:58:23 +44.4047 +009.4151 +22 174 -18 20:58:30 +44.0890 +008.7174 +22 173 -17 20:58:38 +43.7834 +008.0243 +22 172 -17 20:58:45 +43.4875 +007.3354 +22 172 -17 20:58:53 +43.2010 +006.6502 +22 171 -17 20:59:00 +42.9234 +005.9683 +23 170 -17 20:59:08 +42.6544 +005.2894 +23 170 -17 20:59:15 +42.3939 +004.6130 +23 169 -17 20:59:23 +42.1415 +003.9388 +23 168 -17 20:59:30 +41.8969 +003.2665 +23 168 -17 20:59:38 +41.6600 +002.5958 +23 167 -17 20:59:45 +41.4307 +001.9264 +24 167 -16 20:59:53 +41.2086 +001.2580 +24 166 -16 21:00:00 +40.9937 +000.5902 +24 165 -16 21:00:08 +40.7858 -000.0771 +24 165 -16 21:00:15 +40.5848 -000.7442 +24 164 -16 21:00:23 +40.3906 -001.4115 +24 163 -15 21:00:30 +40.2031 -002.0792 +24 163 -15 21:00:38 +40.0222 -002.7475 +24 162 -15 21:00:45 +39.8479 -003.4168 +24 161 -15 21:00:53 +39.6800 -004.0872 +24 161 -14 21:01:00 +39.5186 -004.7590 +24 160 -14 21:01:08 +39.3635 -005.4326 +24 159 -14 21:01:15 +39.2149 -006.1082 +24 159 -14 21:01:23 +39.0725 -006.7860 +24 158 -13 21:01:30 +38.9366 -007.4663 +24 158 -13 21:01:38 +38.8070 -008.1495 +24 157 -13 21:01:45 +38.6838 -008.8358 +24 156 -12 21:01:53 +38.5670 -009.5256 +24 156 -12 21:02:00 +38.4567 -010.2191 +23 155 -12 21:02:08 +38.3528 -010.9167 +23 154 -11 21:02:15 +38.2556 -011.6188 +23 154 -11 21:02:23 +38.1651 -012.3257 +23 153 -11 21:02:30 +38.0813 -013.0379 +23 152 -10 21:02:38 +38.0045 -013.7557 +23 152 -10 21:02:45 +37.9346 -014.4796 +22 151 -09 21:02:53 +37.8720 -015.2100 +22 151 -09 21:03:00 +37.8167 -015.9476 +22 150 -09 21:03:08 +37.7690 -016.6927 +22 149 -08 21:03:15 +37.7291 -017.4461 +21 149 -08 21:03:23 +37.6973 -018.2084 +21 148 -07 21:03:30 +37.6737 -018.9802 +21 147 -07 21:03:38 +37.6589 -019.7624 +21 147 -06 21:03:45 +37.6531 -020.5559 +20 146 -06 21:03:53 +37.6567 -021.3615 +20 145 -05 21:04:00 +37.6703 -022.1804 +20 145 -05 21:04:08 +37.6944 -023.0137 +19 144 -04 21:04:15 +37.7296 -023.8628 +19 143 -03 21:04:23 +37.7767 -024.7294 +18 143 -03 21:04:30 +37.8364 -025.6150 +18 142 -02 21:04:38 +37.9099 -026.5219 +17 141 -01 21:04:45 +37.9981 -027.4523 +17 141 -01 21:04:53 +38.1027 -028.4093 +16 140 +00 21:05:00 +38.2251 -029.3963 +16 139 +01 21:05:08 +38.3676 -030.4174 +15 138 +01 21:05:15 +38.5326 -031.4778 +14 138 +02 21:05:23 +38.7234 -032.5843 +14 137 +03 21:05:30 +38.9443 -033.7453 +13 136 +04 21:05:38 +39.2009 -034.9724 +12 135 +05 21:05:45 +39.5013 -036.2817 +11 134 +06 21:05:53 +39.8570 -037.6969 +10 133 +07 21:06:00 +40.2866 -039.2554 +09 132 +08 21:06:08 +40.8227 -041.0232 +08 131 +10 21:06:15 +41.5343 -043.1403 +06 130 +11 21:06:23 +42.6375 -046.0457 +04 128 +14 Longitude measured positiv to the East.

Occultation Ground Track

 Time[UT] | Lat----CENTR----Lon | Alt hh:mm:ss | +DD.dddd  +DDD.dddd | deg ---------------------------------------------- 20:55:15   +61.2221  +033.3469   +04  195  -09 20:55:23   +59.0986  +031.2235   +06  194  -10 20:55:30   +57.6041  +029.6081   +08  192  -12 20:55:38   +56.3941  +028.2246   +09  191  -12 20:55:45   +55.3568  +026.9823   +10  190  -13 20:55:53   +54.4389  +025.8375   +11  189  -14 20:56:00   +53.6099  +024.7653   +12  188  -14 20:56:08   +52.8508  +023.7496   +13  187  -15 20:56:15   +52.1484  +022.7794   +14  186  -15 20:56:23   +51.4933  +021.8469   +15  185  -16 20:56:30   +50.8786  +020.9460   +15  184  -16 20:56:38   +50.2988  +020.0723   +16  184  -16 20:56:45   +49.7497  +019.2220   +16  183  -16 20:56:53   +49.2279  +018.3922   +17  182  -17 20:57:00   +48.7306  +017.5804   +17  181  -17 20:57:08   +48.2555  +016.7846   +18  181  -17 20:57:15   +47.8006  +016.0031   +18  180  -17 20:57:23   +47.3643  +015.2343   +19  179  -17 20:57:30   +46.9451  +014.4769   +19  179  -17 20:57:38   +46.5418  +013.7298   +20  178  -17 20:57:45   +46.1534  +012.9921   +20  177  -18 20:57:53   +45.7789  +012.2628   +20  176  -18 20:58:00   +45.4175  +011.5411   +21  176  -18 20:58:08   +45.0684  +010.8264   +21  175  -18 20:58:15   +44.7310  +010.1179   +21  174  -18 20:58:23   +44.4047  +009.4151   +22  174  -18 20:58:30   +44.0890  +008.7174   +22  173  -17 20:58:38   +43.7834  +008.0243   +22  172  -17 20:58:45   +43.4875  +007.3354   +22  172  -17 20:58:53   +43.2010  +006.6502   +22  171  -17 20:59:00   +42.9234  +005.9683   +23  170  -17 20:59:08   +42.6544  +005.2894   +23  170  -17 20:59:15   +42.3939  +004.6130   +23  169  -17 20:59:23   +42.1415  +003.9388   +23  168  -17 20:59:30   +41.8969  +003.2665   +23  168  -17 20:59:38   +41.6600  +002.5958   +23  167  -17 20:59:45   +41.4307  +001.9264   +24  167  -16 20:59:53   +41.2086  +001.2580   +24  166  -16 21:00:00   +40.9937  +000.5902   +24  165  -16 21:00:08   +40.7858  -000.0771   +24  165  -16 21:00:15   +40.5848  -000.7442   +24  164  -16 21:00:23   +40.3906  -001.4115   +24  163  -15 21:00:30   +40.2031  -002.0792   +24  163  -15 21:00:38   +40.0222  -002.7475   +24  162  -15 21:00:45   +39.8479  -003.4168   +24  161  -15 21:00:53   +39.6800  -004.0872   +24  161  -14 21:01:00   +39.5186  -004.7590   +24  160  -14 21:01:08   +39.3635  -005.4326   +24  159  -14 21:01:15   +39.2149  -006.1082   +24  159  -14 21:01:23   +39.0725  -006.7860   +24  158  -13 21:01:30   +38.9366  -007.4663   +24  158  -13 21:01:38   +38.8070  -008.1495   +24  157  -13 21:01:45   +38.6838  -008.8358   +24  156  -12 21:01:53   +38.5670  -009.5256   +24  156  -12 21:02:00   +38.4567  -010.2191   +23  155  -12 21:02:08   +38.3528  -010.9167   +23  154  -11 21:02:15   +38.2556  -011.6188   +23  154  -11 21:02:23   +38.1651  -012.3257   +23  153  -11 21:02:30   +38.0813  -013.0379   +23  152  -10 21:02:38   +38.0045  -013.7557   +23  152  -10 21:02:45   +37.9346  -014.4796   +22  151  -09 21:02:53   +37.8720  -015.2100   +22  151  -09 21:03:00   +37.8167  -015.9476   +22  150  -09 21:03:08   +37.7690  -016.6927   +22  149  -08 21:03:15   +37.7291  -017.4461   +21  149  -08 21:03:23   +37.6973  -018.2084   +21  148  -07 21:03:30   +37.6737  -018.9802   +21  147  -07 21:03:38   +37.6589  -019.7624   +21  147  -06 21:03:45   +37.6531  -020.5559   +20  146  -06 21:03:53   +37.6567  -021.3615   +20  145  -05 21:04:00   +37.6703  -022.1804   +20  145  -05 21:04:08   +37.6944  -023.0137   +19  144  -04 21:04:15   +37.7296  -023.8628   +19  143  -03 21:04:23   +37.7767  -024.7294   +18  143  -03 21:04:30   +37.8364  -025.6150   +18  142  -02 21:04:38   +37.9099  -026.5219   +17  141  -01 21:04:45   +37.9981  -027.4523   +17  141  -01 21:04:53   +38.1027  -028.4093   +16  140  +00 21:05:00   +38.2251  -029.3963   +16  139  +01 21:05:08   +38.3676  -030.4174   +15  138  +01 21:05:15   +38.5326  -031.4778   +14  138  +02 21:05:23   +38.7234  -032.5843   +14  137  +03 21:05:30   +38.9443  -033.7453   +13  136  +04 21:05:38   +39.2009  -034.9724   +12  135  +05 21:05:45   +39.5013  -036.2817   +11  134  +06 21:05:53   +39.8570  -037.6969   +10  133  +07 21:06:00   +40.2866  -039.2554   +09  132  +08 21:06:08   +40.8227  -041.0232   +08  131  +10 21:06:15   +41.5343  -043.1403   +06  130  +11 21:06:23   +42.6375  -046.0457   +04  128  +14

Longitude measured positiv to the East.

------------------------------------------------------------------------------------------- Azm Sun | Lat----EDGE1----Lon | Lat----EDGE2----Lon deg deg | +DD.dddd +DDD.dddd | +DD.dddd +DDD.dddd --------------------------------------------- +60.9680 +033.2209 +61.4938 +033.4852 +58.9319 +031.1621 +59.2698 +031.2876 +57.4696 +029.5696 +57.7409 +029.6478 +56.2776 +028.1985 +56.5121 +028.2514 +55.2521 +026.9641 +55.4626 +027.0009 +54.3426 +025.8249 +54.5359 +025.8505 +53.5201 +024.7568 +53.7004 +024.7740 +52.7661 +023.7443 +52.9360 +023.7550 +52.0679 +022.7767 +52.2293 +022.7821 +51.4163 +021.8464 +51.5707 +021.8474 +50.8046 +020.9474 +50.9529 +020.9448 +50.2274 +020.0752 +50.3705 +020.0695 +49.6805 +019.2262 +49.8192 +019.2178 +49.1607 +018.3976 +49.2954 +018.3868 +48.6652 +017.5869 +48.7963 +017.5740 +48.1916 +016.7920 +48.3196 +016.7772 +47.7382 +016.0113 +47.8633 +015.9948 +47.3031 +015.2433 +47.4257 +015.2252 +46.8851 +014.4866 +47.0053 +014.4671 +46.4829 +013.7402 +46.6010 +013.7194 +46.0954 +013.0031 +46.2116 +012.9810 +45.7218 +012.2744 +45.8361 +012.2512 +45.3612 +011.5533 +45.4739 +011.5290 +45.0129 +010.8390 +45.1240 +010.8137 +44.6762 +010.1310 +44.7859 +010.1047 +44.3505 +009.4287 +44.4590 +009.4014 +44.0355 +008.7314 +44.1427 +008.7033 +43.7304 +008.0388 +43.8365 +008.0098 +43.4351 +007.3503 +43.5401 +007.3204 +43.1490 +006.6655 +43.2531 +006.6348 +42.8719 +005.9840 +42.9750 +005.9526 +42.6033 +005.3054 +42.7057 +005.2732 +42.3432 +004.6294 +42.4447 +004.5965 +42.0911 +003.9556 +42.1919 +003.9219 +41.8469 +003.2837 +41.9470 +003.2493 +41.6103 +002.6134 +41.7098 +002.5782 +41.3813 +001.9443 +41.4802 +001.9084 +41.1595 +001.2763 +41.2578 +001.2396 +40.9448 +000.6089 +41.0427 +000.5715 +40.7371 -000.0581 +40.8346 -000.0962 +40.5364 -000.7249 +40.6334 -000.7637 +40.3424 -001.3918 +40.4390 -001.4313 +40.1550 -002.0591 +40.2514 -002.0994 +39.9743 -002.7270 +40.0703 -002.7681 +39.8001 -003.3959 +39.8958 -003.4377 +39.6323 -004.0659 +39.7278 -004.1085 +39.4709 -004.7374 +39.5663 -004.7808 +39.3160 -005.4105 +39.4112 -005.4548 +39.1674 -006.0857 +39.2624 -006.1307 +39.0251 -006.7631 +39.1201 -006.8090 +38.8892 -007.4430 +38.9841 -007.4897 +38.7596 -008.1257 +38.8545 -008.1734 +38.6364 -008.8115 +38.7313 -008.8602 +38.5196 -009.5008 +38.6145 -009.5504 +38.4092 -010.1938 +38.5042 -010.2444 +38.3053 -010.8910 +38.4005 -010.9426 +38.2080 -011.5925 +38.3033 -011.6452 +38.1174 -012.2989 +38.2129 -012.3527 +38.0335 -013.0104 +38.1293 -013.0655 +37.9565 -013.7276 +38.0525 -013.7839 +37.8865 -014.4509 +37.9829 -014.5084 +37.8237 -015.1806 +37.9204 -015.2396 +37.7682 -015.9175 +37.8654 -015.9778 +37.7203 -016.6619 +37.8179 -016.7237 +37.6801 -017.4144 +37.7783 -017.4779 +37.6479 -018.1758 +37.7467 -018.2411 +37.6241 -018.9468 +37.7235 -019.0138 +37.6089 -019.7280 +37.7090 -019.7970 +37.6026 -020.5204 +37.7036 -020.5915 +37.6058 -021.3249 +37.7078 -021.3982 +37.6189 -022.1426 +37.7219 -022.2183 +37.6424 -022.9746 +37.7465 -023.0530 +37.6770 -023.8223 +37.7824 -023.9036 +37.7233 -024.6873 +37.8301 -024.7717 +37.7823 -025.5712 +37.8907 -025.6590 +37.8549 -026.4761 +37.9650 -026.5678 +37.9422 -027.4045 +38.0543 -027.5005 +38.0456 -028.3591 +38.1600 -028.4599 +38.1667 -029.3434 +38.2838 -029.4495 +38.3077 -030.3614 +38.4278 -030.4738 +38.4709 -031.4183 +38.5946 -031.5379 +38.6597 -032.5205 +38.7875 -032.6486 +38.8780 -033.6765 +39.0110 -033.8148 +39.1316 -034.8974 +39.2707 -035.0482 +39.4280 -036.1988 +39.5751 -036.3656 +39.7785 -037.6036 +39.9361 -037.7914 +40.2009 -039.1476 +40.3733 -039.3649 +40.7259 -040.8932 +40.9210 -041.1561 +41.4173 -042.9697 +41.6543 -043.3168 +42.4636 -045.7600 +42.8236 -046.3559 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.

Collaborative Occultation Resources and Archive (CORA)

Stellar Occultation by (9031) 1989 WG4 on 2024-07-25 (21:00:50 UT)