Cora»OccDetail

Stellar Occultation by (195809) 2002 QL18 on 2024-08-23 (20:37:02 UT)

Event Details
Occultation UUID [and db] : 47239a20-ddb5-11f0-547e-f0a8ebd20dc9 [observed] Occultation Date + Time : 2024-08-23 at 20:37:02 UT +/- 0.07 min [1] Object Designation : (195809) 2002 QL18 Star Designation : GDR3 2673286639732446336 Star Coordinates (ICRF) : RA = 21 42 34.9501, DE = -03 20 04.172 [2] Star Magnitudes : G = 9.19 mag, RP = 8.5 mag, BP = 9.72 mag Object Magnitude : V = 19.33 mag Estimated Magnitude Drop : 10.1 mag Estimated Max. Duration : 0.2 sec Speed of the shadow : 12.9 km/s Object Mean Diameter : 3.0 km (src: astorb) => apparent = 2 mas Apparent Motion : 0.5683 arcs/min @ PA = 228 deg Horizontal Parallax : 4.6870 arcs Dynamical Class : MBA Elongation to Moon & Sun : 61° (sunlit = 78%), Sun = 169° Cross-track uncertainty : 20.0 mas = 27 km = 9.07 path-width (1-sig) RUWE and duplicate source : 0.99 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#40 Note : FP:true [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

 Occultation UUID [and db] : 47239a20-ddb5-11f0-547e-f0a8ebd20dc9 [observed]

 Occultation Date + Time   : 2024-08-23 at 20:37:02 UT +/- 0.07 min  [1]
 Object Designation        : (195809) 2002 QL18
 Star Designation          : GDR3 2673286639732446336
 Star Coordinates (ICRF)   : RA = 21 42 34.9501, DE = -03 20 04.172  [2]
 Star Magnitudes           : G = 9.19 mag, RP = 8.5 mag, BP = 9.72 mag
 Object Magnitude          : V = 19.33 mag
 Estimated Magnitude Drop  : 10.1 mag
 Estimated Max. Duration   : 0.2 sec
 Speed of the shadow       : 12.9 km/s
 Object Mean Diameter      : 3.0 km  (src: astorb) => apparent = 2 mas
 Apparent Motion           : 0.5683 arcs/min @ PA = 228 deg
 Horizontal Parallax       : 4.6870 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 61° (sunlit = 78%), Sun = 169°
 Cross-track uncertainty   : 20.0 mas = 27 km = 9.07 path-width (1-sig)
 RUWE and duplicate source : 0.99 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#40
 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 ---------------------------------------------- 20:31:44 +85.5125 +016.6107 +01 152 +07 20:31:52 +78.3987 +031.1050 +08 166 +00 20:31:59 +75.0883 +031.6188 +11 166 -03 20:32:07 +72.5281 +031.3456 +14 166 -05 20:32:14 +70.3595 +030.8371 +16 165 -07 20:32:22 +68.4417 +030.2358 +18 165 -09 20:32:29 +66.7023 +029.5940 +19 164 -10 20:32:37 +65.0979 +028.9347 +21 163 -12 20:32:44 +63.6003 +028.2690 +22 162 -13 20:32:52 +62.1898 +027.6025 +23 161 -14 20:32:59 +60.8522 +026.9383 +24 160 -15 20:33:07 +59.5766 +026.2778 +25 160 -16 20:33:14 +58.3546 +025.6217 +26 159 -17 20:33:22 +57.1795 +024.9703 +27 158 -18 20:33:29 +56.0459 +024.3234 +28 157 -19 20:33:37 +54.9493 +023.6810 +29 156 -20 20:33:44 +53.8860 +023.0426 +30 155 -21 20:33:52 +52.8528 +022.4079 +31 154 -21 20:33:59 +51.8470 +021.7767 +32 153 -22 20:34:07 +50.8663 +021.1484 +32 152 -23 20:34:14 +49.9087 +020.5227 +33 151 -23 20:34:22 +48.9724 +019.8992 +34 150 -24 20:34:29 +48.0558 +019.2775 +34 149 -24 20:34:37 +47.1575 +018.6573 +35 148 -25 20:34:44 +46.2764 +018.0382 +35 147 -25 20:34:52 +45.4112 +017.4198 +36 146 -26 20:34:59 +44.5610 +016.8018 +36 145 -26 20:35:07 +43.7250 +016.1839 +37 144 -26 20:35:14 +42.9022 +015.5658 +37 143 -27 20:35:22 +42.0919 +014.9470 +37 142 -27 20:35:29 +41.2935 +014.3273 +38 141 -27 20:35:37 +40.5063 +013.7065 +38 140 -28 20:35:44 +39.7298 +013.0841 +38 139 -28 20:35:52 +38.9634 +012.4598 +39 138 -28 20:35:59 +38.2066 +011.8334 +39 137 -28 20:36:07 +37.4590 +011.2046 +39 136 -28 20:36:14 +36.7202 +010.5730 +39 135 -29 20:36:22 +35.9898 +009.9383 +39 134 -29 20:36:29 +35.2674 +009.3002 +40 133 -29 20:36:37 +34.5527 +008.6584 +40 132 -29 20:36:44 +33.8453 +008.0125 +40 131 -29 20:36:52 +33.1450 +007.3623 +40 129 -29 20:36:59 +32.4516 +006.7073 +40 128 -29 20:37:07 +31.7647 +006.0473 +40 127 -29 20:37:14 +31.0840 +005.3818 +40 126 -29 20:37:22 +30.4095 +004.7106 +40 125 -29 20:37:29 +29.7409 +004.0331 +40 124 -29 20:37:37 +29.0779 +003.3490 +40 123 -29 20:37:44 +28.4204 +002.6578 +39 122 -29 20:37:52 +27.7682 +001.9592 +39 121 -29 20:37:59 +27.1212 +001.2526 +39 120 -28 20:38:07 +26.4792 +000.5376 +39 119 -28 20:38:14 +25.8421 -000.1865 +39 118 -28 20:38:22 +25.2097 -000.9200 +38 117 -28 20:38:29 +24.5819 -001.6637 +38 116 -28 20:38:37 +23.9586 -002.4182 +38 115 -27 20:38:44 +23.3397 -003.1841 +37 114 -27 20:38:52 +22.7251 -003.9623 +37 113 -27 20:38:59 +22.1147 -004.7534 +37 112 -26 20:39:07 +21.5084 -005.5584 +36 111 -26 20:39:14 +20.9062 -006.3781 +36 111 -25 20:39:22 +20.3081 -007.2137 +35 110 -25 20:39:29 +19.7139 -008.0662 +35 109 -24 20:39:37 +19.1236 -008.9370 +34 108 -24 20:39:44 +18.5373 -009.8272 +34 107 -23 20:39:52 +17.9549 -010.7387 +33 106 -23 20:39:59 +17.3764 -011.6729 +32 106 -22 20:40:07 +16.8018 -012.6319 +32 105 -22 20:40:14 +16.2312 -013.6180 +31 104 -21 20:40:22 +15.6646 -014.6336 +30 103 -20 20:40:29 +15.1022 -015.6818 +29 103 -19 20:40:37 +14.5441 -016.7659 +28 102 -19 20:40:44 +13.9904 -017.8900 +27 101 -18 20:40:52 +13.4413 -019.0589 +26 101 -17 20:40:59 +12.8971 -020.2786 +25 100 -16 20:41:07 +12.3582 -021.5563 +24 099 -15 20:41:14 +11.8251 -022.9012 +23 099 -14 20:41:22 +11.2984 -024.3250 +22 098 -13 20:41:29 +10.7789 -025.8435 +20 098 -11 20:41:37 +10.2680 -027.4784 +19 097 -10 20:41:44 +09.7674 -029.2612 +17 097 -08 20:41:52 +09.2800 -031.2410 +15 096 -07 20:41:59 +08.8107 -033.5022 +13 096 -05 20:42:07 +08.3696 -036.2160 +11 095 -02 20:42:14 +07.9853 -039.8674 +07 094 +01 Longitude measured positiv to the East.

Occultation Ground Track

 Time[UT] | Lat----CENTR----Lon | Alt hh:mm:ss | +DD.dddd  +DDD.dddd | deg ---------------------------------------------- 20:31:44   +85.5125  +016.6107   +01  152  +07 20:31:52   +78.3987  +031.1050   +08  166  +00 20:31:59   +75.0883  +031.6188   +11  166  -03 20:32:07   +72.5281  +031.3456   +14  166  -05 20:32:14   +70.3595  +030.8371   +16  165  -07 20:32:22   +68.4417  +030.2358   +18  165  -09 20:32:29   +66.7023  +029.5940   +19  164  -10 20:32:37   +65.0979  +028.9347   +21  163  -12 20:32:44   +63.6003  +028.2690   +22  162  -13 20:32:52   +62.1898  +027.6025   +23  161  -14 20:32:59   +60.8522  +026.9383   +24  160  -15 20:33:07   +59.5766  +026.2778   +25  160  -16 20:33:14   +58.3546  +025.6217   +26  159  -17 20:33:22   +57.1795  +024.9703   +27  158  -18 20:33:29   +56.0459  +024.3234   +28  157  -19 20:33:37   +54.9493  +023.6810   +29  156  -20 20:33:44   +53.8860  +023.0426   +30  155  -21 20:33:52   +52.8528  +022.4079   +31  154  -21 20:33:59   +51.8470  +021.7767   +32  153  -22 20:34:07   +50.8663  +021.1484   +32  152  -23 20:34:14   +49.9087  +020.5227   +33  151  -23 20:34:22   +48.9724  +019.8992   +34  150  -24 20:34:29   +48.0558  +019.2775   +34  149  -24 20:34:37   +47.1575  +018.6573   +35  148  -25 20:34:44   +46.2764  +018.0382   +35  147  -25 20:34:52   +45.4112  +017.4198   +36  146  -26 20:34:59   +44.5610  +016.8018   +36  145  -26 20:35:07   +43.7250  +016.1839   +37  144  -26 20:35:14   +42.9022  +015.5658   +37  143  -27 20:35:22   +42.0919  +014.9470   +37  142  -27 20:35:29   +41.2935  +014.3273   +38  141  -27 20:35:37   +40.5063  +013.7065   +38  140  -28 20:35:44   +39.7298  +013.0841   +38  139  -28 20:35:52   +38.9634  +012.4598   +39  138  -28 20:35:59   +38.2066  +011.8334   +39  137  -28 20:36:07   +37.4590  +011.2046   +39  136  -28 20:36:14   +36.7202  +010.5730   +39  135  -29 20:36:22   +35.9898  +009.9383   +39  134  -29 20:36:29   +35.2674  +009.3002   +40  133  -29 20:36:37   +34.5527  +008.6584   +40  132  -29 20:36:44   +33.8453  +008.0125   +40  131  -29 20:36:52   +33.1450  +007.3623   +40  129  -29 20:36:59   +32.4516  +006.7073   +40  128  -29 20:37:07   +31.7647  +006.0473   +40  127  -29 20:37:14   +31.0840  +005.3818   +40  126  -29 20:37:22   +30.4095  +004.7106   +40  125  -29 20:37:29   +29.7409  +004.0331   +40  124  -29 20:37:37   +29.0779  +003.3490   +40  123  -29 20:37:44   +28.4204  +002.6578   +39  122  -29 20:37:52   +27.7682  +001.9592   +39  121  -29 20:37:59   +27.1212  +001.2526   +39  120  -28 20:38:07   +26.4792  +000.5376   +39  119  -28 20:38:14   +25.8421  -000.1865   +39  118  -28 20:38:22   +25.2097  -000.9200   +38  117  -28 20:38:29   +24.5819  -001.6637   +38  116  -28 20:38:37   +23.9586  -002.4182   +38  115  -27 20:38:44   +23.3397  -003.1841   +37  114  -27 20:38:52   +22.7251  -003.9623   +37  113  -27 20:38:59   +22.1147  -004.7534   +37  112  -26 20:39:07   +21.5084  -005.5584   +36  111  -26 20:39:14   +20.9062  -006.3781   +36  111  -25 20:39:22   +20.3081  -007.2137   +35  110  -25 20:39:29   +19.7139  -008.0662   +35  109  -24 20:39:37   +19.1236  -008.9370   +34  108  -24 20:39:44   +18.5373  -009.8272   +34  107  -23 20:39:52   +17.9549  -010.7387   +33  106  -23 20:39:59   +17.3764  -011.6729   +32  106  -22 20:40:07   +16.8018  -012.6319   +32  105  -22 20:40:14   +16.2312  -013.6180   +31  104  -21 20:40:22   +15.6646  -014.6336   +30  103  -20 20:40:29   +15.1022  -015.6818   +29  103  -19 20:40:37   +14.5441  -016.7659   +28  102  -19 20:40:44   +13.9904  -017.8900   +27  101  -18 20:40:52   +13.4413  -019.0589   +26  101  -17 20:40:59   +12.8971  -020.2786   +25  100  -16 20:41:07   +12.3582  -021.5563   +24  099  -15 20:41:14   +11.8251  -022.9012   +23  099  -14 20:41:22   +11.2984  -024.3250   +22  098  -13 20:41:29   +10.7789  -025.8435   +20  098  -11 20:41:37   +10.2680  -027.4784   +19  097  -10 20:41:44   +09.7674  -029.2612   +17  097  -08 20:41:52   +09.2800  -031.2410   +15  096  -07 20:41:59   +08.8107  -033.5022   +13  096  -05 20:42:07   +08.3696  -036.2160   +11  095  -02 20:42:14   +07.9853  -039.8674   +07  094  +01

Longitude measured positiv to the East.

------------------------------------------------------------------------------------------- Azm Sun | Lat----EDGE1----Lon | Lat----EDGE2----Lon deg deg | +DD.dddd +DDD.dddd | +DD.dddd +DDD.dddd --------------------------------------------- +84.9636 +020.0528 +86.1523 +012.1072 +78.3288 +031.2347 +78.4692 +030.9729 +75.0383 +031.6991 +75.1385 +031.5378 +72.4870 +031.4079 +72.5694 +031.2829 +70.3237 +030.8898 +70.3954 +030.7842 +68.4095 +030.2823 +68.4739 +030.1891 +66.6728 +029.6362 +66.7318 +029.5516 +65.0704 +028.9737 +65.1253 +028.8956 +63.5745 +028.3054 +63.6261 +028.2324 +62.1654 +027.6370 +62.2142 +027.5680 +60.8290 +026.9711 +60.8755 +026.9055 +59.5544 +026.3091 +59.5989 +026.2465 +58.3332 +025.6518 +58.3760 +025.5916 +57.1589 +024.9993 +57.2002 +024.9412 +56.0259 +024.3515 +56.0659 +024.2953 +54.9299 +023.7082 +54.9687 +023.6537 +53.8672 +023.0691 +53.9048 +023.0160 +52.8344 +022.4338 +52.8711 +022.3820 +51.8291 +021.8019 +51.8649 +021.7513 +50.8488 +021.1731 +50.8838 +021.1236 +49.8916 +020.5469 +49.9258 +020.4984 +48.9556 +019.9230 +48.9891 +019.8753 +48.0393 +019.3009 +48.0722 +019.2541 +47.1414 +018.6803 +47.1737 +018.6342 +46.2605 +018.0608 +46.2922 +018.0155 +45.3956 +017.4421 +45.4268 +017.3974 +44.5457 +016.8239 +44.5764 +016.7797 +43.7098 +016.2057 +43.7401 +016.1621 +42.8872 +015.5873 +42.9171 +015.5442 +42.0772 +014.9683 +42.1067 +014.9257 +41.2790 +014.3484 +41.3081 +014.3062 +40.4919 +013.7274 +40.5207 +013.6856 +39.7156 +013.1048 +39.7440 +013.0633 +38.9493 +012.4804 +38.9774 +012.4393 +38.1927 +011.8538 +38.2205 +011.8130 +37.4453 +011.2248 +37.4728 +011.1843 +36.7066 +010.5931 +36.7338 +010.5528 +35.9763 +009.9582 +36.0033 +009.9183 +35.2540 +009.3200 +35.2808 +009.2803 +34.5394 +008.6781 +34.5659 +008.6386 +33.8322 +008.0322 +33.8585 +007.9928 +33.1320 +007.3819 +33.1581 +007.3427 +32.4386 +006.7269 +32.4645 +006.6878 +31.7518 +006.0668 +31.7775 +006.0278 +31.0713 +005.4013 +31.0968 +005.3624 +30.3969 +004.7300 +30.4222 +004.6911 +29.7283 +004.0525 +29.7535 +004.0137 +29.0654 +003.3683 +29.0904 +003.3296 +28.4080 +002.6772 +28.4329 +002.6385 +27.7559 +001.9786 +27.7806 +001.9398 +27.1089 +001.2720 +27.1335 +001.2332 +26.4670 +000.5570 +26.4915 +000.5182 +25.8299 -000.1670 +25.8543 -000.2059 +25.1975 -000.9006 +25.2218 -000.9395 +24.5698 -001.6442 +24.5940 -001.6833 +23.9465 -002.3986 +23.9706 -002.4378 +23.3277 -003.1645 +23.3517 -003.2038 +22.7131 -003.9425 +22.7370 -003.9821 +22.1028 -004.7335 +22.1266 -004.7733 +21.4965 -005.5384 +21.5203 -005.5784 +20.8944 -006.3580 +20.9181 -006.3983 +20.2963 -007.1934 +20.3199 -007.2340 +19.7021 -008.0457 +19.7256 -008.0867 +19.1119 -008.9163 +19.1354 -008.9577 +18.5256 -009.8063 +18.5490 -009.8482 +17.9432 -010.7175 +17.9666 -010.7598 +17.3647 -011.6514 +17.3880 -011.6944 +16.7901 -012.6102 +16.8135 -012.6538 +16.2195 -013.5959 +16.2429 -013.6402 +15.6530 -014.6111 +15.6763 -014.6562 +15.0906 -015.6588 +15.1139 -015.7048 +14.5324 -016.7423 +14.5558 -016.7894 +13.9787 -017.8658 +14.0021 -017.9141 +13.4296 -019.0341 +13.4530 -019.0838 +12.8854 -020.2529 +12.9089 -020.3043 +12.3465 -021.5297 +12.3700 -021.5829 +11.8133 -022.8734 +11.8369 -022.9289 +11.2865 -024.2959 +11.3103 -024.3541 +10.7670 -025.8128 +10.7909 -025.8743 +10.2559 -027.4455 +10.2801 -027.5114 +09.7551 -029.2255 +09.7796 -029.2970 +09.2675 -031.2013 +09.2924 -031.2808 +08.7979 -033.4566 +08.8235 -033.5480 +08.3562 -036.1598 +08.3831 -036.2726 +07.9703 -039.7841 +08.0004 -039.9517 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.