Stellar Occultation by (42755) 1998 ST61 on 2025-09-20 (20:26:21 UT)
| Event Details |
Occultation UUID [and db] : 77afd0d0-ddb7-11f0-547e-6dddeb7fadd3 [observed]
Occultation Date + Time : 2025-09-20 at 20:26:21 UT +/- 0.01 min [1]
Object Designation : (42755) 1998 ST61
Star Designation : GDR3 2712028550412358912
Star Coordinates (ICRF) : RA = 22 56 02.2080, DE = +06 58 59.571 [2]
Star Magnitudes : G = 10.48 mag, RP = 10.02 mag, BP = 10.78 mag
Object Magnitude : V = 18.29 mag
Estimated Magnitude Drop : 7.8 mag
Estimated Max. Duration : 0.4 sec
Speed of the shadow : 11.8 km/s
Object Mean Diameter : 4.9 km (src: astorb) => apparent = 4 mas
Apparent Motion : 0.5267 arcs/min @ PA = 227 deg
Horizontal Parallax : 4.7200 arcs
Dynamical Class : MBA
Elongation to Moon & Sun : 167° (sunlit = 1%), Sun = 164°
Cross-track uncertainty : 1.0 mas = 1 km = 0.28 path-width (1-sig)
RUWE and duplicate source : 1.07 mas, dup.src = 0 (0:false, 1:true)
Ephemeris Reference : JPL#50
Note : FP:true
[1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0
|
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| Occultation Ground Track |
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Time[UT] | Lat----CENTR----Lon | Alt Azm Sun | Lat----EDGE1----Lon | Lat----EDGE2----Lon
hh:mm:ss | +DD.dddd +DDD.dddd | deg deg deg | +DD.dddd +DDD.dddd | +DD.dddd +DDD.dddd
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20:20:04 +88.2754 +156.8299 +06 298 +01 +88.3238 +152.2489 +88.2147 +161.2288
20:20:12 +86.7637 +055.9708 +10 197 -02 +86.6737 +055.7662 +86.8544 +056.1915
20:20:19 +84.1500 +042.5349 +13 184 -05 +84.0779 +042.6360 +84.2225 +042.4316
20:20:27 +81.9233 +037.3889 +15 178 -07 +81.8622 +037.5056 +81.9847 +037.2705
20:20:34 +79.9651 +034.3199 +17 175 -09 +79.9112 +034.4293 +80.0191 +034.2091
20:20:42 +78.1970 +032.1170 +19 173 -10 +78.1483 +032.2174 +78.2458 +032.0157
20:20:49 +76.5716 +030.3731 +20 171 -12 +76.5268 +030.4655 +76.6165 +030.2801
20:20:57 +75.0579 +028.9088 +22 169 -13 +75.0163 +028.9944 +75.0996 +028.8227
20:21:04 +73.6346 +027.6311 +23 168 -14 +73.5954 +027.7110 +73.6738 +027.5508
20:21:12 +72.2862 +026.4863 +24 167 -15 +72.2492 +026.5613 +72.3232 +026.4109
20:21:19 +71.0012 +025.4405 +25 165 -16 +70.9660 +025.5114 +71.0364 +025.3693
20:21:27 +69.7706 +024.4713 +27 164 -17 +69.7370 +024.5387 +69.8043 +024.4036
20:21:34 +68.5875 +023.5630 +28 163 -18 +68.5552 +023.6273 +68.6198 +023.4985
20:21:42 +67.4461 +022.7041 +29 162 -19 +67.4151 +022.7657 +67.4772 +022.6424
20:21:49 +66.3418 +021.8863 +30 161 -19 +66.3119 +021.9455 +66.3719 +021.8270
20:21:57 +65.2707 +021.1029 +30 160 -20 +65.2417 +021.1599 +65.2998 +021.0457
20:22:04 +64.2296 +020.3487 +31 159 -21 +64.2014 +020.4038 +64.2577 +020.2935
20:22:12 +63.2155 +019.6197 +32 158 -21 +63.1882 +019.6731 +63.2429 +019.5663
20:22:19 +62.2262 +018.9125 +33 157 -22 +62.1996 +018.9643 +62.2528 +018.8607
20:22:27 +61.2595 +018.2244 +34 156 -23 +61.2336 +018.2747 +61.2855 +018.1739
20:22:34 +60.3137 +017.5529 +34 155 -23 +60.2884 +017.6019 +60.3390 +017.5038
20:22:42 +59.3871 +016.8962 +35 154 -24 +59.3623 +016.9440 +59.4118 +016.8483
20:22:49 +58.4783 +016.2525 +36 153 -24 +58.4540 +016.2992 +58.5025 +016.2058
20:22:57 +57.5860 +015.6205 +36 152 -25 +57.5622 +015.6661 +57.6097 +015.5747
20:23:04 +56.7091 +014.9987 +37 151 -25 +56.6858 +015.0434 +56.7323 +014.9540
20:23:12 +55.8465 +014.3862 +38 150 -26 +55.8237 +014.4301 +55.8693 +014.3424
20:23:19 +54.9974 +013.7820 +38 149 -26 +54.9751 +013.8250 +55.0199 +013.7389
20:23:27 +54.1610 +013.1851 +39 148 -26 +54.1390 +013.2273 +54.1830 +013.1428
20:23:34 +53.3363 +012.5947 +39 146 -27 +53.3147 +012.6362 +53.3580 +012.5532
20:23:42 +52.5228 +012.0102 +40 145 -27 +52.5015 +012.0510 +52.5441 +011.9694
20:23:49 +51.7198 +011.4309 +40 144 -27 +51.6988 +011.4711 +51.7408 +011.3907
20:23:57 +50.9267 +010.8563 +41 143 -28 +50.9060 +010.8959 +50.9474 +010.8166
20:24:04 +50.1429 +010.2857 +41 142 -28 +50.1226 +010.3247 +50.1633 +010.2466
20:24:12 +49.3680 +009.7186 +41 141 -28 +49.3479 +009.7571 +49.3881 +009.6801
20:24:19 +48.6015 +009.1547 +42 140 -28 +48.5817 +009.1927 +48.6213 +009.1166
20:24:27 +47.8429 +008.5934 +42 139 -28 +47.8233 +008.6309 +47.8624 +008.5558
20:24:34 +47.0918 +008.0343 +42 138 -29 +47.0725 +008.0714 +47.1111 +007.9971
20:24:42 +46.3478 +007.4771 +43 137 -29 +46.3288 +007.5138 +46.3669 +007.4404
20:24:49 +45.6106 +006.9214 +43 136 -29 +45.5918 +006.9577 +45.6295 +006.8850
20:24:57 +44.8799 +006.3668 +43 135 -29 +44.8613 +006.4027 +44.8985 +006.3308
20:25:04 +44.1553 +005.8130 +44 134 -29 +44.1369 +005.8486 +44.1737 +005.7774
20:25:12 +43.4365 +005.2597 +44 132 -29 +43.4183 +005.2950 +43.4547 +005.2244
20:25:19 +42.7232 +004.7066 +44 131 -29 +42.7052 +004.7416 +42.7412 +004.6716
20:25:27 +42.0152 +004.1533 +44 130 -29 +41.9974 +004.1880 +42.0330 +004.1187
20:25:34 +41.3122 +003.5997 +44 129 -29 +41.2946 +003.6340 +41.3299 +003.5652
20:25:42 +40.6140 +003.0453 +44 128 -29 +40.5965 +003.0794 +40.6314 +003.0111
20:25:49 +39.9203 +002.4899 +45 127 -29 +39.9029 +002.5237 +39.9376 +002.4559
20:25:57 +39.2308 +001.9332 +45 126 -29 +39.2137 +001.9668 +39.2480 +001.8995
20:26:04 +38.5455 +001.3749 +45 125 -29 +38.5285 +001.4084 +38.5625 +001.3414
20:26:12 +37.8641 +000.8148 +45 124 -29 +37.8472 +000.8481 +37.8809 +000.7816
20:26:19 +37.1863 +000.2527 +45 122 -29 +37.1696 +000.2857 +37.2030 +000.2195
20:26:27 +36.5121 -000.3119 +45 121 -29 +36.4955 -000.2790 +36.5286 -000.3449
20:26:34 +35.8411 -000.8792 +45 120 -29 +35.8247 -000.8464 +35.8575 -000.9120
20:26:42 +35.1733 -001.4494 +45 119 -29 +35.1570 -001.4168 +35.1895 -001.4820
20:26:49 +34.5084 -002.0228 +45 118 -29 +34.4923 -001.9904 +34.5246 -002.0553
20:26:57 +33.8464 -002.5998 +44 117 -29 +33.8303 -002.5675 +33.8624 -002.6322
20:27:04 +33.1869 -003.1806 +44 116 -28 +33.1710 -003.1484 +33.2028 -003.2129
20:27:12 +32.5299 -003.7656 +44 115 -28 +32.5142 -003.7334 +32.5457 -003.7977
20:27:19 +31.8753 -004.3549 +44 114 -28 +31.8596 -004.3229 +31.8909 -004.3870
20:27:27 +31.2228 -004.9491 +44 113 -28 +31.2072 -004.9171 +31.2383 -004.9811
20:27:34 +30.5723 -005.5484 +44 112 -28 +30.5569 -005.5165 +30.5877 -005.5804
20:27:42 +29.9236 -006.1532 +43 111 -27 +29.9083 -006.1213 +29.9389 -006.1851
20:27:49 +29.2767 -006.7638 +43 110 -27 +29.2615 -006.7319 +29.2919 -006.7957
20:27:57 +28.6313 -007.3806 +43 109 -27 +28.6163 -007.3488 +28.6464 -007.4125
20:28:04 +27.9874 -008.0041 +43 108 -26 +27.9724 -007.9722 +28.0024 -008.0359
20:28:12 +27.3447 -008.6345 +42 107 -26 +27.3298 -008.6027 +27.3596 -008.6664
20:28:19 +26.7032 -009.2725 +42 106 -26 +26.6884 -009.2407 +26.7179 -009.3044
20:28:27 +26.0626 -009.9185 +42 105 -25 +26.0479 -009.8866 +26.0773 -009.9504
20:28:34 +25.4228 -010.5729 +41 104 -25 +25.4083 -010.5409 +25.4374 -010.6049
20:28:42 +24.7838 -011.2363 +41 103 -25 +24.7693 -011.2043 +24.7982 -011.2683
20:28:49 +24.1452 -011.9093 +40 102 -24 +24.1309 -011.8771 +24.1596 -011.9414
20:28:57 +23.5071 -012.5924 +40 101 -24 +23.4928 -012.5602 +23.5213 -012.6247
20:29:04 +22.8691 -013.2864 +39 100 -23 +22.8549 -013.2541 +22.8833 -013.3188
20:29:12 +22.2312 -013.9920 +39 099 -23 +22.2171 -013.9595 +22.2452 -014.0245
20:29:19 +21.5931 -014.7099 +38 098 -22 +21.5791 -014.6773 +21.6071 -014.7426
20:29:27 +20.9547 -015.4410 +38 098 -22 +20.9409 -015.4081 +20.9686 -015.4738
20:29:34 +20.3159 -016.1861 +37 097 -21 +20.3021 -016.1531 +20.3296 -016.2192
20:29:42 +19.6763 -016.9464 +37 096 -21 +19.6626 -016.9131 +19.6900 -016.9797
20:29:49 +19.0359 -017.7228 +36 095 -20 +19.0223 -017.6892 +19.0494 -017.7564
20:29:57 +18.3943 -018.5166 +35 094 -19 +18.3808 -018.4828 +18.4077 -018.5505
20:30:04 +17.7513 -019.3293 +35 094 -19 +17.7380 -019.2951 +17.7647 -019.3635
20:30:12 +17.1067 -020.1622 +34 093 -18 +17.0935 -020.1276 +17.1200 -020.1968
20:30:19 +16.4602 -021.0171 +33 092 -17 +16.4471 -020.9821 +16.4734 -021.0522
20:30:27 +15.8115 -021.8960 +32 092 -17 +15.7985 -021.8605 +15.8245 -021.9316
20:30:34 +15.1602 -022.8011 +32 091 -16 +15.1474 -022.7650 +15.1731 -022.8372
20:30:42 +14.5060 -023.7348 +31 090 -15 +14.4933 -023.6981 +14.5188 -023.7715
20:30:49 +13.8484 -024.7002 +30 090 -14 +13.8358 -024.6628 +13.8610 -024.7376
20:30:57 +13.1869 -025.7006 +29 089 -13 +13.1744 -025.6625 +13.1993 -025.7388
20:31:04 +12.5209 -026.7402 +28 089 -12 +12.5086 -026.7011 +12.5332 -026.7793
20:31:12 +11.8498 -027.8238 +27 088 -11 +11.8376 -027.7837 +11.8619 -027.8640
20:31:19 +11.1726 -028.9574 +26 088 -10 +11.1607 -028.9161 +11.1845 -028.9988
20:31:27 +10.4886 -030.1484 +24 087 -09 +10.4769 -030.1056 +10.5003 -030.1912
20:31:34 +09.7963 -031.4060 +23 087 -08 +09.7849 -031.3615 +09.8077 -031.4505
20:31:42 +09.0942 -032.7423 +22 086 -07 +09.0831 -032.6957 +09.1054 -032.7889
20:31:49 +08.3803 -034.1734 +20 086 -05 +08.3695 -034.1243 +08.3910 -034.2226
20:31:57 +07.6516 -035.7217 +19 085 -04 +07.6413 -035.6693 +07.6619 -035.7742
20:32:04 +06.9039 -037.4201 +17 085 -02 +06.8942 -037.3633 +06.9136 -037.4770
20:32:12 +06.1308 -039.3200 +15 084 +00 +06.1219 -039.2572 +06.1397 -039.3831
20:32:19 +05.3209 -041.5120 +13 084 +02 +05.3132 -041.4397 +05.3285 -041.5846
20:32:27 +04.4506 -044.1843 +10 084 +04 +04.4450 -044.0949 +04.4560 -044.2745
20:32:34 +03.4487 -047.9105 +07 083 +08 +03.4491 -047.7735 +03.4479 -048.0505
Longitude measured positiv to the East. Azimuth (Azm) measured from North to East. |
