Cora»OccDetail

Stellar Occultation by (145474) 2005 SA278 on 2025-10-23 (01:02:47 UT)

Event Details
Occultation UUID [and db] : 84342cc0-d2a6-11ee-7567-f613c9f527f8 [cetnos] Occultation Date + Time : 2025-10-23 at 01:02:47 UT +/- 1.43 min [1] Object Designation : (145474) 2005 SA278 Star Designation : GDR3 3284635686261759488 Star Coordinates (ICRF) : RA = 04 08 59.9920, DE = +04 59 27.814 [2] Star Magnitudes : G = 10.14 mag, RP = 9.59 mag, BP = 10.43 mag Object Magnitude : V = 21.77 mag Estimated Magnitude Drop : 11.6 mag Estimated Max. Duration : 9.5 sec Speed of the shadow : 19.9 km/s Object Mean Diameter : 188.6 km (src: CORA+astorb) => apparent = 8 mas Apparent Motion : 0.0483 arcs/min @ PA = 245 deg Horizontal Parallax : 0.2610 arcs Dynamical Class : TNO Elongation to Moon & Sun : 155° (sunlit = 2%), Sun = 145° Cross-track uncertainty : 34.7 mas = 847 km = 4.50 path-width (1-sig) RUWE and duplicate source : 1.46 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#16 (24-02-23) [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

Event Details

Occultation UUID [and db] : 84342cc0-d2a6-11ee-7567-f613c9f527f8 [cetnos] Occultation Date + Time : 2025-10-23 at 01:02:47 UT +/- 1.43 min [1] Object Designation : (145474) 2005 SA278 Star Designation : GDR3 3284635686261759488 Star Coordinates (ICRF) : RA = 04 08 59.9920, DE = +04 59 27.814 [2] Star Magnitudes : G = 10.14 mag, RP = 9.59 mag, BP = 10.43 mag Object Magnitude : V = 21.77 mag Estimated Magnitude Drop : 11.6 mag Estimated Max. Duration : 9.5 sec Speed of the shadow : 19.9 km/s Object Mean Diameter : 188.6 km (src: CORA+astorb) => apparent = 8 mas Apparent Motion : 0.0483 arcs/min @ PA = 245 deg Horizontal Parallax : 0.2610 arcs Dynamical Class : TNO Elongation to Moon & Sun : 155° (sunlit = 2%), Sun = 145° Cross-track uncertainty : 34.7 mas = 847 km = 4.50 path-width (1-sig) RUWE and duplicate source : 1.46 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#16 (24-02-23) [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0

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Occultation Ground Track
------------------ Time[UT] \| Lat----CENTR----Lon \| Alt hh:mm:ss \| +DD.dddd +DDD.dddd \| deg ---------------------------------------------- 00:59:02 +69.7403 +095.7527 +08 262 -03 00:59:13 +69.1139 +076.5230 +15 244 -09 00:59:23 +67.9706 +064.3162 +19 232 -13 00:59:33 +66.6750 +055.1360 +23 223 -17 00:59:44 +65.3265 +047.7541 +26 216 -20 00:59:54 +63.9654 +041.5739 +28 210 -23 01:00:05 +62.6104 +036.2506 +30 204 -26 01:00:15 +61.2704 +031.5654 +32 199 -28 01:00:26 +59.9497 +027.3702 +34 194 -31 01:00:36 +58.6501 +023.5606 +36 190 -33 01:00:46 +57.3718 +020.0601 +37 186 -35 01:00:57 +56.1147 +016.8109 +39 182 -37 01:01:07 +54.8778 +013.7689 +40 178 -39 01:01:18 +53.6601 +010.8988 +41 174 -41 01:01:28 +52.4607 +008.1729 +42 171 -43 01:01:39 +51.2783 +005.5681 +43 167 -45 01:01:49 +50.1119 +003.0655 +44 163 -47 01:01:59 +48.9603 +000.6492 +44 160 -49 01:02:10 +47.8225 -001.6946 +45 156 -51 01:02:20 +46.6973 -003.9775 +45 153 -52 01:02:31 +45.5839 -006.2099 +45 149 -54 01:02:41 +44.4812 -008.4013 +46 146 -56 01:02:52 +43.3882 -010.5600 +46 142 -57 01:03:02 +42.3042 -012.6939 +45 139 -59 01:03:12 +41.2281 -014.8102 +45 136 -60 01:03:23 +40.1590 -016.9162 +45 133 -61 01:03:33 +39.0962 -019.0187 +44 130 -62 01:03:44 +38.0386 -021.1248 +44 126 -63 01:03:54 +36.9853 -023.2416 +43 123 -64 01:04:05 +35.9355 -025.3767 +42 121 -65 01:04:15 +34.8880 -027.5382 +41 118 -66 01:04:25 +33.8417 -029.7352 +40 115 -66 01:04:36 +32.7956 -031.9779 +39 113 -66 01:04:46 +31.7481 -034.2783 +37 110 -66 01:04:57 +30.6977 -036.6507 +36 108 -65 01:05:07 +29.6425 -039.1128 +34 105 -65 01:05:17 +28.5802 -041.6876 +32 103 -64 01:05:28 +27.5078 -044.4052 +30 101 -62 01:05:38 +26.4210 -047.3081 +28 099 -61 01:05:49 +25.3140 -050.4597 +25 097 -58 01:05:59 +24.1770 -053.9624 +22 095 -56 01:06:10 +22.9929 -058.0056 +19 092 -52 01:06:20 +21.7220 -063.0280 +14 090 -48 01:06:30 +20.2002 -070.8769 +07 087 -41 Longitude measured positiv to the East.

Occultation Ground Track

 ------------------ Time[UT] | Lat----CENTR----Lon | Alt hh:mm:ss | +DD.dddd  +DDD.dddd | deg ---------------------------------------------- 00:59:02   +69.7403  +095.7527   +08  262  -03 00:59:13   +69.1139  +076.5230   +15  244  -09 00:59:23   +67.9706  +064.3162   +19  232  -13 00:59:33   +66.6750  +055.1360   +23  223  -17 00:59:44   +65.3265  +047.7541   +26  216  -20 00:59:54   +63.9654  +041.5739   +28  210  -23 01:00:05   +62.6104  +036.2506   +30  204  -26 01:00:15   +61.2704  +031.5654   +32  199  -28 01:00:26   +59.9497  +027.3702   +34  194  -31 01:00:36   +58.6501  +023.5606   +36  190  -33 01:00:46   +57.3718  +020.0601   +37  186  -35 01:00:57   +56.1147  +016.8109   +39  182  -37 01:01:07   +54.8778  +013.7689   +40  178  -39 01:01:18   +53.6601  +010.8988   +41  174  -41 01:01:28   +52.4607  +008.1729   +42  171  -43 01:01:39   +51.2783  +005.5681   +43  167  -45 01:01:49   +50.1119  +003.0655   +44  163  -47 01:01:59   +48.9603  +000.6492   +44  160  -49 01:02:10   +47.8225  -001.6946   +45  156  -51 01:02:20   +46.6973  -003.9775   +45  153  -52 01:02:31   +45.5839  -006.2099   +45  149  -54 01:02:41   +44.4812  -008.4013   +46  146  -56 01:02:52   +43.3882  -010.5600   +46  142  -57 01:03:02   +42.3042  -012.6939   +45  139  -59 01:03:12   +41.2281  -014.8102   +45  136  -60 01:03:23   +40.1590  -016.9162   +45  133  -61 01:03:33   +39.0962  -019.0187   +44  130  -62 01:03:44   +38.0386  -021.1248   +44  126  -63 01:03:54   +36.9853  -023.2416   +43  123  -64 01:04:05   +35.9355  -025.3767   +42  121  -65 01:04:15   +34.8880  -027.5382   +41  118  -66 01:04:25   +33.8417  -029.7352   +40  115  -66 01:04:36   +32.7956  -031.9779   +39  113  -66 01:04:46   +31.7481  -034.2783   +37  110  -66 01:04:57   +30.6977  -036.6507   +36  108  -65 01:05:07   +29.6425  -039.1128   +34  105  -65 01:05:17   +28.5802  -041.6876   +32  103  -64 01:05:28   +27.5078  -044.4052   +30  101  -62 01:05:38   +26.4210  -047.3081   +28  099  -61 01:05:49   +25.3140  -050.4597   +25  097  -58 01:05:59   +24.1770  -053.9624   +22  095  -56 01:06:10   +22.9929  -058.0056   +19  092  -52 01:06:20   +21.7220  -063.0280   +14  090  -48 01:06:30   +20.2002  -070.8769   +07  087  -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 --------------------------------------------- +68.4386 +086.6199 +69.9112 +119.4562 +67.5571 +071.9595 +70.6770 +082.9243 +66.3918 +061.5961 +69.6115 +067.8991 +65.1254 +053.4710 +68.2952 +057.2687 +63.8217 +046.7669 +66.8990 +049.0052 +62.5095 +041.0499 +65.4831 +042.2454 +61.2030 +036.0566 +64.0731 +036.5219 +59.9092 +031.6136 +62.6809 +031.5503 +58.6319 +027.6006 +61.3115 +027.1445 +57.3726 +023.9307 +59.9667 +023.1765 +56.1317 +020.5392 +58.6470 +019.5545 +54.9092 +017.3764 +57.3516 +016.2107 +53.7043 +014.4036 +56.0794 +013.0938 +52.5165 +011.5899 +54.8292 +010.1637 +51.3447 +008.9103 +53.5996 +007.3890 +50.1882 +006.3442 +52.3893 +004.7440 +49.0458 +003.8742 +51.1968 +002.2078 +47.9168 +001.4858 +50.0210 -000.2371 +46.8001 -000.8336 +48.8604 -002.6054 +45.6948 -003.0950 +47.7139 -004.9099 +44.6002 -005.3082 +46.5804 -007.1617 +43.5152 -007.4819 +45.4588 -009.3708 +42.4391 -009.6240 +44.3480 -011.5462 +41.3710 -011.7419 +43.2470 -013.6960 +40.3101 -013.8427 +42.1548 -015.8281 +39.2556 -015.9331 +41.0704 -017.9500 +38.2066 -018.0197 +39.9928 -020.0689 +37.1624 -020.1091 +38.9210 -022.1922 +36.1221 -022.2082 +37.8541 -024.3276 +35.0848 -024.3241 +36.7910 -026.4829 +34.0495 -026.4645 +35.7305 -028.6670 +33.0152 -028.6379 +34.6716 -030.8895 +31.9808 -030.8538 +33.6129 -033.1614 +30.9451 -033.1232 +32.5529 -035.4957 +29.9066 -035.4594 +31.4898 -037.9083 +28.8636 -037.8784 +30.4216 -040.4190 +27.8139 -040.4005 +29.3456 -043.0535 +26.7550 -043.0524 +28.2584 -045.8469 +25.6831 -045.8707 +27.1550 -048.8493 +24.5933 -048.9081 +26.0281 -052.1385 +23.4779 -052.2470 +24.8656 -055.8465 +22.3237 -056.0299 +23.6433 -060.2395 +21.1041 -060.5495 +22.2948 -066.0569 +19.7429 -066.6587 +21.4422 -066.3356 Azimuth (Azm) measured from North to East.

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CTU: Cross-track uncertainty (zero means: use the nominal prediction value, see event details below). Offsets and CTU all in mas.