Event between (612218) 01KD77 and star GA0680:40762409 with event index number of 2810992
Geocentric closest approach at 2025/11/05 10:18:32 UTC
J2000 position of star is 19:26:21.9 -20:54:36
Equinox of date position of star is 19:27:41.2 -20:51:50
Stellar brightness G=16.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 111 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=21.5
TNO is 37.1 AU from the Sun
and 37.5 AU from the Earth.
The TNO is moving 17.1
km/sec on the sky relative to the star, or,
2.3 arcsec/hr.
The 1-sigma error in the time of the event is 1536 seconds.
The 1-sigma cross-track error in the shadow position is
5345 km.
The TNO has an absolute magnitude Hv=5.6
Diameter=455.0 km assuming a 5% albedo -- 26.7 sec chord
Diameter=185.8 km assuming a 30% albedo -- 10.9 sec chord
Dynamical classification is 3:2E
Star training set for 612218, (2025/11/05 10:19UT) Object RA Dec mag sep mel Antares 16:30:59.8 -26:29:13 0.9 40.70 152 Nunki 18:56:52.0 -26:15:44 2.0 8.93 119 50 Sgr 19:27:51.5 -21:43:24 5.6 0.87 111 PPM 269786 19:27:59.6 -21:11:34 7.3 0.34 111 PPM 269787 19:28:05.2 -20:32:05 8.7 0.33 111 612218 19:27:53.7 -20:51:24 16.5 111 Positions are for equinox of date
Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.
Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.
Star training set for 612218, (2025/11/05 10:19UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 40.70 152 Nunki 18:55:15.9 -26:17:49 2.0 8.93 119 50 Sgr 19:26:19.2 -21:46:36 5.6 0.87 111 PPM 269786 19:26:27.7 -21:14:46 7.3 0.34 111 PPM 269787 19:26:33.7 -20:35:18 8.7 0.33 111 612218 19:26:21.9 -20:54:36 16.5 111 Positions are for J2000
Event circumstances last updated at 2022/05/04 23:03:21 UT
Marc W. Buie, Southwest Research Institute