Event between (523760) 14WQ509 and star GA1200:03097258 with event index number of 2362342
Geocentric closest approach at 2025/12/25 16:40:24 UTC
J2000 position of star is 07:53:49.9 +30:39:49
Equinox of date position of star is 07:55:21.0 +30:35:57
Stellar brightness G=14.2,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 136 degrees from the moon.
Moon is 28% illuminated.
Apparent brightness V=22.1
Object is 42.8 AU from the Sun
and 41.9 AU from the Earth.
Apparent velocity is 24.1
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 184 seconds.
The 1-sigma cross-track error in the shadow position is
1690 km.
The object has an absolute magnitude Hv=5.8
Diameter=411.2 km assuming a 5% albedo -- 17.5 sec chord
Diameter=167.9 km assuming a 30% albedo -- 7.2 sec chord
Dynamical classification is 3:2E
Star training set for 523760, (2025/12/25 17:19UT) Object RA Dec mag sep mel Pollux 07:46:54.3 +27:57:41 1.1 3.23 134 PPM 073167 07:52:42.3 +33:09:58 6.0 2.64 134 PPM 073179 07:53:08.1 +30:27:44 8.2 0.52 135 PPM 073225 07:55:47.1 +30:44:32 9.5 0.16 135 523760 07:55:27.9 +30:35:40 14.2 135 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 523760, (2025/12/25 17:19UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 3.23 134 PPM 073167 07:51:02.4 +33:14:02 6.0 2.64 134 PPM 073179 07:51:30.2 +30:31:49 8.2 0.52 135 PPM 073225 07:54:09.0 +30:48:42 9.5 0.16 135 523760 07:53:49.9 +30:39:49 14.2 135 Positions are for J2000
Event circumstances last updated at 2024/03/04 05:37:37 UT
Marc W. Buie, Southwest Research Institute