Event between (468861) 13LU28 and star GA1140:02660016 with event index number of 2655506
Geocentric closest approach at 2025/10/03 21:35:28 UTC
J2000 position of star is 07:01:17.2 +24:53:20
Equinox of date position of star is 07:02:47.0 +24:51:09
Stellar brightness G=16.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 137 degrees from the moon.
Moon is 86% illuminated.
Apparent brightness V=18.4
Object is 9.1 AU from the Sun
and 9.1 AU from the Earth.
Apparent velocity is 12.0
km/sec on the sky relative to the star, or,
6.5 arcsec/hr.
The 1-sigma error in the time of the event is 41 seconds.
The 1-sigma cross-track error in the shadow position is
500 km.
The object has an absolute magnitude Hv=8.3
Diameter=128.2 km assuming a 5% albedo -- 11.1 sec chord
Diameter=52.4 km assuming a 30% albedo -- 4.5 sec chord
Dynamical classification is CENTAURR
Star training set for 468861, (2025/10/03 21:35UT) Object RA Dec mag sep mel Pollux 07:46:53.5 +27:57:43 1.1 10.33 146 Alhena 06:39:12.0 +16:22:30 1.9 10.12 131 42Ome Gem 07:03:58.8 +24:10:35 5.2 0.72 137 PPM 096887 07:02:27.1 +24:26:34 8.5 0.42 136 468861 07:02:51.8 +24:51:02 16.5 137 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 468861, (2025/10/03 21:35UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 10.33 146 Alhena 06:37:42.8 +16:23:56 1.9 10.12 131 42Ome Gem 07:02:24.8 +24:12:55 5.2 0.72 137 PPM 096887 07:00:52.9 +24:28:51 8.5 0.42 136 468861 07:01:17.2 +24:53:20 16.5 137 Positions are for J2000
Event circumstances last updated at 2024/06/18 02:54:33 UT
Marc W. Buie, Southwest Research Institute