Event between (310071) 10KR59 and star GA0580:10115009 with event index number of 2187262
Geocentric closest approach at 2025/06/03 19:44:27 UTC
J2000 position of star is 16:34:31.2 -31:02:10
Equinox of date position of star is 16:36:03.7 -31:05:05
Stellar brightness G=16.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 81 degrees from the moon.
Moon is 57% illuminated.
Apparent brightness V=21.2
Object is 22.0 AU from the Sun
and 21.0 AU from the Earth.
Apparent velocity is 23.6
km/sec on the sky relative to the star, or,
5.6 arcsec/hr.
The 1-sigma error in the time of the event is 53 seconds.
The 1-sigma cross-track error in the shadow position is
918 km.
The object has an absolute magnitude Hv=7.8
Diameter=163.7 km assuming a 5% albedo -- 6.9 sec chord
Diameter=66.8 km assuming a 30% albedo -- 2.8 sec chord
Dynamical classification is CENTAURR
Star training set for 310071, (2025/06/03 19:44UT) Object RA Dec mag sep mel Antares 16:30:58.2 -26:29:10 0.9 4.74 79 23Tau Sco 16:37:28.2 -28:15:59 2.8 2.84 81 PPM 265498 16:26:15.8 -29:45:38 5.2 2.51 78 PPM 295197 16:35:48.3 -31:20:10 8.4 0.26 81 PPM 295202 16:36:09.3 -31:03:56 9.6 0.02 81 310071 16:36:08.4 -31:05:14 16.5 81 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 310071, (2025/06/03 19:44UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 4.74 79 23Tau Sco 16:35:52.9 -28:12:58 2.8 2.84 81 PPM 265498 16:24:39.9 -29:42:14 5.2 2.51 78 PPM 295197 16:34:10.9 -31:17:06 8.4 0.26 81 PPM 295202 16:34:32.1 -31:00:52 9.6 0.02 81 310071 16:34:31.2 -31:02:10 16.5 81 Positions are for J2000
Event circumstances last updated at 2024/03/04 05:32:51 UT
Marc W. Buie, Southwest Research Institute