Event between (310071) 10KR59 and star GA0580:09724916 with event index number of 2187287
Geocentric closest approach at 2025/07/16 20:05:54 UTC
J2000 position of star is 16:28:08.1 -30:50:04
Equinox of date position of star is 16:29:40.2 -30:53:12
Stellar brightness G=16.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 119 degrees from the moon.
Moon is 64% illuminated.
Apparent brightness V=21.4
Object is 22.1 AU from the Sun
and 21.4 AU from the Earth.
Apparent velocity is 15.2
km/sec on the sky relative to the star, or,
3.5 arcsec/hr.
The 1-sigma error in the time of the event is 79 seconds.
The 1-sigma cross-track error in the shadow position is
948 km.
The object has an absolute magnitude Hv=7.8
Diameter=163.7 km assuming a 5% albedo -- 10.8 sec chord
Diameter=66.8 km assuming a 30% albedo -- 4.4 sec chord
Dynamical classification is CENTAURR
Star training set for 310071, (2025/07/16 20:05UT) Object RA Dec mag sep mel Antares 16:30:58.7 -26:29:11 0.9 4.41 119 23Tau Sco 16:37:28.6 -28:16:00 2.8 3.11 118 PPM 265498 16:26:16.3 -29:45:39 5.2 1.36 120 PPM 295050 16:27:39.5 -31:17:34 8.5 0.60 119 PPM 295082 16:29:38.6 -31:04:56 9.5 0.19 119 PPM 295068 16:28:56.4 -30:54:57 10.1 0.18 119 310071 16:29:45.4 -30:53:22 16.0 118 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, (2025/07/16 20:05UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 4.41 119 23Tau Sco 16:35:52.9 -28:12:58 2.8 3.11 118 PPM 265498 16:24:39.9 -29:42:14 5.2 1.36 120 PPM 295050 16:26:01.9 -31:14:11 8.5 0.60 119 PPM 295082 16:28:01.1 -31:01:38 9.5 0.19 119 PPM 295068 16:27:19.1 -30:51:38 10.1 0.18 119 310071 16:28:08.1 -30:50:04 16.0 119 Positions are for J2000
Event circumstances last updated at 2024/03/04 05:35:41 UT
Marc W. Buie, Southwest Research Institute