Event between (459865) 13XZ8 and star GA0640:09846032 with event index number of 2282931
Geocentric closest approach at 2025/07/15 16:13:20 UTC
J2000 position of star is 16:59:49.3 -25:44:28
Equinox of date position of star is 17:01:19.7 -25:46:34
Stellar brightness G=17.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 97 degrees from the moon.
Moon is 75% illuminated.
Apparent brightness V=19.6
Object is 9.9 AU from the Sun
and 9.1 AU from the Earth.
Apparent velocity is 14.7
km/sec on the sky relative to the star, or,
8.0 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
443 km.
The object has an absolute magnitude Hv=9.5
Diameter=70.8 km assuming a 5% albedo -- 5.2 sec chord
Diameter=28.9 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is CENTAURR
Star training set for 459865, (2025/07/15 16:14UT) Object RA Dec mag sep mel Antares 16:30:58.6 -26:29:11 0.9 6.86 103 23Tau Sco 16:37:28.6 -28:16:00 2.8 5.88 101 26 Oph 17:01:43.6 -25:01:33 5.8 0.76 96 PPM 266202 16:59:51.4 -26:05:46 7.4 0.47 97 PPM 266236 17:01:02.9 -25:44:10 9.2 0.09 97 459865 17:01:23.7 -25:46:39 17.0 96 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 459865, (2025/07/15 16:14UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 6.86 103 23Tau Sco 16:35:52.9 -28:12:58 2.8 5.88 101 26 Oph 17:00:09.6 -24:59:22 5.8 0.76 96 PPM 266202 16:58:16.7 -26:03:32 7.4 0.47 97 PPM 266236 16:59:28.5 -25:41:58 9.2 0.09 97 459865 16:59:49.3 -25:44:28 17.0 96 Positions are for J2000
Event circumstances last updated at 2024/06/13 03:59:04 UT
Marc W. Buie, Southwest Research Institute