Event between (459865) 13XZ8 and star GA0620:16778133 with event index number of 2282542
Geocentric closest approach at 2025/03/05 22:11:51 UTC
J2000 position of star is 17:22:00.6 -27:36:57
Equinox of date position of star is 17:23:32.7 -27:38:16
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 164 degrees from the moon.
Moon is 42% illuminated.
Apparent brightness V=19.8
Object is 9.7 AU from the Sun
and 9.8 AU from the Earth.
Apparent velocity is 13.1
km/sec on the sky relative to the star, or,
6.6 arcsec/hr.
The 1-sigma error in the time of the event is 51 seconds.
The 1-sigma cross-track error in the shadow position is
404 km.
The object has an absolute magnitude Hv=9.5
Diameter=70.8 km assuming a 5% albedo -- 5.8 sec chord
Diameter=28.9 km assuming a 30% albedo -- 2.4 sec chord
Dynamical classification is CENTAURR
Star training set for 459865, (2025/03/05 22:07UT) Object RA Dec mag sep mel Antares 16:30:57.3 -26:29:08 0.9 11.77 176 26Eps Sco 16:51:48.1 -34:20:11 2.3 9.55 168 43 Oph 17:24:56.8 -28:09:54 5.1 0.61 164 PPM 266726 17:22:40.2 -27:26:28 7.6 0.28 164 PPM 266771 17:24:02.8 -27:48:42 9.7 0.20 164 459865 17:23:35.4 -27:38:18 16.8 164 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, (2025/03/05 22:07UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 11.77 176 26Eps Sco 16:50:08.8 -34:17:41 2.3 9.55 168 43 Oph 17:23:21.6 -28:08:35 5.1 0.61 164 PPM 266726 17:21:05.6 -27:25:05 7.6 0.28 164 PPM 266771 17:22:27.8 -27:47:22 9.7 0.20 164 459865 17:22:00.6 -27:36:57 16.8 164 Positions are for J2000
Event circumstances last updated at 2024/06/13 03:43:19 UT
Marc W. Buie, Southwest Research Institute