Event between (459865) 13XZ8 and star GA0580:09333109 with event index number of 2281848
Geocentric closest approach at 2024/04/18 04:47:59 UTC
J2000 position of star is 16:20:19.3 -31:18:54
Equinox of date position of star is 16:21:51.1 -31:22:16
Stellar brightness G=15.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 104 degrees from the moon.
Moon is 73% illuminated.
Apparent brightness V=19.3
Object is 9.2 AU from the Sun
and 8.5 AU from the Earth.
Apparent velocity is 12.4
km/sec on the sky relative to the star, or,
7.2 arcsec/hr.
The 1-sigma error in the time of the event is 43 seconds.
The 1-sigma cross-track error in the shadow position is
329 km.
The object has an absolute magnitude Hv=9.5
Diameter=70.8 km assuming a 5% albedo -- 6.1 sec chord
Diameter=28.9 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is CENTAURR
Star training set for 459865, (2024/04/18 04:51UT) Object RA Dec mag sep mel Antares 16:30:54.1 -26:29:02 0.9 5.27 105 23Tau Sco 16:37:24.0 -28:15:51 2.8 4.58 106 PPM 265498 16:26:11.6 -29:45:29 5.2 1.86 104 PPM 295034 16:26:37.6 -31:28:34 7.6 1.02 105 PPM 294950 16:22:13.5 -31:37:14 10.0 0.26 104 PPM 294942 16:21:52.2 -31:29:55 10.3 0.13 104 459865 16:21:52.0 -31:22:18 15.5 104 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, (2024/04/18 04:51UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 5.27 105 23Tau Sco 16:35:52.9 -28:12:58 2.8 4.58 106 PPM 265498 16:24:39.9 -29:42:14 5.2 1.86 104 PPM 295034 16:25:04.7 -31:25:20 7.6 1.02 105 PPM 294950 16:20:40.7 -31:33:51 10.0 0.26 104 PPM 294942 16:20:19.5 -31:26:32 10.3 0.13 104 459865 16:20:19.3 -31:18:54 15.5 104 Positions are for J2000
Event circumstances last updated at 2024/01/29 04:20:32 UT
Marc W. Buie, Southwest Research Institute