Event between (500881) 13JM64 and star GA0740:06941186 with event index number of 2334903
Geocentric closest approach at 2023/03/02 15:36:38 UTC
J2000 position of star is 17:09:07.2 -15:37:35
Equinox of date position of star is 17:10:23.7 -15:39:12
Stellar brightness G=15.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 147 degrees from the moon.
Moon is 80% illuminated.
TNO apparent brightness V=24.5
TNO is 40.8 AU from the Sun
and 40.9 AU from the Earth.
The TNO is moving 9.2
km/sec on the sky relative to the star, or,
1.1 arcsec/hr.
The 1-sigma error in the time of the event is 2477 seconds.
The 1-sigma cross-track error in the shadow position is
3060 km.
The TNO has an absolute magnitude Hv=8.2
Diameter=138.0 km assuming a 5% albedo -- 15.0 sec chord
Diameter=56.4 km assuming a 30% albedo -- 6.1 sec chord
Dynamical classification is SCATNEAR
Star training set for 500881, (2023/03/02 15:37UT) Object RA Dec mag sep mel Antares 16:30:49.9 -26:28:53 0.9 14.22 142 35Eta Oph 17:11:42.5 -15:45:07 2.6 0.32 147 PPM 232829 17:16:39.4 -14:36:32 5.9 1.83 148 PPM 232639 17:09:05.7 -16:07:18 6.9 0.57 147 PPM 232679 17:10:42.2 -15:51:39 9.5 0.22 147 500881 17:10:26.9 -15:39:16 15.5 147 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 500881, (2023/03/02 15:37UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 14.22 142 35Eta Oph 17:10:22.7 -15:43:29 2.6 0.32 147 PPM 232829 17:15:20.3 -14:35:03 5.9 1.83 148 PPM 232639 17:07:45.8 -16:05:35 6.9 0.57 147 PPM 232679 17:09:22.4 -15:49:59 9.5 0.22 147 500881 17:09:07.2 -15:37:35 15.5 147 Positions are for J2000
Event circumstances last updated at 2022/04/02 01:16:55 UT
Marc W. Buie, Southwest Research Institute