Event between (500838) 13GV137 and star GA0720:05404349 with event index number of 2328997
Geocentric closest approach at 2024/01/30 21:44:49 UTC
J2000 position of star is 15:07:41.0 -16:19:53
Equinox of date position of star is 15:08:56.1 -16:24:58
Stellar brightness G=15.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 42 degrees from the moon.
Moon is 78% illuminated.
TNO apparent brightness V=23.6
TNO is 46.1 AU from the Sun
and 46.2 AU from the Earth.
The TNO is moving 9.2
km/sec on the sky relative to the star, or,
1.0 arcsec/hr.
The 1-sigma error in the time of the event is 528 seconds.
The 1-sigma cross-track error in the shadow position is
2367 km.
The TNO has an absolute magnitude Hv=6.8
Diameter=263.0 km assuming a 5% albedo -- 28.1 sec chord
Diameter=107.4 km assuming a 30% albedo -- 11.5 sec chord
Dynamical classification is CLASSICAL
Star training set for 500838, (2024/01/30 21:01UT) Object RA Dec mag sep mel Antares 16:30:53.3 -26:29:00 0.9 21.50 64 27Bet Lib 15:18:18.4 -09:28:13 2.6 7.31 43 21Nu Lib 15:07:58.5 -16:20:55 5.2 0.26 42 PPM 229767 15:08:10.0 -16:34:34 6.6 0.26 43 PPM 229786 15:08:50.9 -16:29:49 9.0 0.09 43 500838 15:09:02.0 -16:25:22 15.5 43 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 500838, (2024/01/30 21:01UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 21.50 64 27Bet Lib 15:17:00.3 -09:22:59 2.6 7.31 43 21Nu Lib 15:06:37.6 -16:15:25 5.2 0.26 42 PPM 229767 15:06:49.0 -16:29:04 6.6 0.26 43 PPM 229786 15:07:29.9 -16:24:21 9.0 0.09 43 500838 15:07:41.0 -16:19:53 15.5 43 Positions are for J2000
Event circumstances last updated at 2022/05/03 01:57:57 UT
Marc W. Buie, Southwest Research Institute