Event between (523800) 17KZ31 and star GA1120:03090351 with event index number of 2432037
Geocentric closest approach at 2024/03/02 13:38:58 UTC
J2000 position of star is 08:52:19.5 +22:25:37
Equinox of date position of star is 08:53:36.9 +22:20:31
Stellar brightness G=16.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 111 degrees from the moon.
Moon is 61% illuminated.
TNO apparent brightness V=22.4
TNO is 16.0 AU from the Sun
and 15.2 AU from the Earth.
The TNO is moving 33.2
km/sec on the sky relative to the star, or,
10.9 arcsec/hr.
The 1-sigma error in the time of the event is 45 seconds.
The 1-sigma cross-track error in the shadow position is
1205 km.
The TNO has an absolute magnitude Hv=10.3
Diameter=51.3 km assuming a 5% albedo -- 1.6 sec chord
Diameter=20.9 km assuming a 30% albedo -- 0.6 sec chord
Dynamical classification is CENTAURR
Star training set for 523800, (2024/03/02 13:40UT) Object RA Dec mag sep mel Pollux 07:46:47.6 +27:57:57 1.1 16.14 127 43Gam Cnc 08:44:40.9 +21:22:48 4.7 2.31 112 PPM 099139 08:55:42.4 +22:07:01 8.3 0.51 110 PPM 099136 08:55:27.0 +22:12:38 9.7 0.42 110 PPM 099116 08:53:59.6 +22:17:28 10.8 0.08 111 523800 08:53:43.5 +22:20:05 16.4 110 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 523800, (2024/03/02 13:40UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 16.14 127 43Gam Cnc 08:43:17.0 +21:28:06 4.7 2.31 112 PPM 099139 08:54:18.5 +22:12:36 8.3 0.51 110 PPM 099136 08:54:03.1 +22:18:13 9.7 0.42 110 PPM 099116 08:52:35.6 +22:23:00 10.8 0.08 111 523800 08:52:19.5 +22:25:37 16.4 111 Positions are for J2000
Event circumstances last updated at 2022/04/16 00:20:58 UT
Marc W. Buie, Southwest Research Institute