Event between (523764) 14WC510 and star GA0920:01596303 with event index number of 2612971
Geocentric closest approach at 2023/02/20 18:45:40 UTC
J2000 position of star is 06:37:06.9 +03:12:11
Equinox of date position of star is 06:38:16.0 +03:10:59
Stellar brightness G=9.4,
use SENSEUP=2 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 117 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=22.1
TNO is 30.0 AU from the Sun
and 29.4 AU from the Earth.
The TNO is moving 15.1
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 103 seconds.
The 1-sigma cross-track error in the shadow position is
1330 km.
The TNO has an absolute magnitude Hv=7.2
Diameter=218.8 km assuming a 5% albedo -- 14.5 sec chord
Diameter=89.3 km assuming a 30% albedo -- 5.9 sec chord
Dynamical classification is 3:2E+6:4II
Star training set for 523764, (2023/02/20 18:45UT) Object RA Dec mag sep mel Betelgeuse 05:56:25.5 +07:24:34 0.4 11.25 108 Alhena 06:39:02.9 +16:22:39 1.9 13.20 120 PPM 150897 06:38:52.9 +02:40:57 6.2 0.52 117 PPM 150937 06:39:46.3 +02:53:53 8.2 0.46 118 PPM 150881 06:38:29.7 +02:58:19 9.2 0.21 117 PPM 150870 06:38:19.5 +03:11:03 10.1 0.00 117 523764 06:38:19.7 +03:10:55 9.4 118 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 523764, (2023/02/20 18:45UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 11.25 108 Alhena 06:37:42.8 +16:23:57 1.9 13.20 120 PPM 150897 06:37:40.3 +02:42:14 6.2 0.52 117 PPM 150937 06:38:33.6 +02:55:12 8.2 0.46 118 PPM 150881 06:37:16.9 +02:59:35 9.2 0.21 117 PPM 150870 06:37:06.6 +03:12:19 10.1 0.00 117 523764 06:37:06.9 +03:12:11 9.4 117 Positions are for J2000
Event circumstances last updated at 2021/12/18 01:59:07 UT
Marc W. Buie, Southwest Research Institute