Event between (523704) 14HB200 and star GA0660:06665428 with event index number of 2263655
Geocentric closest approach at 2025/09/14 19:23:55 UTC
J2000 position of star is 15:42:01.8 -22:53:20
Equinox of date position of star is 15:43:19.4 -22:57:27
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 152 degrees from the moon.
Moon is 46% illuminated.
TNO apparent brightness V=22.5
TNO is 30.1 AU from the Sun
and 30.5 AU from the Earth.
The TNO is moving 18.1
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 170 seconds.
The 1-sigma cross-track error in the shadow position is
1678 km.
The TNO has an absolute magnitude Hv=7.5
Diameter=187.1 km assuming a 5% albedo -- 10.3 sec chord
Diameter=76.4 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is 3:2E
Star training set for 523704, (2025/09/14 19:24UT) Object RA Dec mag sep mel Antares 16:30:59.3 -26:29:12 0.9 11.33 163 7Del Sco 16:01:51.5 -22:41:34 2.3 4.23 155 PPM 264469 15:39:19.0 -23:13:30 5.8 1.01 151 PPM 264578 15:43:24.4 -23:21:10 8.1 0.38 152 PPM 264582 15:43:35.5 -23:07:02 8.6 0.15 152 523704 15:43:32.9 -22:58:10 16.9 152 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 523704, (2025/09/14 19:24UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 11.33 163 7Del Sco 16:00:20.0 -22:37:19 2.3 4.23 155 PPM 264469 15:37:48.0 -23:08:32 5.8 1.01 151 PPM 264578 15:41:53.2 -23:16:20 8.1 0.38 152 PPM 264582 15:42:04.4 -23:02:12 8.6 0.15 152 523704 15:42:01.8 -22:53:20 16.9 151 Positions are for J2000
Event circumstances last updated at 2021/11/27 00:12:14 UT
Marc W. Buie, Southwest Research Institute