Event between (576162) 12GT41 and star GA0840:16087354 with event index number of 2522412
Geocentric closest approach at 2025/06/26 20:18:35 UTC
J2000 position of star is 19:08:06.7 -04:14:16
Equinox of date position of star is 19:09:19.0 -04:12:00
Stellar brightness G=16.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 157 degrees from the moon.
Moon is 3% illuminated.
TNO apparent brightness V=22.0
TNO is 17.6 AU from the Sun
and 16.7 AU from the Earth.
The TNO is moving 21.4
km/sec on the sky relative to the star, or,
6.4 arcsec/hr.
The 1-sigma error in the time of the event is 109 seconds.
The 1-sigma cross-track error in the shadow position is
1047 km.
The TNO has an absolute magnitude Hv=9.5
Diameter=73.8 km assuming a 5% albedo -- 3.5 sec chord
Diameter=30.1 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CENTAURR
Star training set for 576162, (2025/06/26 20:20UT) Object RA Dec mag sep mel Antares 16:30:58.5 -26:29:11 0.9 43.93 136 Tarazed 19:47:28.3 +10:40:37 2.7 17.63 144 16Lam Aql 19:07:36.1 -04:50:32 3.4 0.80 157 PPM 202545 19:08:35.5 -04:51:24 8.1 0.70 157 PPM 202558 19:09:02.0 -04:18:21 9.6 0.15 157 576162 19:09:27.4 -04:11:45 16.3 157 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 576162, (2025/06/26 20:20UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 43.93 136 Tarazed 19:46:15.6 +10:36:48 2.7 17.63 144 16Lam Aql 19:06:14.9 -04:52:59 3.4 0.80 157 PPM 202545 19:07:14.3 -04:53:53 8.1 0.70 157 PPM 202558 19:07:41.1 -04:20:51 9.6 0.15 157 576162 19:08:06.7 -04:14:16 16.3 157 Positions are for J2000
Event circumstances last updated at 2022/10/26 03:00:22 UT
Marc W. Buie, Southwest Research Institute