Event between (576162) 12GT41 and star GA0820:20087775 with event index number of 2523004
Geocentric closest approach at 2026/07/11 13:46:11 UTC
J2000 position of star is 19:27:21.6 -06:08:20
Equinox of date position of star is 19:28:34.9 -06:05:29
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 132 degrees from the moon.
Moon is 12% illuminated.
TNO apparent brightness V=22.0
TNO is 18.0 AU from the Sun
and 17.0 AU from the Earth.
The TNO is moving 22.4
km/sec on the sky relative to the star, or,
6.5 arcsec/hr.
The 1-sigma error in the time of the event is 132 seconds.
The 1-sigma cross-track error in the shadow position is
1538 km.
The TNO has an absolute magnitude Hv=9.5
Diameter=73.8 km assuming a 5% albedo -- 3.3 sec chord
Diameter=30.1 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CENTAURR
Star training set for 576162, (2026/07/11 13:46UT) Object RA Dec mag sep mel Antares 16:31:02.3 -26:29:19 0.9 46.94 179 Tarazed 19:47:31.2 +10:40:47 2.7 17.40 119 PPM 202841 19:24:30.3 -07:20:53 6.4 1.65 134 PPM 202916 19:28:45.6 -05:40:44 8.3 0.40 132 PPM 202939 19:29:48.4 -06:05:05 9.1 0.26 132 576162 19:28:46.7 -06:05:01 16.8 132 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, (2026/07/11 13:46UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 46.94 179 Tarazed 19:46:15.6 +10:36:48 2.7 17.40 119 PPM 202841 19:23:04.5 -07:24:03 6.4 1.65 134 PPM 202916 19:27:20.8 -05:44:03 8.3 0.40 132 PPM 202939 19:28:23.3 -06:08:26 9.1 0.26 132 576162 19:27:21.6 -06:08:20 16.8 132 Positions are for J2000
Event circumstances last updated at 2022/11/04 03:57:57 UT
Marc W. Buie, Southwest Research Institute