Event between (576256) 12JH67 and star GA0620:07632902 with event index number of 2523985
Geocentric closest approach at 2026/04/03 18:42:41 UTC
J2000 position of star is 15:53:28.0 -27:07:10
Equinox of date position of star is 15:54:48.6 -27:11:01
Stellar brightness G=16.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 29 degrees from the moon.
Moon is 97% illuminated.
TNO apparent brightness V=22.4
TNO is 48.3 AU from the Sun
and 47.6 AU from the Earth.
The TNO is moving 15.6
km/sec on the sky relative to the star, or,
1.6 arcsec/hr.
The 1-sigma error in the time of the event is 581 seconds.
The 1-sigma cross-track error in the shadow position is
2840 km.
The TNO has an absolute magnitude Hv=5.5
Diameter=476.4 km assuming a 5% albedo -- 30.6 sec chord
Diameter=194.5 km assuming a 30% albedo -- 12.5 sec chord
Dynamical classification is 2:1E
Star training set for 576256, (2026/04/03 18:43UT) Object RA Dec mag sep mel Antares 16:31:01.3 -26:29:17 0.9 8.05 36 7Del Sco 16:01:53.4 -22:41:39 2.3 4.76 29 PPM 264761 15:52:10.2 -26:22:03 6.5 1.05 28 PPM 264837 15:56:06.4 -27:24:52 6.7 0.32 29 PPM 264832 15:55:42.2 -27:19:40 10.0 0.19 29 576256 15:55:04.1 -27:11:45 16.5 29 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 576256, (2026/04/03 18:43UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 8.05 36 7Del Sco 16:00:20.0 -22:37:19 2.3 4.76 29 PPM 264761 15:50:34.7 -26:17:23 6.5 1.05 28 PPM 264837 15:54:30.1 -27:20:20 6.7 0.32 29 PPM 264832 15:54:06.0 -27:15:07 10.0 0.19 29 576256 15:53:28.0 -27:07:10 16.5 29 Positions are for J2000
Event circumstances last updated at 2022/01/12 00:21:19 UT
Marc W. Buie, Southwest Research Institute