Event between (600181) 11OC61 and star GA0760:26217923 with event index number of 2738123
Geocentric closest approach at 2026/10/14 21:47:24 UTC
J2000 position of star is 22:27:46.9 -13:14:34
Equinox of date position of star is 22:28:57.3 -13:07:47
Stellar brightness G=16.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 83 degrees from the moon.
Moon is 17% illuminated.
TNO apparent brightness V=23.0
TNO is 44.7 AU from the Sun
and 44.0 AU from the Earth.
The TNO is moving 15.4
km/sec on the sky relative to the star, or,
1.7 arcsec/hr.
The 1-sigma error in the time of the event is 752 seconds.
The 1-sigma cross-track error in the shadow position is
4636 km.
The TNO has an absolute magnitude Hv=6.4
Diameter=313.3 km assuming a 5% albedo -- 20.3 sec chord
Diameter=127.9 km assuming a 30% albedo -- 8.3 sec chord
Dynamical classification is CLASSICAL
Star training set for 600181, (2026/10/14 21:47UT) Object RA Dec mag sep mel Fomalhaut 22:59:07.4 -29:28:46 1.2 17.78 82 50 Aqr 22:25:53.0 -13:23:34 5.8 0.86 82 PPM 240361 22:31:27.2 -12:46:38 6.8 0.64 84 PPM 240311 22:29:00.8 -12:55:24 9.2 0.19 83 600181 22:29:12.5 -13:06:20 16.4 83 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 600181, (2026/10/14 21:47UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 17.78 82 50 Aqr 22:24:27.2 -13:31:46 5.8 0.86 82 PPM 240361 22:30:01.8 -12:54:54 6.8 0.64 84 PPM 240311 22:27:35.2 -13:03:39 9.2 0.19 83 600181 22:27:46.9 -13:14:34 16.4 83 Positions are for J2000
Event circumstances last updated at 2022/01/17 23:35:36 UT
Marc W. Buie, Southwest Research Institute