Event between (612161) 00KK4 and star GA0820:08539048 with event index number of 2807834
Geocentric closest approach at 2026/05/30 15:09:32 UTC
J2000 position of star is 18:11:14.9 -07:28:14
Equinox of date position of star is 18:12:27.5 -07:27:51
Stellar brightness G=17.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 38 degrees from the moon.
Moon is 99% illuminated.
TNO apparent brightness V=22.7
TNO is 44.7 AU from the Sun
and 43.8 AU from the Earth.
The TNO is moving 22.7
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 601 seconds.
The 1-sigma cross-track error in the shadow position is
2917 km.
The TNO has an absolute magnitude Hv=6.2
Diameter=338.9 km assuming a 5% albedo -- 14.9 sec chord
Diameter=138.3 km assuming a 30% albedo -- 6.1 sec chord
Dynamical classification is SCATEXTD
Star training set for 612161, (2026/05/30 15:10UT) Object RA Dec mag sep mel Antares 16:31:01.9 -26:29:18 0.9 30.74 9 60Bet Oph 17:44:46.7 +04:33:29 2.8 13.89 40 PPM 201392 18:07:33.7 -08:19:12 6.1 1.53 36 PPM 201498 18:13:49.7 -07:17:20 8.0 0.33 38 PPM 201467 18:11:45.9 -07:21:40 9.5 0.25 38 612161 18:12:40.7 -07:27:47 17.0 38 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 612161, (2026/05/30 15:10UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 30.74 9 60Bet Oph 17:43:28.3 +04:34:06 2.8 13.89 40 PPM 201392 18:06:07.4 -08:19:27 6.1 1.53 36 PPM 201498 18:12:24.0 -07:17:50 8.0 0.33 38 PPM 201467 18:10:20.1 -07:22:05 9.5 0.25 38 612161 18:11:14.9 -07:28:14 17.0 38 Positions are for J2000
Event circumstances last updated at 2022/05/04 23:35:14 UT
Marc W. Buie, Southwest Research Institute