Event between (523701) 14HT199 and star GA0660:07748512 with event index number of 2333885
Geocentric closest approach at 2026/09/08 22:44:35 UTC
J2000 position of star is 16:42:42.9 -22:24:32
Equinox of date position of star is 16:44:02.1 -22:26:57
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 114 degrees from the moon.
Moon is 6% illuminated.
TNO apparent brightness V=22.3
TNO is 29.9 AU from the Sun
and 29.9 AU from the Earth.
The TNO is moving 8.4
km/sec on the sky relative to the star, or,
1.4 arcsec/hr.
The 1-sigma error in the time of the event is 488 seconds.
The 1-sigma cross-track error in the shadow position is
1949 km.
The TNO has an absolute magnitude Hv=7.3
Diameter=204.2 km assuming a 5% albedo -- 24.4 sec chord
Diameter=83.4 km assuming a 30% albedo -- 10.0 sec chord
Dynamical classification is 3:2E
Star training set for 523701, (2026/09/08 22:45UT) Object RA Dec mag sep mel Antares 16:31:02.9 -26:29:20 0.9 5.04 112 23Tau Sco 16:37:32.9 -28:16:08 2.8 6.01 114 PPM 232040 16:43:28.0 -19:58:24 5.8 2.49 114 PPM 265879 16:45:53.7 -22:34:17 7.9 0.38 115 PPM 265844 16:44:45.6 -22:23:35 9.8 0.12 115 523701 16:44:18.8 -22:27:28 16.6 115 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 523701, (2026/09/08 22:45UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 5.04 112 23Tau Sco 16:35:52.9 -28:12:58 2.8 6.01 114 PPM 232040 16:41:53.8 -19:55:27 5.8 2.49 114 PPM 265879 16:44:17.7 -22:31:25 7.9 0.38 115 PPM 265844 16:43:09.6 -22:20:41 9.8 0.12 115 523701 16:42:42.9 -22:24:32 16.6 114 Positions are for J2000
Event circumstances last updated at 2022/01/16 23:42:13 UT
Marc W. Buie, Southwest Research Institute