Event between (574398) 10LO33 and star GA0920:17749892 with event index number of 2519273
Geocentric closest approach at 2025/06/22 21:16:38 UTC
J2000 position of star is 21:17:53.5 +03:29:17
Equinox of date position of star is 21:18:59.6 +03:34:51
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 92 degrees from the moon.
Moon is 9% illuminated.
TNO apparent brightness V=20.8
TNO is 15.7 AU from the Sun
and 15.1 AU from the Earth.
The TNO is moving 12.2
km/sec on the sky relative to the star, or,
4.0 arcsec/hr.
The 1-sigma error in the time of the event is 647 seconds.
The 1-sigma cross-track error in the shadow position is
5168 km.
The TNO has an absolute magnitude Hv=8.6
Diameter=116.4 km assuming a 5% albedo -- 9.6 sec chord
Diameter=47.5 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is CENTAURR
Star training set for 574398, (2025/06/22 21:17UT) Object RA Dec mag sep mel Fomalhaut 22:59:03.1 -29:29:12 1.2 40.83 85 Tarazed 19:47:28.2 +10:40:37 2.7 23.81 109 8Alp Equ 21:17:05.8 +05:21:16 3.9 1.83 92 PPM 171626 21:22:39.4 +03:05:00 8.3 1.01 91 PPM 171548 21:19:06.7 +03:41:37 9.1 0.10 92 574398 21:19:10.5 +03:35:46 16.7 92 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 574398, (2025/06/22 21:17UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 40.83 85 Tarazed 19:46:15.6 +10:36:48 2.7 23.81 109 8Alp Equ 21:15:49.5 +05:14:50 3.9 1.83 92 PPM 171626 21:21:22.2 +02:58:26 8.3 1.01 91 PPM 171548 21:17:49.8 +03:35:08 9.1 0.10 92 574398 21:17:53.5 +03:29:17 16.7 92 Positions are for J2000
Event circumstances last updated at 2021/11/10 00:15:48 UT
Marc W. Buie, Southwest Research Institute