Event between (612985) 05JA175 and star GA0720:06020422 with event index number of 2819418
Geocentric closest approach at 2025/04/12 23:13:02 UTC
J2000 position of star is 16:00:44.6 -16:33:21
Equinox of date position of star is 16:02:01.0 -16:37:03
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 39 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=22.9
TNO is 47.0 AU from the Sun
and 46.2 AU from the Earth.
The TNO is moving 19.1
km/sec on the sky relative to the star, or,
2.1 arcsec/hr.
The 1-sigma error in the time of the event is 610 seconds.
The 1-sigma cross-track error in the shadow position is
2902 km.
The TNO has an absolute magnitude Hv=6.1
Diameter=368.1 km assuming a 5% albedo -- 19.3 sec chord
Diameter=150.3 km assuming a 30% albedo -- 7.9 sec chord
Dynamical classification is SCATEXTD
Star training set for 612985, (2025/04/12 23:13UT) Object RA Dec mag sep mel Antares 16:30:57.7 -26:29:09 0.9 11.91 47 8Bet1Sco 16:06:54.7 -19:52:21 2.6 3.44 41 49 Lib 16:01:45.1 -16:36:20 5.5 0.11 39 PPM 231045 16:00:40.0 -16:17:32 8.2 0.49 39 49 Lib 16:01:45.1 -16:36:20 5.5 0.11 39 612985 16:02:11.0 -16:37:32 16.7 40 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 612985, (2025/04/12 23:13UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 11.91 47 8Bet1Sco 16:05:26.2 -19:48:20 2.6 3.44 41 49 Lib 16:00:18.6 -16:32:09 5.5 0.11 39 PPM 231045 15:59:13.7 -16:13:18 8.2 0.49 39 49 Lib 16:00:18.6 -16:32:09 5.5 0.11 39 612985 16:00:44.6 -16:33:21 16.7 39 Positions are for J2000
Event circumstances last updated at 2022/05/04 00:19:21 UT
Marc W. Buie, Southwest Research Institute