Event between (386968) 12BR61 and star GA0640:15362204 with event index number of 2212726
Geocentric closest approach at 2025/03/04 19:13:36 UTC
J2000 position of star is 17:25:57.9 -24:51:08
Equinox of date position of star is 17:27:27.0 -24:52:18
Stellar brightness G=16.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 147 degrees from the moon.
Moon is 29% illuminated.
Apparent brightness V=21.5
Object is 15.3 AU from the Sun
and 15.4 AU from the Earth.
Apparent velocity is 12.5
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 66 seconds.
The 1-sigma cross-track error in the shadow position is
561 km.
The object has an absolute magnitude Hv=9.3
Diameter=82.8 km assuming a 5% albedo -- 6.6 sec chord
Diameter=33.8 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is CENTAURR
Star training set for 386968, (2025/03/04 19:12UT) Object RA Dec mag sep mel Antares 16:30:57.3 -26:29:08 0.9 12.84 160 35Eta Oph 17:11:49.4 -15:45:15 2.6 9.83 150 PPM 266836 17:26:38.7 -24:15:52 6.4 0.64 148 PPM 266839 17:26:43.4 -24:37:33 8.5 0.30 148 PPM 266868 17:28:11.3 -24:42:28 10.0 0.23 147 386968 17:27:30.7 -24:52:21 16.0 147 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 386968, (2025/03/04 19:12UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 12.84 160 35Eta Oph 17:10:22.7 -15:43:29 2.6 9.83 150 PPM 266836 17:25:06.3 -24:14:37 6.4 0.64 148 PPM 266839 17:25:10.8 -24:36:19 8.5 0.30 148 PPM 266868 17:26:38.6 -24:41:17 10.0 0.23 147 386968 17:25:57.9 -24:51:08 16.0 147 Positions are for J2000
Event circumstances last updated at 2024/03/04 05:31:00 UT
Marc W. Buie, Southwest Research Institute