Event between (386968) 12BR61 and star GA0640:15738123 with event index number of 2212779
Geocentric closest approach at 2025/04/08 12:36:15 UTC
J2000 position of star is 17:27:10.2 -24:56:40
Equinox of date position of star is 17:28:39.5 -24:57:48
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 113 degrees from the moon.
Moon is 83% illuminated.
Apparent brightness V=21.4
Object is 15.4 AU from the Sun
and 14.9 AU from the Earth.
Apparent velocity is 4.9
km/sec on the sky relative to the star, or,
1.6 arcsec/hr.
The 1-sigma error in the time of the event is 166 seconds.
The 1-sigma cross-track error in the shadow position is
552 km.
The object has an absolute magnitude Hv=9.3
Diameter=82.8 km assuming a 5% albedo -- 16.9 sec chord
Diameter=33.8 km assuming a 30% albedo -- 6.9 sec chord
Dynamical classification is CENTAURR
Star training set for 386968, (2025/04/08 12:39UT) Object RA Dec mag sep mel Antares 16:30:57.7 -26:29:09 0.9 13.09 100 35Eta Oph 17:11:49.7 -15:45:16 2.6 10.02 108 44 Oph 17:27:54.9 -24:11:46 4.2 0.79 113 PPM 266839 17:26:43.8 -24:37:34 8.5 0.57 113 PPM 266898 17:29:26.6 -25:09:35 9.7 0.25 113 386968 17:28:43.5 -24:57:51 16.9 113 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, (2025/04/08 12:39UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 13.09 100 35Eta Oph 17:10:22.7 -15:43:29 2.6 10.02 108 44 Oph 17:26:22.2 -24:10:34 4.2 0.79 113 PPM 266839 17:25:10.8 -24:36:19 8.5 0.57 113 PPM 266898 17:27:53.2 -25:08:26 9.7 0.25 113 386968 17:27:10.2 -24:56:40 16.9 113 Positions are for J2000
Event circumstances last updated at 2024/03/04 05:31:41 UT
Marc W. Buie, Southwest Research Institute