Event between (386968) 12BR61 and star GA0640:11263332 with event index number of 2213049
Geocentric closest approach at 2025/09/13 08:43:10 UTC
J2000 position of star is 17:07:56.5 -24:37:25
Equinox of date position of star is 17:09:25.3 -24:39:12
Stellar brightness G=14.3,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 168 degrees from the moon.
Moon is 62% illuminated.
Apparent brightness V=21.6
Object is 15.7 AU from the Sun
and 15.7 AU from the Earth.
Apparent velocity is 9.7
km/sec on the sky relative to the star, or,
3.1 arcsec/hr.
The 1-sigma error in the time of the event is 82 seconds.
The 1-sigma cross-track error in the shadow position is
572 km.
The object has an absolute magnitude Hv=9.3
Diameter=82.8 km assuming a 5% albedo -- 8.6 sec chord
Diameter=33.8 km assuming a 30% albedo -- 3.5 sec chord
Dynamical classification is CENTAURR
Star training set for 386968, (2025/09/13 08:42UT) Object RA Dec mag sep mel Antares 16:30:59.3 -26:29:12 0.9 8.88 177 23Tau Sco 16:37:29.2 -28:16:01 2.8 8.02 175 26 Oph 17:01:44.2 -25:01:33 5.8 1.80 170 PPM 266438 17:09:30.9 -25:01:48 7.2 0.37 168 PPM 266421 17:08:56.6 -24:39:32 9.4 0.13 168 386968 17:09:30.9 -24:39:19 14.3 168 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, (2025/09/13 08:42UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 8.88 177 23Tau Sco 16:35:52.9 -28:12:58 2.8 8.02 175 26 Oph 17:00:09.6 -24:59:22 5.8 1.80 170 PPM 266438 17:07:56.2 -24:59:54 7.2 0.37 168 PPM 266421 17:07:22.2 -24:37:36 9.4 0.13 168 386968 17:07:56.5 -24:37:25 14.3 168 Positions are for J2000
Event circumstances last updated at 2024/03/04 05:36:07 UT
Marc W. Buie, Southwest Research Institute