Event between (386968) 12BR61 and star GA0640:11296434 with event index number of 2213053
Geocentric closest approach at 2025/09/15 05:48:15 UTC
J2000 position of star is 17:08:07.1 -24:37:28
Equinox of date position of star is 17:09:35.9 -24:39:15
Stellar brightness G=14.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 165 degrees from the moon.
Moon is 41% illuminated.
Apparent brightness V=21.6
Object is 15.7 AU from the Sun
and 15.7 AU from the Earth.
Apparent velocity is 10.6
km/sec on the sky relative to the star, or,
3.4 arcsec/hr.
The 1-sigma error in the time of the event is 75 seconds.
The 1-sigma cross-track error in the shadow position is
575 km.
The object has an absolute magnitude Hv=9.3
Diameter=82.8 km assuming a 5% albedo -- 7.8 sec chord
Diameter=33.8 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is CENTAURR
Star training set for 386968, (2025/09/15 05:47UT) Object RA Dec mag sep mel Antares 16:30:59.3 -26:29:12 0.9 8.92 157 23Tau Sco 16:37:29.2 -28:16:01 2.8 8.06 158 26 Oph 17:01:44.2 -25:01:33 5.8 1.84 163 PPM 266438 17:09:30.9 -25:01:48 7.2 0.38 165 PPM 266446 17:09:47.4 -24:29:52 9.0 0.16 165 386968 17:09:41.6 -24:39:22 14.8 165 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, (2025/09/15 05:47UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 8.92 157 23Tau Sco 16:35:52.9 -28:12:58 2.8 8.06 158 26 Oph 17:00:09.6 -24:59:22 5.8 1.84 163 PPM 266438 17:07:56.2 -24:59:54 7.2 0.38 165 PPM 266446 17:08:13.1 -24:27:58 9.0 0.16 165 386968 17:08:07.1 -24:37:28 14.8 165 Positions are for J2000
Event circumstances last updated at 2024/03/04 05:36:09 UT
Marc W. Buie, Southwest Research Institute