Event between (386968) 12BR61 and star GA0640:09003994 with event index number of 2212304
Geocentric closest approach at 2024/05/14 00:12:03 UTC
J2000 position of star is 16:52:53.8 -24:11:42
Equinox of date position of star is 16:54:22.0 -24:14:00
Stellar brightness G=15.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 128 degrees from the moon.
Moon is 36% illuminated.
Apparent brightness V=21.0
Object is 14.8 AU from the Sun
and 13.8 AU from the Earth.
Apparent velocity is 19.1
km/sec on the sky relative to the star, or,
6.9 arcsec/hr.
The 1-sigma error in the time of the event is 35 seconds.
The 1-sigma cross-track error in the shadow position is
509 km.
The object has an absolute magnitude Hv=9.3
Diameter=82.8 km assuming a 5% albedo -- 4.4 sec chord
Diameter=33.8 km assuming a 30% albedo -- 1.8 sec chord
Dynamical classification is CENTAURR
Star training set for 386968, (2024/05/14 00:13UT) Object RA Dec mag sep mel Antares 16:30:54.3 -26:29:02 0.9 5.76 123 23Tau Sco 16:37:24.2 -28:15:52 2.8 5.54 125 26 Oph 17:01:39.3 -25:01:27 5.8 1.83 129 PPM 266130 16:56:26.4 -24:32:45 8.2 0.56 128 PPM 266081 16:54:26.2 -24:13:11 9.5 0.02 128 386968 16:54:22.8 -24:14:01 15.7 128 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, (2024/05/14 00:13UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 5.76 123 23Tau Sco 16:35:52.9 -28:12:58 2.8 5.54 125 26 Oph 17:00:09.6 -24:59:22 5.8 1.83 129 PPM 266130 16:54:57.2 -24:30:30 8.2 0.56 128 PPM 266081 16:52:57.2 -24:10:51 9.5 0.02 128 386968 16:52:53.8 -24:11:42 15.7 128 Positions are for J2000
Event circumstances last updated at 2024/03/04 05:25:40 UT
Marc W. Buie, Southwest Research Institute