Event between (386968) 12BR61 and star GA0640:28368112 with event index number of 2216988
Geocentric closest approach at 2028/08/14 09:44:43 UTC
J2000 position of star is 18:22:40.2 -25:22:07
Equinox of date position of star is 18:24:09.8 -25:21:18
Stellar brightness G=17.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 148 degrees from the moon.
Moon is 41% illuminated.
Apparent brightness V=21.9
Object is 17.7 AU from the Sun
and 17.0 AU from the Earth.
Apparent velocity is 12.9
km/sec on the sky relative to the star, or,
3.8 arcsec/hr.
The 1-sigma error in the time of the event is 104 seconds.
The 1-sigma cross-track error in the shadow position is
617 km.
The object has an absolute magnitude Hv=9.3
Diameter=82.8 km assuming a 5% albedo -- 6.4 sec chord
Diameter=33.8 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is CENTAURR
Star training set for 386968, (2028/08/14 09:46UT) Object RA Dec mag sep mel Antares 16:31:10.0 -26:29:34 0.9 25.44 173 Nunki 18:57:02.3 -26:15:30 2.0 7.39 141 PPM 268291 18:23:17.1 -24:53:58 6.0 0.52 148 PPM 268329 18:24:39.7 -25:23:16 9.4 0.06 148 386968 18:24:26.2 -25:21:08 17.0 147 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, (2028/08/14 09:46UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 25.44 173 Nunki 18:55:15.9 -26:17:49 2.0 7.39 141 PPM 268291 18:21:31.4 -24:54:54 6.0 0.52 148 PPM 268329 18:22:53.6 -25:24:16 9.4 0.06 148 386968 18:22:40.2 -25:22:07 17.0 148 Positions are for J2000
Event circumstances last updated at 2024/03/07 04:40:21 UT
Marc W. Buie, Southwest Research Institute