Event between (386968) 12BR61 and star GA0640:33230675 with event index number of 2216500
Geocentric closest approach at 2028/03/04 06:47:22 UTC
J2000 position of star is 18:36:47.0 -25:03:24
Equinox of date position of star is 18:38:16.2 -25:02:05
Stellar brightness G=16.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 155 degrees from the moon.
Moon is 49% illuminated.
Apparent brightness V=22.0
Object is 17.4 AU from the Sun
and 17.8 AU from the Earth.
Apparent velocity is 19.7
km/sec on the sky relative to the star, or,
5.5 arcsec/hr.
The 1-sigma error in the time of the event is 70 seconds.
The 1-sigma cross-track error in the shadow position is
650 km.
The object has an absolute magnitude Hv=9.3
Diameter=82.8 km assuming a 5% albedo -- 4.2 sec chord
Diameter=33.8 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
Star training set for 386968, (2028/03/04 06:46UT) Object RA Dec mag sep mel Antares 16:31:08.4 -26:29:31 0.9 28.64 177 Nunki 18:57:00.6 -26:15:32 2.0 4.34 151 PPM 268694 18:40:13.5 -23:28:42 6.3 1.60 154 PPM 268687 18:39:59.5 -25:23:42 8.1 0.49 154 PPM 268645 18:38:20.4 -25:17:17 9.0 0.26 155 386968 18:38:31.0 -25:01:52 16.1 154 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, (2028/03/04 06:46UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 28.64 177 Nunki 18:55:15.9 -26:17:49 2.0 4.34 151 PPM 268694 18:38:30.7 -23:30:18 6.3 1.60 154 PPM 268687 18:38:15.3 -25:25:18 8.1 0.49 154 PPM 268645 18:36:36.2 -25:18:48 9.0 0.26 155 386968 18:36:47.0 -25:03:24 16.1 155 Positions are for J2000
Event circumstances last updated at 2024/03/07 04:16:47 UT
Marc W. Buie, Southwest Research Institute