Event between (386968) 12BR61 and star GA0640:33811030 with event index number of 2216564
Geocentric closest approach at 2028/05/02 21:19:19 UTC
J2000 position of star is 18:39:19.5 -25:08:11
Equinox of date position of star is 18:40:48.7 -25:06:47
Stellar brightness G=13.1,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 135 degrees from the moon.
Moon is 59% illuminated.
Apparent brightness V=21.9
Object is 17.5 AU from the Sun
and 16.9 AU from the Earth.
Apparent velocity is 9.2
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 150 seconds.
The 1-sigma cross-track error in the shadow position is
677 km.
The object has an absolute magnitude Hv=9.3
Diameter=82.8 km assuming a 5% albedo -- 9.0 sec chord
Diameter=33.8 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is CENTAURR
Star training set for 386968, (2028/05/02 21:22UT) Object RA Dec mag sep mel Antares 16:31:09.0 -26:29:32 0.9 29.20 106 Nunki 18:57:01.2 -26:15:32 2.0 3.77 139 PPM 268836 18:46:34.1 -24:58:48 5.9 1.25 137 PPM 268687 18:40:00.1 -25:23:42 8.1 0.37 135 PPM 268729 18:42:10.9 -24:58:03 9.5 0.29 136 386968 18:41:04.1 -25:06:32 13.1 136 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, (2028/05/02 21:22UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 29.20 106 Nunki 18:55:15.9 -26:17:49 2.0 3.77 139 PPM 268836 18:44:49.6 -25:00:40 5.9 1.25 137 PPM 268687 18:38:15.3 -25:25:18 8.1 0.37 135 PPM 268729 18:40:26.4 -24:59:45 9.5 0.29 136 386968 18:39:19.5 -25:08:11 13.1 135 Positions are for J2000
Event circumstances last updated at 2024/03/07 04:23:47 UT
Marc W. Buie, Southwest Research Institute