Event between (386968) 12BR61 and star GA0640:33847165 with event index number of 2216539
Geocentric closest approach at 2028/03/27 04:06:54 UTC
J2000 position of star is 18:39:29.5 -25:03:38
Equinox of date position of star is 18:40:58.7 -25:02:13
Stellar brightness G=12.7,
use SENSEUP=16 with the MallinCam and and exposure
time of 250 milli-seconds with the QHY174 camera.
Star is 99 degrees from the moon.
Moon is 1% illuminated.
Apparent brightness V=22.0
Object is 17.4 AU from the Sun
and 17.4 AU from the Earth.
Apparent velocity is 8.6
km/sec on the sky relative to the star, or,
2.5 arcsec/hr.
The 1-sigma error in the time of the event is 163 seconds.
The 1-sigma cross-track error in the shadow position is
640 km.
The object has an absolute magnitude Hv=9.3
Diameter=82.8 km assuming a 5% albedo -- 9.7 sec chord
Diameter=33.8 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is CENTAURR
Star training set for 386968, (2028/03/27 04:04UT) Object RA Dec mag sep mel Antares 16:31:08.6 -26:29:32 0.9 29.25 128 Nunki 18:57:00.8 -26:15:32 2.0 3.76 96 PPM 268836 18:46:33.7 -24:58:48 5.9 1.21 98 PPM 268720 18:41:36.6 -25:28:40 7.6 0.45 99 PPM 268729 18:42:10.6 -24:58:03 9.5 0.22 99 386968 18:41:13.7 -25:01:59 12.7 99 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, (2028/03/27 04:04UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 29.25 128 Nunki 18:55:15.9 -26:17:49 2.0 3.76 96 PPM 268836 18:44:49.6 -25:00:40 5.9 1.21 98 PPM 268720 18:39:52.1 -25:30:20 7.6 0.45 99 PPM 268729 18:40:26.4 -24:59:45 9.5 0.22 99 386968 18:39:29.5 -25:03:38 12.7 99 Positions are for J2000
Event circumstances last updated at 2024/03/07 04:20:16 UT
Marc W. Buie, Southwest Research Institute