Event between (386968) 12BR61 and star GA0680:06331911 with event index number of 2211967
Geocentric closest approach at 2022/08/10 09:29:18 UTC
J2000 position of star is 15:34:01.6 -20:27:48
Equinox of date position of star is 15:35:19.6 -20:32:14
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 58 degrees from the moon.
Moon is 96% illuminated.
TNO apparent brightness V=21.0
TNO is 13.7 AU from the Sun
and 13.5 AU from the Earth.
The TNO is moving 5.0
km/sec on the sky relative to the star, or,
1.9 arcsec/hr.
The 1-sigma error in the time of the event is 107 seconds.
The 1-sigma cross-track error in the shadow position is
504 km.
The TNO has an absolute magnitude Hv=9.3
Diameter=82.8 km assuming a 5% albedo -- 16.5 sec chord
Diameter=33.8 km assuming a 30% albedo -- 6.7 sec chord
Dynamical classification is CENTAURR
Star training set for 386968, (2022/08/10 09:29UT) Object RA Dec mag sep mel Antares 16:30:47.8 -26:28:49 0.9 14.02 44 7Del Sco 16:01:40.5 -22:41:03 2.3 6.49 52 PPM 264334 15:31:54.9 -20:48:17 6.5 0.84 59 PPM 264349 15:33:01.7 -20:14:26 6.6 0.62 59 PPM 264392 15:35:01.0 -20:37:25 8.8 0.11 58 386968 15:35:20.2 -20:32:16 16.7 58 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, (2022/08/10 09:29UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 14.02 44 7Del Sco 16:00:20.0 -22:37:18 2.3 6.49 52 PPM 264334 15:30:36.3 -20:43:43 6.5 0.84 59 PPM 264349 15:31:43.3 -20:09:54 6.6 0.62 59 PPM 264392 15:33:42.4 -20:32:56 8.8 0.11 58 386968 15:34:01.6 -20:27:48 16.7 58 Positions are for J2000
Event circumstances last updated at 2022/06/06 23:51:28 UT
Marc W. Buie, Southwest Research Institute