Event between (310071) 10KR59 and star GA0620:08027439 with event index number of 2186826
Geocentric closest approach at 2023/04/28 00:44:04 UTC
J2000 position of star is 16:10:16.8 -27:35:53
Equinox of date position of star is 16:11:40.9 -27:39:22
Stellar brightness G=15.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 117 degrees from the moon.
Moon is 51% illuminated.
TNO apparent brightness V=21.0
TNO is 20.4 AU from the Sun
and 19.5 AU from the Earth.
The TNO is moving 20.0
km/sec on the sky relative to the star, or,
5.1 arcsec/hr.
The 1-sigma error in the time of the event is 48 seconds.
The 1-sigma cross-track error in the shadow position is
796 km.
The TNO has an absolute magnitude Hv=7.8
Diameter=163.7 km assuming a 5% albedo -- 8.2 sec chord
Diameter=66.8 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is CENTAURR
Star training set for 310071, (2023/04/28 00:44UT) Object RA Dec mag sep mel Antares 16:30:50.5 -26:28:54 0.9 4.42 121 7Del Sco 16:01:43.0 -22:41:10 2.3 5.46 114 13 Sco 16:13:44.7 -27:59:06 4.7 0.56 118 PPM 265200 16:11:07.0 -27:57:17 8.1 0.33 117 PPM 265203 16:11:19.5 -27:40:30 9.6 0.09 117 310071 16:11:43.0 -27:39:27 15.0 117 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 310071, (2023/04/28 00:44UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 4.42 121 7Del Sco 16:00:20.0 -22:37:18 2.3 5.46 114 13 Sco 16:12:18.2 -27:55:36 4.7 0.56 118 PPM 265200 16:09:40.6 -27:53:42 8.1 0.33 117 PPM 265203 16:09:53.3 -27:36:55 9.6 0.09 117 310071 16:10:16.8 -27:35:53 15.0 117 Positions are for J2000
Event circumstances last updated at 2022/09/29 04:20:09 UT
Marc W. Buie, Southwest Research Institute