Event between (10199) Chariklo and star GA0720:33108856 with event index number of 1089622
Geocentric closest approach at 2022/06/27 00:37:07 UTC
J2000 position of star is 20:37:37.5 -16:00:27
Equinox of date position of star is 20:38:52.8 -15:55:42
Stellar brightness G=15.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 125 degrees from the moon.
Moon is 4% illuminated.
TNO apparent brightness V=19.0
TNO is 16.9 AU from the Sun
and 16.1 AU from the Earth.
The TNO is moving 18.7
km/sec on the sky relative to the star, or,
5.8 arcsec/hr.
The 1-sigma error in the time of the event is 37 seconds.
The 1-sigma cross-track error in the shadow position is
650 km.
The TNO has an absolute magnitude Hv=6.6
Diameter=291.1 km assuming a 5% albedo -- 15.6 sec chord
Diameter=118.8 km assuming a 30% albedo -- 6.4 sec chord
Dynamical classification is CENTAURR
Star training set for 10199, (2022/06/27 00:37UT) Object RA Dec mag sep mel Fomalhaut 22:58:53.3 -29:30:09 1.2 34.84 99 38Zet Sgr 19:04:02.4 -29:50:46 2.7 25.81 149 PPM 237762 20:41:48.2 -16:02:34 5.6 0.71 124 PPM 237729 20:40:20.5 -16:28:46 7.4 0.65 125 PPM 237687 20:38:37.5 -15:56:58 8.9 0.07 125 10199 20:38:53.3 -15:55:40 15.6 124 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 10199, (2022/06/27 00:37UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 34.84 99 38Zet Sgr 19:02:36.7 -29:52:49 2.7 25.81 149 PPM 237762 20:40:32.4 -16:07:25 5.6 0.71 124 PPM 237729 20:39:04.5 -16:33:35 7.4 0.65 125 PPM 237687 20:37:21.7 -16:01:44 8.9 0.07 125 10199 20:37:37.5 -16:00:27 15.6 125 Positions are for J2000
Event circumstances last updated at 2022/05/03 00:32:10 UT
Marc W. Buie, Southwest Research Institute