Event between (10199) Chariklo and star GA0760:23946835 with event index number of 1197786
Geocentric closest approach at 2023/04/06 03:33:50 UTC
J2000 position of star is 20:54:42.3 -13:33:26
Equinox of date position of star is 20:55:53.3 -13:28:29
Stellar brightness G=15.1,
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 100% illuminated.
TNO apparent brightness V=19.2
TNO is 17.1 AU from the Sun
and 17.5 AU from the Earth.
The TNO is moving 20.4
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 44 seconds.
The 1-sigma cross-track error in the shadow position is
860 km.
The TNO has an absolute magnitude Hv=6.5
Diameter=296.5 km assuming a 5% albedo -- 14.5 sec chord
Diameter=121.0 km assuming a 30% albedo -- 5.9 sec chord
Dynamical classification is CENTAURR
Star training set for 10199, (2023/04/06 03:34UT) Object RA Dec mag sep mel Fomalhaut 22:58:55.8 -29:29:54 1.2 32.62 135 Tarazed 19:47:21.9 +10:40:17 2.7 29.54 102 PPM 238168 20:59:59.0 -14:23:31 6.1 1.34 117 PPM 238062 20:55:08.8 -13:07:00 8.5 0.41 116 PPM 238070 20:55:33.4 -13:38:51 9.8 0.21 116 10199 20:55:59.2 -13:28:04 15.1 117 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 10199, (2023/04/06 03:34UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 32.62 135 Tarazed 19:46:15.6 +10:36:48 2.7 29.54 102 PPM 238168 20:58:41.8 -14:28:59 6.1 1.34 117 PPM 238062 20:53:52.0 -13:12:22 8.5 0.41 116 PPM 238070 20:54:16.4 -13:44:13 9.8 0.21 116 10199 20:54:42.3 -13:33:26 15.1 117 Positions are for J2000
Event circumstances last updated at 2021/06/18 23:42:45 UT
Marc W. Buie, Southwest Research Institute