Event between (10199) Chariklo and star GA0920:17935116 with event index number of 2166301
Geocentric closest approach at 2028/08/18 16:42:02 UTC
J2000 position of star is 21:59:00.3 +02:11:13
Equinox of date position of star is 22:00:14.1 +02:18:13
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 147 degrees from the moon.
Moon is 5% illuminated.
Apparent brightness V=19.1
Object is 18.0 AU from the Sun
and 17.0 AU from the Earth.
Apparent velocity is 23.4
km/sec on the sky relative to the star, or,
6.8 arcsec/hr.
The 1-sigma error in the time of the event is 41 seconds.
The 1-sigma cross-track error in the shadow position is
894 km.
The object has an absolute magnitude Hv=6.6
Diameter=291.1 km assuming a 5% albedo -- 12.6 sec chord
Diameter=118.8 km assuming a 30% albedo -- 5.2 sec chord
Dynamical classification is CENTAURR
Star training set for 10199, (2028/08/18 16:42UT) Object RA Dec mag sep mel Fomalhaut 22:59:13.5 -29:28:11 1.2 34.76 142 Markab 23:06:11.4 +15:21:36 2.5 20.79 126 11 Peg 21:48:41.0 +02:49:11 5.6 2.98 149 PPM 172434 21:57:05.8 +02:29:51 7.4 0.86 147 PPM 172514 22:00:55.6 +02:21:18 9.5 0.12 147 10199 22:00:27.6 +02:19:30 16.9 147 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, (2028/08/18 16:42UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.7 -29:37:24 1.2 34.76 142 Markab 23:04:45.8 +15:12:18 2.5 20.79 126 11 Peg 21:47:14.0 +02:41:10 5.6 2.98 149 PPM 172434 21:55:38.6 +02:21:38 7.4 0.86 147 PPM 172514 21:59:28.3 +02:13:01 9.5 0.12 147 10199 21:59:00.3 +02:11:13 16.9 147 Positions are for J2000
Event circumstances last updated at 2024/03/19 04:09:24 UT
Marc W. Buie, Southwest Research Institute