Event between (10199) Chariklo and star UC4-323-210351 with event index number of 201694
Geocentric closest approach at 2019/07/31 14:06:57 UTC
J2000 position of star is 19:33:30.2 -25:34:44
Equinox of date position of star is 19:34:37.0 -25:32:18
Stellar brightness R=15.8,
use SENSEUP=128
Star is 170 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=18.7
TNO is 16.2 AU from the Sun
and 15.2 AU from the Earth.
The TNO is moving 21.7
km/sec on the sky relative to the star, or,
7.1 arcsec/hr.
The 1-sigma error in the time of the event is 99 seconds.
The 1-sigma cross-track error in the shadow position is
1402 km.
The TNO has an absolute magnitude Hv=6.6
Diameter=288.4 km assuming a 5% albedo -- 13.3 sec chord
Diameter=117.7 km assuming a 30% albedo -- 5.4 sec chord
Dynamical classification is CENTAURR
Star training set for 10199, (2019/07/31 14:07UT) Object RA Dec mag sep mel Antares 16:30:36.7 -26:28:26 0.9 41.15 129 38Zet Sgr 19:03:51.3 -29:51:02 2.7 8.07 162 52 Sgr 19:37:53.8 -24:50:20 4.6 1.00 171 PPM 269941 19:34:04.8 -25:59:05 7.9 0.47 170 PPM 269967 19:35:12.3 -25:39:39 9.1 0.17 170 10199 19:34:41.9 -25:32:07 15.8 170 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, (2019/07/31 14:07UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 41.15 129 38Zet Sgr 19:02:36.7 -29:52:49 2.7 8.07 162 52 Sgr 19:36:42.5 -24:53:01 4.6 1.00 171 PPM 269941 19:32:52.9 -26:01:41 7.9 0.47 170 PPM 269967 19:34:00.5 -25:42:16 9.1 0.17 170 10199 19:33:30.2 -25:34:44 15.8 170 Positions are for J2000
Event circumstances last updated at 2018/04/03 16:20:46 UT
Marc W. Buie, Southwest Research Institute