Event between (10199) Chariklo and star UC4-308-260763 with event index number of 126911
Geocentric closest approach at 2018/07/04 15:11:13 UTC
J2000 position of star is 19:16:59.9 -28:35:39
Equinox of date position of star is 19:18:05.5 -28:33:43
Stellar brightness R=16.3,
use SENSEUP=128
Star is 66 degrees from the moon.
Moon is 67% illuminated.
TNO apparent brightness V=18.5
TNO is 15.9 AU from the Sun
and 14.9 AU from the Earth.
The TNO is moving 22.6
km/sec on the sky relative to the star, or,
7.5 arcsec/hr.
The 1-sigma error in the time of the event is 139 seconds.
The 1-sigma cross-track error in the shadow position is
1884 km.
The TNO has an absolute magnitude Hv=6.6
Diameter=288.4 km assuming a 5% albedo -- 12.8 sec chord
Diameter=117.7 km assuming a 30% albedo -- 5.2 sec chord
Dynamical classification is CENTAURR
Star training set for 10199, (2018/07/04 15:11UT) Object RA Dec mag sep mel Antares 16:30:32.7 -26:28:17 0.9 37.03 103 38Zet Sgr 19:03:47.2 -29:51:08 2.7 3.39 69 PPM 269757 19:26:13.8 -29:16:19 5.6 1.90 64 PPM 269561 19:17:58.5 -28:37:58 7.8 0.08 66 10199 19:18:09.5 -28:33:35 16.3 66 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, (2018/07/04 15:11UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 37.03 103 38Zet Sgr 19:02:36.7 -29:52:49 2.7 3.39 69 PPM 269757 19:25:04.0 -29:18:35 5.6 1.90 64 PPM 269561 19:16:48.9 -28:40:01 7.8 0.08 66 10199 19:16:59.9 -28:35:39 16.3 66 Positions are for J2000
Event circumstances last updated at 2017/06/14 17:01:29 UT
Marc W. Buie, Southwest Research Institute