Event between (10199) Chariklo and star UC4-293-214979 with event index number of 56838
Geocentric closest approach at 2017/05/30 21:20:17 UTC
J2000 position of star is 19:00:08.0 -31:28:41
Equinox of date position of star is 19:01:13.5 -31:27:12
Stellar brightness R=15.5
Star is 143 degrees from the moon.
Moon is 33% illuminated.
TNO apparent brightness V=18.6
TNO is 15.6 AU from the Sun
and 14.8 AU from the Earth.
The TNO is moving 17.5
km/sec on the sky relative to the star, or,
5.9 arcsec/hr.
The 1-sigma error in the time of the event is 172 seconds.
The 1-sigma cross-track error in the shadow position is
1708 km.
The TNO has an absolute magnitude Hv=6.6
Diameter=288.4 km assuming a 5% albedo -- 16.5 sec chord
Diameter=117.7 km assuming a 30% albedo -- 6.7 sec chord
Dynamical classification is CENTAURR
Star training set for 10199, (2017/05/30 21:20UT) Object RA Dec mag sep mel Antares 16:30:28.7 -26:28:09 0.9 33.19 110 38Zet Sgr 19:03:43.1 -29:51:14 2.7 1.68 144 PPM 298390 18:59:28.3 -31:00:42 5.9 0.58 142 PPM 298380 18:59:13.1 -31:47:16 7.9 0.55 142 PPM 298458 19:03:01.3 -31:27:29 9.3 0.38 143 10199 19:01:15.3 -31:27:10 15.5 143 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, (2017/05/30 21:20UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:55 0.9 33.19 110 38Zet Sgr 19:02:36.7 -29:52:49 2.7 1.68 144 PPM 298390 18:58:21.2 -31:02:10 5.9 0.58 142 PPM 298380 18:58:05.6 -31:48:44 7.9 0.55 142 PPM 298458 19:01:54.0 -31:29:03 9.3 0.38 143 10199 19:00:08.0 -31:28:41 15.5 143 Positions are for J2000
Event circumstances last updated at 2016/12/09 18:48:54 UT
Marc W. Buie, Southwest Research Institute