Event between (10199) Chariklo and star GA0700:33946692 with event index number of 1089555
Geocentric closest approach at 2021/10/25 15:42:57 UTC
J2000 position of star is 20:05:04.9 -19:19:18
Equinox of date position of star is 20:06:20.7 -19:15:30
Stellar brightness G=15.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 148 degrees from the moon.
Moon is 79% illuminated.
TNO apparent brightness V=19.2
TNO is 16.8 AU from the Sun
and 16.8 AU from the Earth.
The TNO is moving 8.7
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 77 seconds.
The 1-sigma cross-track error in the shadow position is
642 km.
The TNO has an absolute magnitude Hv=6.6
Diameter=292.4 km assuming a 5% albedo -- 33.6 sec chord
Diameter=119.4 km assuming a 30% albedo -- 13.7 sec chord
Dynamical classification is CENTAURR
Star training set for 10199, (2021/10/25 15:43UT) Object RA Dec mag sep mel Fomalhaut 22:58:51.1 -29:30:22 1.2 40.35 113 Nunki 18:56:37.0 -26:16:04 2.0 17.51 165 57 Sgr 19:53:27.9 -18:59:16 5.8 3.05 151 PPM 236938 20:07:29.7 -19:25:36 7.9 0.32 148 PPM 236901 20:06:05.5 -19:27:14 9.6 0.20 148 10199 20:06:20.7 -19:15:30 15.1 148 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, (2021/10/25 15:43UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 40.35 113 Nunki 18:55:15.9 -26:17:49 2.0 17.51 165 57 Sgr 19:52:12.0 -19:02:43 5.8 3.05 151 PPM 236938 20:06:13.8 -19:29:26 7.9 0.32 148 PPM 236901 20:04:49.7 -19:31:01 9.6 0.20 148 10199 20:05:04.9 -19:19:18 15.1 148 Positions are for J2000
Event circumstances last updated at 2021/10/22 00:22:15 UT
Marc W. Buie, Southwest Research Institute