Event between (10199) Chariklo and star GA0820:22084515 with event index number of 1462579
Geocentric closest approach at 2025/09/02 17:36:58 UTC
J2000 position of star is 21:13:12.7 -07:04:11
Equinox of date position of star is 21:14:29.8 -06:58:08
Stellar brightness G=14.3,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 43 degrees from the moon.
Moon is 73% illuminated.
Apparent brightness V=19.1
Object is 17.6 AU from the Sun
and 16.6 AU from the Earth.
Apparent velocity is 21.1
km/sec on the sky relative to the star, or,
6.3 arcsec/hr.
The 1-sigma error in the time of the event is 35 seconds.
The 1-sigma cross-track error in the shadow position is
695 km.
The object has an absolute magnitude Hv=6.6
Diameter=291.1 km assuming a 5% albedo -- 14.0 sec chord
Diameter=118.8 km assuming a 30% albedo -- 5.7 sec chord
Dynamical classification is CENTAURR
Star training set for 10199, (2025/09/02 17:36UT) Object RA Dec mag sep mel Fomalhaut 22:59:03.7 -29:29:08 1.2 33.33 56 Tarazed 19:47:28.8 +10:40:39 2.7 27.95 42 PPM 204905 21:12:09.8 -09:14:54 6.5 2.36 41 PPM 204942 21:14:09.3 -07:02:59 8.3 0.14 42 PPM 204943 21:14:14.4 -06:54:30 9.5 0.10 42 10199 21:14:34.5 -06:57:46 14.3 43 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, (2025/09/02 17:36UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 33.33 56 Tarazed 19:46:15.6 +10:36:48 2.7 27.95 42 PPM 204905 21:10:47.1 -09:21:16 6.5 2.36 41 PPM 204942 21:12:47.5 -07:09:23 8.3 0.14 42 PPM 204943 21:12:52.7 -07:00:54 9.5 0.10 42 10199 21:13:12.7 -07:04:11 14.3 42 Positions are for J2000
Event circumstances last updated at 2024/03/19 03:39:12 UT
Marc W. Buie, Southwest Research Institute