Event between (558168) 14XQ40 and star GA0640:06425411 with event index number of 2629020
Geocentric closest approach at 2024/06/12 10:44:30 UTC
J2000 position of star is 14:18:53.4 -24:08:24
Equinox of date position of star is 14:20:08.0 -24:14:23
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 69 degrees from the moon.
Moon is 34% illuminated.
TNO apparent brightness V=22.3
TNO is 21.4 AU from the Sun
and 20.7 AU from the Earth.
The TNO is moving 15.3
km/sec on the sky relative to the star, or,
3.7 arcsec/hr.
The 1-sigma error in the time of the event is 111 seconds.
The 1-sigma cross-track error in the shadow position is
1280 km.
The TNO has an absolute magnitude Hv=8.9
Diameter=98.2 km assuming a 5% albedo -- 6.4 sec chord
Diameter=40.1 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is CENTAURR
Star training set for 558168, (2024/06/12 10:45UT) Object RA Dec mag sep mel Spica 13:26:29.1 -11:17:17 1.0 18.20 52 5The Cen 14:08:07.9 -36:29:20 2.1 12.51 73 PPM 262630 14:13:47.9 -24:28:38 6.2 1.49 68 PPM 262741 14:19:04.7 -24:40:02 8.3 0.50 69 PPM 262762 14:20:17.9 -24:25:10 9.7 0.17 69 PPM 262772 14:20:35.3 -24:08:52 10.1 0.12 69 558168 14:20:17.0 -24:15:06 16.8 69 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 558168, (2024/06/12 10:45UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 18.20 52 5The Cen 14:06:40.0 -36:22:23 2.1 12.51 73 PPM 262630 14:12:24.6 -24:21:48 6.2 1.49 68 PPM 262741 14:17:41.0 -24:33:19 8.3 0.50 69 PPM 262762 14:18:54.3 -24:18:28 9.7 0.17 69 PPM 262772 14:19:11.7 -24:02:11 10.1 0.12 69 558168 14:18:53.4 -24:08:24 16.8 69 Positions are for J2000
Event circumstances last updated at 2021/10/27 22:47:32 UT
Marc W. Buie, Southwest Research Institute