Event between (523690) 14DN143 and star GA0820:04167618 with event index number of 2381098
Geocentric closest approach at 2023/04/21 02:06:30 UTC
J2000 position of star is 11:57:36.2 -06:11:59
Equinox of date position of star is 11:58:44.9 -06:19:27
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 139 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=22.0
TNO is 46.4 AU from the Sun
and 45.5 AU from the Earth.
The TNO is moving 21.9
km/sec on the sky relative to the star, or,
2.4 arcsec/hr.
The 1-sigma error in the time of the event is 96 seconds.
The 1-sigma cross-track error in the shadow position is
1860 km.
The TNO has an absolute magnitude Hv=5.3
Diameter=529.7 km assuming a 5% albedo -- 24.1 sec chord
Diameter=216.2 km assuming a 30% albedo -- 9.9 sec chord
Dynamical classification is CLASSICAL
Star training set for 523690, (2023/04/21 02:06UT) Object RA Dec mag sep mel Spica 13:26:25.4 -11:16:56 1.0 22.20 162 4Gam Crv 12:17:00.5 -17:40:16 2.6 12.18 146 PPM 194890 11:52:13.8 -05:27:47 5.6 1.85 138 PPM 195032 12:00:12.6 -06:47:00 8.1 0.57 140 PPM 195012 11:59:12.5 -06:15:27 9.5 0.12 140 523690 11:58:47.8 -06:19:46 16.9 140 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 523690, (2023/04/21 02:06UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 22.20 162 4Gam Crv 12:15:48.1 -17:32:30 2.6 12.18 146 PPM 194890 11:51:02.2 -05:20:00 5.6 1.85 138 PPM 195032 11:59:01.0 -06:39:13 8.1 0.57 140 PPM 195012 11:58:00.8 -06:07:40 9.5 0.12 140 523690 11:57:36.2 -06:11:59 16.9 139 Positions are for J2000
Event circumstances last updated at 2022/05/03 01:12:14 UT
Marc W. Buie, Southwest Research Institute