Event between (543377) 14BF70 and star GA0780:04162858 with event index number of 2252616
Geocentric closest approach at 2022/04/30 11:25:24 UTC
J2000 position of star is 11:55:28.8 -10:50:15
Equinox of date position of star is 11:56:37.3 -10:57:42
Stellar brightness G=14.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 146 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=20.8
TNO is 13.0 AU from the Sun
and 12.2 AU from the Earth.
The TNO is moving 13.8
km/sec on the sky relative to the star, or,
5.6 arcsec/hr.
The 1-sigma error in the time of the event is 39 seconds.
The 1-sigma cross-track error in the shadow position is
506 km.
The TNO has an absolute magnitude Hv=9.5
Diameter=73.8 km assuming a 5% albedo -- 5.5 sec chord
Diameter=30.1 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
Star training set for 543377, (2022/04/30 11:25UT) Object RA Dec mag sep mel Spica 13:26:22.4 -11:16:38 1.0 22.01 168 4Gam Crv 12:16:57.5 -17:39:57 2.6 8.32 150 PPM 225208 12:00:18.0 -10:36:00 6.4 0.97 146 PPM 225145 11:57:54.2 -10:50:58 7.8 0.33 146 PPM 225131 11:57:20.0 -10:53:00 9.1 0.19 146 543377 11:56:37.4 -10:57:43 14.5 146 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 543377, (2022/04/30 11:25UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 22.01 168 4Gam Crv 12:15:48.1 -17:32:30 2.6 8.32 150 PPM 225208 11:59:09.3 -10:28:33 6.4 0.97 146 PPM 225145 11:56:45.7 -10:43:31 7.8 0.33 146 PPM 225131 11:56:11.4 -10:45:32 9.1 0.19 146 543377 11:55:28.8 -10:50:15 14.5 146 Positions are for J2000
Event circumstances last updated at 2022/04/17 00:14:23 UT
Marc W. Buie, Southwest Research Institute