Event between (578559) 14DC143 and star GA0740:07089114 with event index number of 2550100
Geocentric closest approach at 2028/10/05 07:48:37 UTC
J2000 position of star is 17:12:18.3 -15:10:24
Equinox of date position of star is 17:13:34.2 -15:11:55
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 131 degrees from the moon.
Moon is 97% illuminated.
TNO apparent brightness V=23.4
TNO is 19.1 AU from the Sun
and 19.5 AU from the Earth.
The TNO is moving 19.7
km/sec on the sky relative to the star, or,
5.0 arcsec/hr.
The 1-sigma error in the time of the event is 228 seconds.
The 1-sigma cross-track error in the shadow position is
3035 km.
The TNO has an absolute magnitude Hv=10.3
Diameter=52.2 km assuming a 5% albedo -- 2.6 sec chord
Diameter=21.3 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURR
Star training set for 578559, (2028/10/05 07:49UT) Object RA Dec mag sep mel Antares 16:31:10.6 -26:29:36 0.9 15.06 141 35Eta Oph 17:12:01.8 -15:45:30 2.6 0.72 131 PPM 232829 17:16:58.5 -14:36:53 5.9 0.94 130 PPM 232759 17:14:13.7 -15:11:45 8.3 0.07 131 578559 17:13:57.0 -15:12:21 16.9 130 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 578559, (2028/10/05 07:49UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 15.06 141 35Eta Oph 17:10:22.7 -15:43:29 2.6 0.72 131 PPM 232829 17:15:20.3 -14:35:03 5.9 0.94 130 PPM 232759 17:12:35.0 -15:09:49 8.3 0.07 131 578559 17:12:18.3 -15:10:24 16.9 131 Positions are for J2000
Event circumstances last updated at 2022/02/19 01:15:40 UT
Marc W. Buie, Southwest Research Institute