Event between (578559) 14DC143 and star GA0740:08217976 with event index number of 2550012
Geocentric closest approach at 2028/03/21 01:43:03 UTC
J2000 position of star is 17:27:16.3 -14:25:28
Equinox of date position of star is 17:28:31.8 -14:26:30
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 44 degrees from the moon.
Moon is 22% illuminated.
TNO apparent brightness V=23.3
TNO is 18.9 AU from the Sun
and 18.7 AU from the Earth.
The TNO is moving 3.2
km/sec on the sky relative to the star, or,
0.8 arcsec/hr.
The 1-sigma error in the time of the event is 999 seconds.
The 1-sigma cross-track error in the shadow position is
4619 km.
The TNO has an absolute magnitude Hv=10.3
Diameter=52.2 km assuming a 5% albedo -- 16.4 sec chord
Diameter=21.3 km assuming a 30% albedo -- 6.7 sec chord
Dynamical classification is CENTAURR
Star training set for 578559, (2028/03/21 01:43UT) Object RA Dec mag sep mel Antares 16:31:08.6 -26:29:31 0.9 18.08 56 35Eta Oph 17:11:59.9 -15:45:28 2.6 4.28 48 53Nu Ser 17:22:25.0 -12:52:23 4.0 2.22 46 PPM 233132 17:30:43.5 -14:06:04 8.2 0.57 44 PPM 233080 17:28:25.5 -14:18:34 9.3 0.18 44 578559 17:28:52.6 -14:26:47 16.8 44 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, (2028/03/21 01:43UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 18.08 56 35Eta Oph 17:10:22.7 -15:43:29 2.6 4.28 48 53Nu Ser 17:20:49.7 -12:50:49 4.0 2.22 46 PPM 233132 17:29:07.3 -14:04:50 8.2 0.57 44 PPM 233080 17:26:49.2 -14:17:14 9.3 0.18 44 578559 17:27:16.3 -14:25:28 16.8 44 Positions are for J2000
Event circumstances last updated at 2022/02/09 01:12:14 UT
Marc W. Buie, Southwest Research Institute