Event between (534625) 14UQ224 and star GA1140:00857097 with event index number of 1614148
Geocentric closest approach at 2020/12/31 22:32:41 UTC
J2000 position of star is 04:53:08.6 +24:15:20
Equinox of date position of star is 04:54:25.2 +24:17:20
Stellar brightness G=11.8,
use SENSEUP=8 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 47 degrees from the moon.
Moon is 97% illuminated.
TNO apparent brightness V=22.2
TNO is 46.6 AU from the Sun
and 45.7 AU from the Earth.
The TNO is moving 23.0
km/sec on the sky relative to the star, or,
2.5 arcsec/hr.
The 1-sigma error in the time of the event is 72 seconds.
The 1-sigma cross-track error in the shadow position is
1657 km.
The TNO has an absolute magnitude Hv=5.5
Diameter=478.6 km assuming a 5% albedo -- 20.8 sec chord
Diameter=195.4 km assuming a 30% albedo -- 8.5 sec chord
Dynamical classification is CLASSICAL
Star training set for 534625, (2020/12/31 22:33UT) Object RA Dec mag sep mel Aldebaran 04:37:07.7 +16:32:59 0.8 8.73 53 Alnath 05:27:37.3 +28:37:23 1.6 8.60 39 98 Tau 04:59:26.7 +25:04:51 5.8 1.39 46 PPM 093877 04:55:54.2 +23:58:14 8.5 0.46 47 PPM 093822 04:52:31.6 +24:19:30 9.4 0.43 48 PPM 093834 04:53:24.6 +24:05:01 11.3 0.31 47 534625 04:54:25.3 +24:17:20 11.8 47 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 534625, (2020/12/31 22:33UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 8.73 53 Alnath 05:26:17.5 +28:36:23 1.6 8.60 39 98 Tau 04:58:09.4 +25:03:00 5.8 1.39 46 PPM 093877 04:54:37.6 +23:56:16 8.5 0.46 47 PPM 093822 04:51:14.9 +24:17:27 9.4 0.43 48 PPM 093834 04:52:08.0 +24:02:59 11.3 0.31 47 534625 04:53:08.6 +24:15:20 11.8 47 Positions are for J2000
Event circumstances last updated at 2020/12/23 00:23:19 UT
Marc W. Buie, Southwest Research Institute