Event between 05VA123 and star GA1140:01897730 with event index number of 1987809
Geocentric closest approach at 2021/12/08 00:14:17 UTC
J2000 position of star is 06:08:15.9 +24:38:43
Equinox of date position of star is 06:09:36.7 +24:38:26
Stellar brightness G=15.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 144 degrees from the moon.
Moon is 19% illuminated.
TNO apparent brightness V=22.9
TNO is 37.7 AU from the Sun
and 36.8 AU from the Earth.
The TNO is moving 24.3
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 208 seconds.
The 1-sigma cross-track error in the shadow position is
1334 km.
The TNO has an absolute magnitude Hv=7.1
Diameter=226.0 km assuming a 5% albedo -- 9.3 sec chord
Diameter=92.2 km assuming a 30% albedo -- 3.8 sec chord
Dynamical classification is 3:2E
Star training set for 05VA123, (2021/12/08 00:14UT) Object RA Dec mag sep mel Betelgeuse 05:56:21.6 +07:24:34 0.4 17.52 136 Alnath 05:27:40.8 +28:37:26 1.6 10.18 135 3 Gem 06:11:04.0 +23:06:28 5.5 1.57 144 5 Gem 06:12:53.0 +24:24:48 6.7 0.78 145 PPM 095411 06:08:18.0 +24:32:31 9.6 0.31 144 PPM 095459 06:09:37.2 +24:34:54 10.4 0.06 144 05VA123 06:09:36.7 +24:38:26 15.6 145 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 05VA123, (2021/12/08 00:14UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 17.52 136 Alnath 05:26:17.6 +28:36:23 1.6 10.18 135 3 Gem 06:09:44.0 +23:06:48 5.5 1.57 144 5 Gem 06:11:32.3 +24:25:12 6.7 0.78 145 PPM 095411 06:06:57.2 +24:32:45 9.6 0.31 144 PPM 095459 06:08:16.3 +24:35:11 10.4 0.06 144 05VA123 06:08:15.9 +24:38:43 15.6 144 Positions are for J2000
Event circumstances last updated at 2021/12/03 01:42:22 UT
Marc W. Buie, Southwest Research Institute