Event between 05VA123 and star GA1140:01902525 with event index number of 1987805
Geocentric closest approach at 2021/12/05 18:40:22 UTC
J2000 position of star is 06:08:28.7 +24:38:39
Equinox of date position of star is 06:09:49.5 +24:38:21
Stellar brightness G=15.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 177 degrees from the moon.
Moon is 3% 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 24.0
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 211 seconds.
The 1-sigma cross-track error in the shadow position is
1371 km.
The TNO has an absolute magnitude Hv=7.1
Diameter=226.0 km assuming a 5% albedo -- 9.4 sec chord
Diameter=92.2 km assuming a 30% albedo -- 3.8 sec chord
Dynamical classification is 3:2E
Star training set for 05VA123, (2021/12/05 18:40UT) Object RA Dec mag sep mel Betelgeuse 05:56:21.6 +07:24:34 0.4 17.53 160 Alnath 05:27:40.8 +28:37:26 1.6 10.22 168 3 Gem 06:11:03.9 +23:06:28 5.5 1.56 176 5 Gem 06:12:53.0 +24:24:48 6.7 0.73 177 PPM 095531 06:11:17.7 +24:36:46 9.6 0.34 177 PPM 095459 06:09:37.1 +24:34:54 10.4 0.07 177 05VA123 06:09:49.5 +24:38:21 15.9 177 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, (2021/12/05 18:40UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 17.53 160 Alnath 05:26:17.6 +28:36:23 1.6 10.22 168 3 Gem 06:09:44.0 +23:06:48 5.5 1.56 176 5 Gem 06:11:32.3 +24:25:12 6.7 0.73 177 PPM 095531 06:09:56.9 +24:37:07 9.6 0.34 177 PPM 095459 06:08:16.3 +24:35:11 10.4 0.07 177 05VA123 06:08:28.7 +24:38:39 15.9 177 Positions are for J2000
Event circumstances last updated at 2021/12/03 01:42:04 UT
Marc W. Buie, Southwest Research Institute