Event between 12VB116 and star GA0900:00936995 with event index number of 2161817
Geocentric closest approach at 2022/01/03 20:18:44 UTC
J2000 position of star is 05:59:03.6 +00:19:51
Equinox of date position of star is 06:00:11.2 +00:19:52
Stellar brightness G=15.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 141 degrees from the moon.
Moon is 2% illuminated.
TNO apparent brightness V=22.0
TNO is 47.4 AU from the Sun
and 46.5 AU from the Earth.
The TNO is moving 25.4
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 103 seconds.
The 1-sigma cross-track error in the shadow position is
1724 km.
The TNO has an absolute magnitude Hv=5.2
Diameter=562.4 km assuming a 5% albedo -- 22.2 sec chord
Diameter=229.6 km assuming a 30% albedo -- 9.1 sec chord
Dynamical classification is SCATEXTD
Star training set for 12VB116, (2022/01/03 20:19UT) Object RA Dec mag sep mel Betelgeuse 05:56:21.8 +07:24:34 0.4 7.14 144 34Del Ori 05:33:07.9 -00:17:04 2.2 6.79 135 60 Ori 05:59:57.5 +00:33:12 5.2 0.23 141 PPM 149734 06:00:59.3 +00:03:20 8.2 0.34 141 60 Ori 05:59:57.5 +00:33:12 5.2 0.23 141 12VB116 06:00:11.5 +00:19:52 15.0 141 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 12VB116, (2022/01/03 20:19UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 7.14 144 34Del Ori 05:32:00.4 -00:17:57 2.2 6.79 135 60 Ori 05:58:49.6 +00:33:11 5.2 0.23 141 PPM 149734 05:59:51.6 +00:03:21 8.2 0.34 141 60 Ori 05:58:49.6 +00:33:11 5.2 0.23 141 12VB116 05:59:03.6 +00:19:51 15.0 141 Positions are for J2000
Event circumstances last updated at 2021/12/04 02:02:31 UT
Marc W. Buie, Southwest Research Institute