Event between 03UN292 and star GA1120:01104702 with event index number of 1073227
Geocentric closest approach at 2021/12/09 15:01:43 UTC
J2000 position of star is 05:19:43.4 +23:52:45
Equinox of date position of star is 05:21:02.6 +23:53:59
Stellar brightness G=15.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 111 degrees from the moon.
Moon is 35% illuminated.
TNO apparent brightness V=23.4
TNO is 40.2 AU from the Sun
and 39.2 AU from the Earth.
The TNO is moving 25.3
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 1139 seconds.
The 1-sigma cross-track error in the shadow position is
2927 km.
The TNO has an absolute magnitude Hv=7.4
Diameter=196.8 km assuming a 5% albedo -- 7.8 sec chord
Diameter=80.3 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is CLASSICAL
Star training set for 03UN292, (2021/12/09 15:02UT) Object RA Dec mag sep mel Aldebaran 04:37:10.9 +16:33:06 0.8 12.64 99 Alnath 05:27:40.8 +28:37:26 1.6 4.95 113 109 Tau 05:20:35.8 +22:07:02 4.9 1.79 110 PPM 094241 05:18:52.0 +24:01:53 7.9 0.52 110 PPM 094286 05:22:02.7 +23:45:29 10.6 0.27 111 03UN292 05:21:03.6 +23:54:00 15.6 111 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 03UN292, (2021/12/09 15:02UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 12.64 99 Alnath 05:26:17.5 +28:36:23 1.6 4.95 113 109 Tau 05:19:16.6 +22:05:46 4.9 1.79 110 PPM 094241 05:17:31.7 +24:00:34 7.9 0.52 110 PPM 094286 05:20:42.5 +23:44:15 10.6 0.27 111 03UN292 05:19:43.4 +23:52:45 15.6 111 Positions are for J2000
Event circumstances last updated at 2021/09/02 02:28:41 UT
Marc W. Buie, Southwest Research Institute