Event between 12WF37 and star GA0920:00332710 with event index number of 2034815
Geocentric closest approach at 2023/02/08 07:11:15 UTC
J2000 position of star is 03:46:36.0 +02:17:05
Equinox of date position of star is 03:47:43.9 +02:21:04
Stellar brightness G=13.6,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 112 degrees from the moon.
Moon is 94% illuminated.
TNO apparent brightness V=22.9
TNO is 28.9 AU from the Sun
and 28.7 AU from the Earth.
The TNO is moving 8.3
km/sec on the sky relative to the star, or,
1.4 arcsec/hr.
The 1-sigma error in the time of the event is 129 seconds.
The 1-sigma cross-track error in the shadow position is
2645 km.
The TNO has an absolute magnitude Hv=8.1
Diameter=120.8 km assuming a 5% albedo -- 17.1 sec chord
Diameter=49.3 km assuming a 30% albedo -- 7.0 sec chord
Dynamical classification is 3:2E+6:4II
Star training set for 12WF37, (2023/02/08 07:11UT) Object RA Dec mag sep mel Aldebaran 04:37:14.9 +16:33:14 0.8 18.69 98 Menkar 03:03:29.4 +04:10:45 2.5 11.21 123 12 Tau 03:41:03.5 +03:07:50 6.1 1.85 114 PPM 146877 03:46:15.0 +02:41:31 8.3 0.51 113 PPM 146901 03:47:54.3 +02:24:29 9.4 0.06 112 12WF37 03:47:48.1 +02:21:18 13.6 112 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 12WF37, (2023/02/08 07:11UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 18.69 98 Menkar 03:02:16.8 +04:05:21 2.5 11.21 123 12 Tau 03:39:51.1 +03:03:25 6.1 1.85 114 PPM 146877 03:45:02.7 +02:37:15 8.3 0.51 113 PPM 146901 03:46:42.2 +02:20:16 9.4 0.06 112 12WF37 03:46:36.0 +02:17:05 13.6 112 Positions are for J2000
Event circumstances last updated at 2021/10/06 01:13:19 UT
Marc W. Buie, Southwest Research Institute