Event between 12TC324 and star GA0960:00249964 with event index number of 2160608
Geocentric closest approach at 2023/02/24 23:32:38 UTC
J2000 position of star is 02:56:35.4 +06:52:25
Equinox of date position of star is 02:57:48.5 +06:57:54
Stellar brightness G=11.2,
use SENSEUP=8 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 11 degrees from the moon.
Moon is 27% illuminated.
TNO apparent brightness V=22.1
TNO is 34.1 AU from the Sun
and 34.5 AU from the Earth.
The TNO is moving 17.2
km/sec on the sky relative to the star, or,
2.5 arcsec/hr.
The 1-sigma error in the time of the event is 91 seconds.
The 1-sigma cross-track error in the shadow position is
1335 km.
The TNO has an absolute magnitude Hv=6.6
Diameter=291.1 km assuming a 5% albedo -- 17.0 sec chord
Diameter=118.8 km assuming a 30% albedo -- 6.9 sec chord
Dynamical classification is 5:3EE
Star training set for 12TC324, (2023/02/24 23:32UT) Object RA Dec mag sep mel Aldebaran 04:37:15.1 +16:33:14 0.8 26.12 32 Menkar 03:03:29.6 +04:10:45 2.5 3.12 14 PPM 146068 02:57:28.2 +08:28:24 6.3 1.51 10 PPM 146115 03:00:36.2 +06:44:35 7.3 0.73 12 PPM 146052 02:56:42.0 +07:03:14 9.4 0.29 11 12TC324 02:57:49.2 +06:57:57 11.2 11 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 12TC324, (2023/02/24 23:32UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 26.12 32 Menkar 03:02:16.8 +04:05:21 2.5 3.12 14 PPM 146068 02:56:13.9 +08:22:52 6.3 1.51 10 PPM 146115 02:59:22.5 +06:39:07 7.3 0.73 12 PPM 146052 02:55:28.2 +06:57:41 9.4 0.29 11 12TC324 02:56:35.4 +06:52:25 11.2 11 Positions are for J2000
Event circumstances last updated at 2022/12/03 03:02:48 UT
Marc W. Buie, Southwest Research Institute