Event between 12TF324 and star GA1100:00211647 with event index number of 2160824
Geocentric closest approach at 2022/12/17 19:53:11 UTC
J2000 position of star is 01:54:20.4 +20:01:43
Equinox of date position of star is 01:55:33.0 +20:08:08
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 157 degrees from the moon.
Moon is 36% illuminated.
TNO apparent brightness V=22.5
TNO is 38.8 AU from the Sun
and 38.1 AU from the Earth.
The TNO is moving 13.9
km/sec on the sky relative to the star, or,
1.8 arcsec/hr.
The 1-sigma error in the time of the event is 168 seconds.
The 1-sigma cross-track error in the shadow position is
1673 km.
The TNO has an absolute magnitude Hv=6.5
Diameter=293.8 km assuming a 5% albedo -- 21.4 sec chord
Diameter=119.9 km assuming a 30% albedo -- 8.7 sec chord
Dynamical classification is CLASSICAL
Star training set for 12TF324, (2022/12/17 19:53UT) Object RA Dec mag sep mel Aldebaran 04:37:14.5 +16:33:13 0.8 38.43 123 6Bet Ari 01:55:54.8 +20:55:10 2.6 0.78 156 1 Ari 01:51:25.0 +22:23:17 6.3 2.45 156 PPM 091140 01:52:25.5 +20:37:38 7.2 0.89 157 PPM 091186 01:56:05.1 +20:23:45 10.0 0.28 156 12TF324 01:55:36.4 +20:08:26 15.8 156 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 12TF324, (2022/12/17 19:53UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 38.43 123 6Bet Ari 01:54:38.5 +20:48:26 2.6 0.78 156 1 Ari 01:50:08.6 +22:16:30 6.3 2.45 156 PPM 091140 01:51:09.5 +20:30:51 7.2 0.89 157 PPM 091186 01:54:49.0 +20:17:02 10.0 0.28 156 12TF324 01:54:20.4 +20:01:43 15.8 157 Positions are for J2000
Event circumstances last updated at 2021/12/10 01:38:55 UT
Marc W. Buie, Southwest Research Institute