Event between 12TC324 and star GA0940:00229734 with event index number of 1056465
Geocentric closest approach at 2021/02/26 14:00:42 UTC
J2000 position of star is 02:41:40.3 +05:43:26
Equinox of date position of star is 02:42:47.0 +05:48:46
Stellar brightness G=15.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 109 degrees from the moon.
Moon is 99% illuminated.
TNO apparent brightness V=22.2
TNO is 34.0 AU from the Sun
and 34.5 AU from the Earth.
The TNO is moving 19.9
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 81 seconds.
The 1-sigma cross-track error in the shadow position is
1365 km.
The TNO has an absolute magnitude Hv=6.7
Diameter=269.2 km assuming a 5% albedo -- 13.6 sec chord
Diameter=109.9 km assuming a 30% albedo -- 5.6 sec chord
Dynamical classification is 5:3EE
Star training set for 12TC324, (2021/02/26 14:00UT) Object RA Dec mag sep mel Aldebaran 04:37:08.2 +16:33:00 0.8 29.98 79 Menkar 03:03:23.3 +04:10:17 2.5 5.39 105 PPM 145873 02:46:27.6 +04:47:59 6.2 1.37 108 PPM 145811 02:42:14.9 +06:09:44 7.8 0.37 109 PPM 145823 02:43:09.5 +05:55:28 10.3 0.14 109 12TC324 02:42:47.2 +05:48:48 15.2 109 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, (2021/02/26 14:00UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 29.98 79 Menkar 03:02:16.8 +04:05:21 2.5 5.39 105 PPM 145873 02:45:21.0 +04:42:41 6.2 1.37 108 PPM 145811 02:41:07.9 +06:04:21 7.8 0.37 109 PPM 145823 02:42:02.5 +05:50:06 10.3 0.14 109 12TC324 02:41:40.3 +05:43:26 15.2 109 Positions are for J2000
Event circumstances last updated at 2021/01/24 20:35:49 UT
Marc W. Buie, Southwest Research Institute