Event between 12EE18 and star GA0680:05888748 with event index number of 2144352
Geocentric closest approach at 2022/01/18 17:36:31 UTC
J2000 position of star is 14:25:26.7 -21:32:05
Equinox of date position of star is 14:26:41.1 -21:37:58
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 95 degrees from the moon.
Moon is 99% illuminated.
TNO apparent brightness V=22.3
TNO is 38.2 AU from the Sun
and 38.4 AU from the Earth.
The TNO is moving 12.5
km/sec on the sky relative to the star, or,
1.6 arcsec/hr.
The 1-sigma error in the time of the event is 268 seconds.
The 1-sigma cross-track error in the shadow position is
3133 km.
The TNO has an absolute magnitude Hv=6.3
Diameter=332.7 km assuming a 5% albedo -- 26.5 sec chord
Diameter=135.8 km assuming a 30% albedo -- 10.8 sec chord
Dynamical classification is SCATNEAR
Star training set for 12EE18, (2022/01/18 17:37UT) Object RA Dec mag sep mel Spica 13:26:21.5 -11:16:33 1.0 17.77 77 5The Cen 14:07:59.3 -36:28:39 2.1 15.39 97 PPM 228604 14:19:51.7 -18:49:01 5.9 3.24 92 PPM 262912 14:27:00.6 -21:31:48 7.8 0.13 95 PPM 262895 14:26:20.6 -21:40:20 10.0 0.09 95 12EE18 14:26:41.5 -21:38:00 16.7 95 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 12EE18, (2022/01/18 17:37UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 17.77 77 5The Cen 14:06:40.0 -36:22:23 2.1 15.39 97 PPM 228604 14:18:38.2 -18:42:59 5.9 3.24 92 PPM 262912 14:25:45.9 -21:25:53 7.8 0.13 95 PPM 262895 14:25:05.9 -21:34:25 10.0 0.09 95 12EE18 14:25:26.7 -21:32:05 16.7 95 Positions are for J2000
Event circumstances last updated at 2021/12/04 02:03:10 UT
Marc W. Buie, Southwest Research Institute