Event between (523682) 14CN23 and star GA0540:09281151 with event index number of 1055350
Geocentric closest approach at 2021/02/22 21:05:18 UTC
J2000 position of star is 16:12:13.8 -34:07:07
Equinox of date position of star is 16:13:35.7 -34:10:17
Stellar brightness G=14.1,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 147 degrees from the moon.
Moon is 78% illuminated.
TNO apparent brightness V=21.7
TNO is 18.1 AU from the Sun
and 18.1 AU from the Earth.
The TNO is moving 11.1
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 157 seconds.
The 1-sigma cross-track error in the shadow position is
2275 km.
The TNO has an absolute magnitude Hv=8.8
Diameter=104.7 km assuming a 5% albedo -- 9.4 sec chord
Diameter=42.8 km assuming a 30% albedo -- 3.8 sec chord
Dynamical classification is CENTAURR
Star training set for 523682, (2021/02/22 21:05UT) Object RA Dec mag sep mel Antares 16:30:42.4 -26:28:38 0.9 8.53 151 Eta Lup 16:01:31.8 -38:27:18 2.8 4.92 144 PPM 294827 16:15:43.9 -33:03:48 5.9 1.19 147 PPM 294806 16:14:34.6 -34:21:34 7.9 0.28 147 PPM 294788 16:13:49.0 -34:04:00 9.7 0.11 147 523682 16:13:35.9 -34:10:18 14.1 147 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 523682, (2021/02/22 21:05UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 8.53 151 Eta Lup 16:00:07.3 -38:23:48 2.8 4.92 144 PPM 294827 16:14:22.3 -33:00:40 5.9 1.19 147 PPM 294806 16:13:12.3 -34:18:25 7.9 0.28 147 PPM 294788 16:12:27.0 -34:00:50 9.7 0.11 147 523682 16:12:13.8 -34:07:07 14.1 147 Positions are for J2000
Event circumstances last updated at 2021/02/06 20:38:11 UT
Marc W. Buie, Southwest Research Institute