Event between (530838) 11UC411 and star GA1120:00377026 with event index number of 1598863
Geocentric closest approach at 2020/12/23 14:03:30 UTC
J2000 position of star is 03:13:18.3 +22:03:18
Equinox of date position of star is 03:14:31.3 +22:07:57
Stellar brightness G=14.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 33 degrees from the moon.
Moon is 65% illuminated.
TNO apparent brightness V=22.8
TNO is 29.8 AU from the Sun
and 29.0 AU from the Earth.
The TNO is moving 17.1
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 61 seconds.
The 1-sigma cross-track error in the shadow position is
1052 km.
The TNO has an absolute magnitude Hv=8.0
Diameter=151.4 km assuming a 5% albedo -- 8.8 sec chord
Diameter=61.8 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is 3:2E
Star training set for 530838, (2020/12/23 14:03UT) Object RA Dec mag sep mel Aldebaran 04:37:07.6 +16:32:59 0.8 20.25 50 44Zet Per 03:55:27.4 +31:56:39 2.8 13.38 46 58Zet Ari 03:16:06.7 +21:07:15 4.9 1.08 33 PPM 092277 03:12:32.5 +22:14:55 8.0 0.47 33 PPM 092298 03:13:58.9 +21:59:28 9.3 0.19 33 530838 03:14:31.3 +22:07:57 14.7 34 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 530838, (2020/12/23 14:03UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 20.25 50 44Zet Per 03:54:07.9 +31:53:01 2.8 13.38 46 58Zet Ari 03:14:54.0 +21:02:39 4.9 1.08 33 PPM 092277 03:11:19.5 +22:10:14 8.0 0.47 33 PPM 092298 03:12:45.9 +21:54:49 9.3 0.19 33 530838 03:13:18.3 +22:03:18 14.7 33 Positions are for J2000
Event circumstances last updated at 2020/12/23 00:14:26 UT
Marc W. Buie, Southwest Research Institute