Event between (524834) 03YL179 and star GA1120:02043061 with event index number of 1593043
Geocentric closest approach at 2021/01/08 18:18:37 UTC
J2000 position of star is 06:21:10.1 +22:45:46
Equinox of date position of star is 06:22:26.3 +22:45:07
Stellar brightness G=15.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 135 degrees from the moon.
Moon is 24% illuminated.
TNO apparent brightness V=23.2
TNO is 38.7 AU from the Sun
and 37.8 AU from the Earth.
The TNO is moving 24.7
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 56 seconds.
The 1-sigma cross-track error in the shadow position is
1370 km.
The TNO has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 8.5 sec chord
Diameter=85.3 km assuming a 30% albedo -- 3.5 sec chord
Dynamical classification is CLASSICAL
Star training set for 524834, (2021/01/08 18:19UT) Object RA Dec mag sep mel Betelgeuse 05:56:18.6 +07:24:33 0.4 16.58 139 Alhena 06:38:55.6 +16:22:46 1.9 7.46 131 PPM 095944 06:26:49.6 +23:18:49 6.0 1.16 134 PPM 095893 06:24:48.1 +23:04:20 8.4 0.63 134 PPM 095839 06:23:04.6 +22:53:21 9.0 0.20 135 524834 06:22:26.5 +22:45:06 15.2 135 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 524834, (2021/01/08 18:19UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 16.58 139 Alhena 06:37:42.8 +16:23:57 1.9 7.46 131 PPM 095944 06:25:33.0 +23:19:37 6.0 1.16 134 PPM 095893 06:23:31.6 +23:05:04 8.4 0.63 134 PPM 095839 06:21:48.1 +22:54:03 9.0 0.20 135 524834 06:21:10.1 +22:45:46 15.2 135 Positions are for J2000
Event circumstances last updated at 2020/12/23 00:26:36 UT
Marc W. Buie, Southwest Research Institute