Event between (542889) 13MY11 and star GA0680:36586095 with event index number of 1692924
Geocentric closest approach at 2020/12/04 07:50:19 UTC
J2000 position of star is 22:42:09.4 -21:19:29
Equinox of date position of star is 22:43:17.3 -21:12:53
Stellar brightness G=16.5,
use SENSEUP=128
Star is 143 degrees from the moon.
Moon is 86% illuminated.
TNO apparent brightness V=22.5
TNO is 23.8 AU from the Sun
and 23.9 AU from the Earth.
The TNO is moving 13.1
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 87 seconds.
The 1-sigma cross-track error in the shadow position is
1138 km.
The TNO has an absolute magnitude Hv=8.5
Diameter=120.2 km assuming a 5% albedo -- 9.2 sec chord
Diameter=49.1 km assuming a 30% albedo -- 3.8 sec chord
Dynamical classification is CENTAURR
Star training set for 542889, (2020/12/04 07:50UT) Object RA Dec mag sep mel Fomalhaut 22:58:48.2 -29:30:39 1.2 9.00 140 59Ups Aqr 22:35:50.1 -20:36:02 5.2 1.85 144 PPM 274164 22:43:58.2 -21:04:09 8.5 0.22 142 PPM 274159 22:43:47.1 -21:12:53 10.4 0.12 143 542889 22:43:17.3 -21:12:53 16.5 142 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 542889, (2020/12/04 07:50UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 9.00 140 59Ups Aqr 22:34:42.0 -20:42:33 5.2 1.85 144 PPM 274164 22:42:50.4 -21:10:45 8.5 0.22 142 PPM 274159 22:42:39.2 -21:19:29 10.4 0.12 143 542889 22:42:09.4 -21:19:29 16.5 143 Positions are for J2000
Event circumstances last updated at 2020/12/04 01:08:42 UT
Marc W. Buie, Southwest Research Institute