Event between 13GW141 and star GA0820:04344880 with event index number of 1571240
Geocentric closest approach at 2020/04/27 02:59:08 UTC
J2000 position of star is 13:18:10.4 -06:39:35
Equinox of date position of star is 13:19:13.5 -06:45:56
Stellar brightness G=16.2,
use SENSEUP=128
Star is 118 degrees from the moon.
Moon is 15% illuminated.
TNO apparent brightness V=24.0
TNO is 25.1 AU from the Sun
and 24.1 AU from the Earth.
The TNO is moving 22.1
km/sec on the sky relative to the star, or,
4.6 arcsec/hr.
The 1-sigma error in the time of the event is 107 seconds.
The 1-sigma cross-track error in the shadow position is
1331 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=141.3 km assuming a 5% albedo -- 2.7 sec chord
Diameter=57.7 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURS
Star training set for 13GW141, (2020/04/27 02:59UT) Object RA Dec mag sep mel Spica 13:26:16.0 -11:16:00 1.0 4.82 121 65 Vir 13:24:22.2 -05:01:49 5.9 2.16 119 PPM 196380 13:19:36.5 -06:22:20 7.9 0.40 118 PPM 196388 13:20:20.8 -06:46:31 9.3 0.28 118 13GW141 13:19:13.9 -06:45:58 16.2 118 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 13GW141, (2020/04/27 02:59UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 4.82 121 65 Vir 13:23:18.9 -04:55:28 5.9 2.16 119 PPM 196380 13:18:33.0 -06:15:57 7.9 0.40 118 PPM 196388 13:19:17.2 -06:40:08 9.3 0.28 118 13GW141 13:18:10.4 -06:39:35 16.2 118 Positions are for J2000
Event circumstances last updated at 2020/03/10 21:20:22 UT
Marc W. Buie, Southwest Research Institute