Event between (330836) Orius and star GA0500:32197151 with event index number of 278872
Geocentric closest approach at 2020/07/12 12:31:37 UTC
J2000 position of star is 19:20:20.5 -38:08:43
Equinox of date position of star is 19:21:43.6 -38:06:21
Stellar brightness G=16.8,
use SENSEUP=128
Star is 88 degrees from the moon.
Moon is 54% illuminated.
TNO apparent brightness V=22.7
TNO is 18.6 AU from the Sun
and 17.6 AU from the Earth.
The TNO is moving 22.6
km/sec on the sky relative to the star, or,
6.3 arcsec/hr.
The 1-sigma error in the time of the event is 829 seconds.
The 1-sigma cross-track error in the shadow position is
2724 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=63.1 km assuming a 5% albedo -- 2.7 sec chord
Diameter=25.8 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURR
Star training set for 330836, (2020/07/12 12:32UT) Object RA Dec mag sep mel Antares 16:30:40.2 -26:28:33 0.9 37.61 125 38Zet Sgr 19:03:55.0 -29:50:56 2.7 9.04 91 PPM 298679 19:13:33.0 -37:32:51 6.5 1.71 90 PPM 298814 19:19:36.4 -38:20:48 8.5 0.48 88 PPM 298872 19:21:47.5 -38:07:10 8.6 0.02 88 330836 19:21:43.9 -38:06:21 16.8 88 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 330836, (2020/07/12 12:32UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 37.61 125 38Zet Sgr 19:02:36.7 -29:52:49 2.7 9.04 91 PPM 298679 19:12:09.8 -37:34:59 6.5 1.71 90 PPM 298814 19:18:12.8 -38:23:07 8.5 0.48 88 PPM 298872 19:20:24.2 -38:09:33 8.6 0.02 88 330836 19:20:20.5 -38:08:43 16.8 88 Positions are for J2000
Event circumstances last updated at 2020/06/21 04:54:57 UT
Marc W. Buie, Southwest Research Institute