Event between 11WG157 and star GA1280:00821100 with event index number of 314871
Geocentric closest approach at 2019/01/03 23:00:12 UTC
J2000 position of star is 03:11:33.4 +39:36:29
Equinox of date position of star is 03:12:47.1 +39:40:42
Stellar brightness G=17.5,
use SENSEUP=128
Star is 147 degrees from the moon.
Moon is 4% illuminated.
TNO apparent brightness V=22.2
TNO is 30.7 AU from the Sun
and 30.1 AU from the Earth.
The TNO is moving 17.1
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 174 seconds.
The 1-sigma cross-track error in the shadow position is
3037 km.
The TNO has an absolute magnitude Hv=7.2
Diameter=213.8 km assuming a 5% albedo -- 12.5 sec chord
Diameter=87.3 km assuming a 30% albedo -- 5.1 sec chord
Dynamical classification is 1:1
Star training set for 11WG157, (2019/01/03 23:00UT) Object RA Dec mag sep mel Aldebaran 04:37:00.8 +16:32:46 0.8 29.50 170 Algol 03:09:24.8 +41:01:39 2.1 1.49 146 28Ome Per 03:12:31.4 +39:40:56 5.8 0.05 147 PPM 045956 03:15:23.0 +40:11:20 7.0 0.71 147 28Ome Per 03:12:31.4 +39:40:56 5.8 0.05 147 11WG157 03:12:47.5 +39:40:43 17.5 147 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 11WG157, (2019/01/03 23:00UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 29.50 170 Algol 03:08:10.1 +40:57:20 2.1 1.49 146 28Ome Per 03:11:17.3 +39:36:41 5.8 0.05 147 PPM 045956 03:14:08.5 +40:07:08 7.0 0.71 147 28Ome Per 03:11:17.3 +39:36:41 5.8 0.05 147 11WG157 03:11:33.4 +39:36:29 17.5 147 Positions are for J2000
Event circumstances last updated at 2018/12/04 05:05:46 UT
Marc W. Buie, Southwest Research Institute