Event between 12DR30 and star GA0240:03149865 with event index number of 190868
Geocentric closest approach at 2019/05/31 15:47:02 UTC
J2000 position of star is 08:42:40.9 -65:07:42
Equinox of date position of star is 08:42:57.8 -65:11:52
Stellar brightness G=16.6,
use SENSEUP=128
Star is 100 degrees from the moon.
Moon is 9% illuminated.
TNO apparent brightness V=20.3
TNO is 19.5 AU from the Sun
and 19.3 AU from the Earth.
The TNO is moving 20.4
km/sec on the sky relative to the star, or,
5.2 arcsec/hr.
The 1-sigma error in the time of the event is 196 seconds.
The 1-sigma cross-track error in the shadow position is
3701 km.
The TNO has an absolute magnitude Hv=7.1
Diameter=227.0 km assuming a 5% albedo -- 11.1 sec chord
Diameter=92.7 km assuming a 30% albedo -- 4.6 sec chord
Dynamical classification is CENTAURS
Star training set for 12DR30, (2019/05/31 15:47UT) Object RA Dec mag sep mel Canopus 06:24:23.0 -52:42:25 -0.7 21.37 80 Bet Car 09:13:24.3 -69:47:51 1.7 5.43 103 PPM 356907 08:44:45.9 -65:53:46 6.0 0.72 100 PPM 356883 08:42:40.8 -65:18:31 8.4 0.11 100 12DR30 08:42:58.1 -65:11:56 16.6 100 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 12DR30, (2019/05/31 15:47UT) Object RA Dec mag sep mel Canopus 06:23:57.2 -52:41:44 -0.7 21.37 80 Bet Car 09:13:11.4 -69:43:00 1.7 5.43 103 PPM 356907 08:44:29.8 -65:49:30 6.0 0.72 100 PPM 356883 08:42:23.9 -65:14:17 8.4 0.11 100 12DR30 08:42:40.9 -65:07:42 16.6 100 Positions are for J2000
Event circumstances last updated at 2019/02/12 08:15:18 UT
Marc W. Buie, Southwest Research Institute