Event between 13HX156 and star GA0840:04774043 with event index number of 264795
Geocentric closest approach at 2020/02/15 14:38:51 UTC
J2000 position of star is 15:55:28.0 -05:17:25
Equinox of date position of star is 15:56:29.5 -05:20:45
Stellar brightness G=15.3,
use SENSEUP=128
Star is 12 degrees from the moon.
Moon is 54% illuminated.
TNO apparent brightness V=22.9
TNO is 28.8 AU from the Sun
and 28.9 AU from the Earth.
The TNO is moving 9.7
km/sec on the sky relative to the star, or,
1.7 arcsec/hr.
The 1-sigma error in the time of the event is 244 seconds.
The 1-sigma cross-track error in the shadow position is
2526 km.
The TNO has an absolute magnitude Hv=8.1
Diameter=145.9 km assuming a 5% albedo -- 15.0 sec chord
Diameter=59.6 km assuming a 30% albedo -- 6.1 sec chord
Dynamical classification is CENTAURR
Star training set for 13HX156, (2020/02/15 14:39UT) Object RA Dec mag sep mel Antares 16:30:38.7 -26:28:30 0.9 22.64 19 1Del Oph 16:15:24.1 -03:44:41 2.7 4.97 17 PPM 198970 15:50:00.2 -03:52:45 6.0 2.19 13 PPM 199186 16:01:20.4 -05:08:15 8.5 1.22 13 PPM 199101 15:57:35.6 -05:11:57 9.8 0.30 13 13HX156 15:56:32.0 -05:20:53 15.3 12 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 13HX156, (2020/02/15 14:39UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 22.64 19 1Del Oph 16:14:20.7 -03:41:42 2.7 4.97 17 PPM 198970 15:48:56.7 -03:49:07 6.0 2.19 13 PPM 199186 16:00:16.5 -05:04:54 8.5 1.22 13 PPM 199101 15:56:31.6 -05:08:31 9.8 0.30 13 13HX156 15:55:28.0 -05:17:25 15.3 12 Positions are for J2000
Event circumstances last updated at 2019/04/25 23:23:00 UT
Marc W. Buie, Southwest Research Institute