Event between 13HY156 and star GA0820:04773194 with event index number of 264819
Geocentric closest approach at 2019/01/23 19:02:30 UTC
J2000 position of star is 15:33:21.1 -06:12:09
Equinox of date position of star is 15:34:21.5 -06:15:55
Stellar brightness G=14.5,
use SENSEUP=128
Star is 72 degrees from the moon.
Moon is 90% illuminated.
TNO apparent brightness V=22.7
TNO is 38.3 AU from the Sun
and 38.7 AU from the Earth.
The TNO is moving 15.6
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 342 seconds.
The 1-sigma cross-track error in the shadow position is
3510 km.
The TNO has an absolute magnitude Hv=6.7
Diameter=276.7 km assuming a 5% albedo -- 17.7 sec chord
Diameter=113.0 km assuming a 30% albedo -- 7.2 sec chord
Dynamical classification is SCATEXTD
Star training set for 13HY156, (2019/01/23 19:02UT) Object RA Dec mag sep mel Antares 16:30:34.8 -26:28:22 0.9 24.24 90 27Bet Lib 15:18:02.1 -09:27:08 2.6 5.15 69 PPM 198725 15:35:28.4 -09:14:47 5.6 2.99 73 PPM 198756 15:37:13.6 -06:27:05 8.1 0.73 73 PPM 198688 15:33:40.1 -06:14:18 9.5 0.18 72 13HY156 15:34:22.0 -06:15:57 14.5 73 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 13HY156, (2019/01/23 19:02UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 24.24 90 27Bet Lib 15:17:00.3 -09:22:59 2.6 5.15 69 PPM 198725 15:34:26.5 -09:11:01 5.6 2.99 73 PPM 198756 15:36:12.7 -06:23:22 8.1 0.73 73 PPM 198688 15:32:39.2 -06:10:29 9.5 0.18 72 13HY156 15:33:21.1 -06:12:09 14.5 72 Positions are for J2000
Event circumstances last updated at 2018/12/04 05:11:04 UT
Marc W. Buie, Southwest Research Institute