Event between (10370) Hylonome and star GA0700:29742082 with event index number of 201739
Geocentric closest approach at 2019/08/02 01:45:03 UTC
J2000 position of star is 18:47:46.8 -18:48:04
Equinox of date position of star is 18:48:55.2 -18:46:42
Stellar brightness G=15.0,
use SENSEUP=128
Star is 138 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=22.5
TNO is 24.4 AU from the Sun
and 23.5 AU from the Earth.
The TNO is moving 19.9
km/sec on the sky relative to the star, or,
4.2 arcsec/hr.
The 1-sigma error in the time of the event is 1385 seconds.
The 1-sigma cross-track error in the shadow position is
5068 km.
The TNO has an absolute magnitude Hv=8.6
Diameter=114.8 km assuming a 5% albedo -- 5.8 sec chord
Diameter=46.9 km assuming a 30% albedo -- 2.4 sec chord
Dynamical classification is CENTAURR
Star training set for 10370, (2019/08/02 01:45UT) Object RA Dec mag sep mel Antares 16:30:36.7 -26:28:26 0.9 32.72 107 Nunki 18:56:28.7 -26:16:15 2.0 7.69 140 PPM 234997 18:47:10.5 -19:35:03 6.3 0.91 138 PPM 235021 18:48:42.3 -18:43:54 8.5 0.07 138 10370 18:48:55.8 -18:46:42 15.0 138 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 10370, (2019/08/02 01:45UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 32.72 107 Nunki 18:55:15.9 -26:17:49 2.0 7.69 140 PPM 234997 18:46:01.2 -19:36:23 6.3 0.91 138 PPM 235021 18:47:33.4 -18:45:15 8.5 0.07 138 10370 18:47:46.8 -18:48:04 15.0 138 Positions are for J2000
Event circumstances last updated at 2019/06/07 22:30:02 UT
Marc W. Buie, Southwest Research Institute