Event between 13FN28 and star GA0740:04900898 with event index number of 359683
Geocentric closest approach at 2019/04/19 12:16:37 UTC
J2000 position of star is 12:49:57.0 -15:02:09
Equinox of date position of star is 12:50:57.3 -15:08:22
Stellar brightness G=15.7,
use SENSEUP=128
Star is 19 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=21.4
TNO is 20.4 AU from the Sun
and 19.4 AU from the Earth.
The TNO is moving 21.3
km/sec on the sky relative to the star, or,
5.4 arcsec/hr.
The 1-sigma error in the time of the event is 49 seconds.
The 1-sigma cross-track error in the shadow position is
850 km.
The TNO has an absolute magnitude Hv=8.3
Diameter=129.4 km assuming a 5% albedo -- 6.1 sec chord
Diameter=52.8 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is CENTAURR
Star training set for 13FN28, (2019/04/19 12:17UT) Object RA Dec mag sep mel Spica 13:26:12.7 -11:15:41 1.0 9.41 9 4Gam Crv 12:16:48.1 -17:38:56 2.6 8.57 27 PPM 226546 12:56:54.3 -15:25:52 6.2 1.46 17 PPM 226408 12:50:47.9 -15:11:01 6.9 0.06 19 13FN28 12:50:57.8 -15:08:26 15.7 18 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 13FN28, (2019/04/19 12:17UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 9.41 9 4Gam Crv 12:15:48.2 -17:32:31 2.6 8.57 27 PPM 226546 12:55:53.2 -15:19:37 6.2 1.46 17 PPM 226408 12:49:47.0 -15:04:44 6.9 0.06 19 13FN28 12:49:57.0 -15:02:09 15.7 19 Positions are for J2000
Event circumstances last updated at 2019/02/12 07:19:02 UT
Marc W. Buie, Southwest Research Institute