Event between (40314) 99KR16 and star UC4-421-065500 with event index number of 184490
Geocentric closest approach at 2019/04/05 20:12:43 UTC
J2000 position of star is 16:05:43.1 -05:52:52
Equinox of date position of star is 16:06:41.9 -05:55:47
Stellar brightness R=14.5,
use SENSEUP=128
Star is 140 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=21.0
TNO is 34.6 AU from the Sun
and 33.9 AU from the Earth.
The TNO is moving 17.0
km/sec on the sky relative to the star, or,
2.5 arcsec/hr.
The 1-sigma error in the time of the event is 155 seconds.
The 1-sigma cross-track error in the shadow position is
1556 km.
The TNO has an absolute magnitude Hv=5.5
Diameter=478.6 km assuming a 5% albedo -- 28.2 sec chord
Diameter=195.4 km assuming a 30% albedo -- 11.5 sec chord
Dynamical classification is SCATNEAR
Star training set for 40314, (2019/04/05 20:13UT) Object RA Dec mag sep mel Antares 16:30:35.5 -26:28:23 0.9 21.31 131 1Del Oph 16:15:21.4 -03:44:33 2.7 3.07 138 PPM 199284 16:07:01.5 -06:11:27 6.5 0.27 140 PPM 199279 16:06:36.2 -06:04:06 8.8 0.14 140 40314 16:06:44.6 -05:55:55 14.5 140 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 40314, (2019/04/05 20:13UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 21.31 131 1Del Oph 16:14:20.7 -03:41:42 2.7 3.07 138 PPM 199284 16:05:59.8 -06:08:23 6.5 0.27 140 PPM 199279 16:05:34.5 -06:01:02 8.8 0.14 140 40314 16:05:43.1 -05:52:52 14.5 140 Positions are for J2000
Event circumstances last updated at 2018/05/24 18:19:42 UT
Marc W. Buie, Southwest Research Institute