Event between 14HW199 and star UC4-375-074684 with event index number of 135945
Geocentric closest approach at 2018/07/23 01:54:13 UTC
J2000 position of star is 15:58:58.6 -15:07:34
Equinox of date position of star is 15:59:59.4 -15:10:35
Stellar brightness R=14.6,
use SENSEUP=128
Star is 7 degrees from the moon.
Moon is 81% illuminated.
TNO apparent brightness V=21.9
TNO is 39.4 AU from the Sun
and 38.9 AU from the Earth.
The TNO is moving 10.0
km/sec on the sky relative to the star, or,
1.3 arcsec/hr.
The 1-sigma error in the time of the event is 4383 seconds.
The 1-sigma cross-track error in the shadow position is
5118 km.
The TNO has an absolute magnitude Hv=5.8
Diameter=415.0 km assuming a 5% albedo -- 41.4 sec chord
Diameter=169.4 km assuming a 30% albedo -- 16.9 sec chord
Dynamical classification is SCATEXTD
Star training set for 14HW199, (2018/07/23 01:54UT) Object RA Dec mag sep mel Antares 16:30:32.9 -26:28:18 0.9 13.35 9 8Bet1Sco 16:06:31.1 -19:51:17 2.6 4.93 6 PPM 230971 15:57:36.2 -14:52:57 6.4 0.66 8 PPM 231031 15:59:35.0 -15:17:28 9.1 0.16 7 14HW199 16:00:01.5 -15:10:41 14.6 7 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 14HW199, (2018/07/23 01:54UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 13.35 9 8Bet1Sco 16:05:26.2 -19:48:20 2.6 4.93 6 PPM 230971 15:56:33.4 -14:49:47 6.4 0.66 8 PPM 231031 15:58:32.1 -15:14:21 9.1 0.16 7 14HW199 15:58:58.6 -15:07:34 14.6 7 Positions are for J2000
Event circumstances last updated at 2017/12/05 18:49:27 UT
Marc W. Buie, Southwest Research Institute