Event between (496315) 13GP136 and star GA0800:04599602 with event index number of 207517
Geocentric closest approach at 2019/02/22 03:52:25 UTC
J2000 position of star is 14:46:12.0 -09:07:09
Equinox of date position of star is 14:47:13.5 -09:11:55
Stellar brightness G=15.5,
use SENSEUP=128
Star is 33 degrees from the moon.
Moon is 91% illuminated.
TNO apparent brightness V=23.1
TNO is 43.6 AU from the Sun
and 43.2 AU from the Earth.
The TNO is moving 8.5
km/sec on the sky relative to the star, or,
1.0 arcsec/hr.
The 1-sigma error in the time of the event is 305 seconds.
The 1-sigma cross-track error in the shadow position is
4108 km.
The TNO has an absolute magnitude Hv=6.6
Diameter=288.4 km assuming a 5% albedo -- 34.1 sec chord
Diameter=117.7 km assuming a 30% albedo -- 13.9 sec chord
Dynamical classification is SCATNEAR
Star training set for 496315, (2019/02/22 03:52UT) Object RA Dec mag sep mel Spica 13:26:12.3 -11:15:38 1.0 20.04 17 27Bet Lib 15:18:02.4 -09:27:09 2.6 7.61 41 13Xi 1Lib 14:55:25.4 -11:58:32 5.9 3.43 36 PPM 197931 14:49:33.8 -09:14:04 8.4 0.58 34 PPM 197916 14:48:16.7 -09:08:20 9.4 0.27 34 496315 14:47:13.6 -09:11:55 15.5 34 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 496315, (2019/02/22 03:52UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 20.04 17 27Bet Lib 15:17:00.3 -09:22:59 2.6 7.61 41 13Xi 1Lib 14:54:22.8 -11:53:54 5.9 3.43 36 PPM 197931 14:48:32.2 -09:09:20 8.4 0.58 34 PPM 197916 14:47:15.1 -09:03:34 9.4 0.27 34 496315 14:46:12.0 -09:07:09 15.5 33 Positions are for J2000
Event circumstances last updated at 2019/02/12 06:15:57 UT
Marc W. Buie, Southwest Research Institute