Event between (90568) 04GV9 and star GA0640:06737519 with event index number of 181763
Geocentric closest approach at 2019/02/08 10:20:56 UTC
J2000 position of star is 15:07:52.1 -25:53:14
Equinox of date position of star is 15:08:59.8 -25:57:35
Stellar brightness G=15.0,
use SENSEUP=128
Star is 125 degrees from the moon.
Moon is 11% illuminated.
TNO apparent brightness V=19.9
TNO is 39.6 AU from the Sun
and 39.6 AU from the Earth.
The TNO is moving 6.7
km/sec on the sky relative to the star, or,
0.8 arcsec/hr.
The 1-sigma error in the time of the event is 655 seconds.
The 1-sigma cross-track error in the shadow position is
3166 km.
The TNO has an absolute magnitude Hv=3.8
Diameter=1047.2 km assuming a 5% albedo -- 156.9 sec chord
Diameter=427.5 km assuming a 30% albedo -- 64.0 sec chord
Dynamical classification is SCATEXTD
Star training set for 90568, (2019/02/08 10:21UT) Object RA Dec mag sep mel Antares 16:30:34.9 -26:28:22 0.9 18.29 108 7Del Sco 16:01:28.0 -22:40:29 2.3 12.39 115 20Sig Lib 15:05:11.6 -25:21:21 3.3 1.05 126 PPM 263798 15:07:29.4 -26:10:50 8.0 0.40 125 PPM 263836 15:08:55.2 -25:50:30 9.5 0.12 125 90568 15:08:59.9 -25:57:35 15.0 125 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 90568, (2019/02/08 10:21UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 18.29 108 7Del Sco 16:00:20.0 -22:37:18 2.3 12.39 115 20Sig Lib 15:04:04.1 -25:16:56 3.3 1.05 126 PPM 263798 15:06:21.6 -26:06:27 8.0 0.40 125 PPM 263836 15:07:47.4 -25:46:10 9.5 0.12 125 90568 15:07:52.1 -25:53:14 15.0 125 Positions are for J2000
Event circumstances last updated at 2019/01/31 18:03:11 UT
Marc W. Buie, Southwest Research Institute