Event between (469514) 03QA91 and star UC4-411-136837 with event index number of 322673
Geocentric closest approach at 2019/08/28 22:12:38 UTC
J2000 position of star is 23:08:12.2 -07:52:24
Equinox of date position of star is 23:09:10.8 -07:46:16
Stellar brightness R=16.2,
use SENSEUP=128
Star is 149 degrees from the moon.
Moon is 4% illuminated.
TNO apparent brightness V=22.0
TNO is 44.2 AU from the Sun
and 43.2 AU from the Earth.
The TNO is moving 24.6
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 181 seconds.
The 1-sigma cross-track error in the shadow position is
2459 km.
The TNO has an absolute magnitude Hv=5.6
Diameter=457.1 km assuming a 5% albedo -- 18.6 sec chord
Diameter=186.6 km assuming a 30% albedo -- 7.6 sec chord
Dynamical classification is CLASSICAL
Star training set for 469514, (2019/08/28 22:13UT) Object RA Dec mag sep mel Fomalhaut 22:58:44.0 -29:31:03 1.2 21.89 153 81 Aqr 23:02:24.9 -06:57:19 6.1 1.87 150 PPM 207165 23:08:13.0 -07:35:18 8.0 0.31 149 PPM 207188 23:09:12.3 -07:42:08 9.5 0.06 149 469514 23:09:13.4 -07:46:00 16.2 148 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 469514, (2019/08/28 22:13UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.5 -29:37:23 1.2 21.89 153 81 Aqr 23:01:23.6 -07:03:40 6.1 1.87 150 PPM 207165 23:07:11.8 -07:41:42 8.0 0.31 149 PPM 207188 23:08:11.1 -07:48:32 9.5 0.06 149 469514 23:08:12.2 -07:52:24 16.2 149 Positions are for J2000
Event circumstances last updated at 2018/10/24 21:53:36 UT
Marc W. Buie, Southwest Research Institute