Event between (516977) 12HZ84 and star GA0700:32719678 with event index number of 267029
Geocentric closest approach at 2019/07/05 15:01:30 UTC
J2000 position of star is 19:17:19.8 -19:20:30
Equinox of date position of star is 19:18:28.1 -19:18:20
Stellar brightness G=14.9,
use SENSEUP=128
Star is 146 degrees from the moon.
Moon is 11% illuminated.
TNO apparent brightness V=24.9
TNO is 40.0 AU from the Sun
and 39.0 AU from the Earth.
The TNO is moving 24.2
km/sec on the sky relative to the star, or,
3.1 arcsec/hr.
The 1-sigma error in the time of the event is 356 seconds.
The 1-sigma cross-track error in the shadow position is
2594 km.
The TNO has an absolute magnitude Hv=8.9
Diameter=100.0 km assuming a 5% albedo -- 4.1 sec chord
Diameter=40.8 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is SCATNEAR
Star training set for 516977, (2019/07/05 15:01UT) Object RA Dec mag sep mel Antares 16:30:36.4 -26:28:25 0.9 39.15 108 Nunki 18:56:28.4 -26:16:15 2.0 8.61 141 43 Sgr 19:18:46.5 -18:55:00 4.9 0.40 146 PPM 235750 19:17:50.4 -19:16:19 8.2 0.15 146 516977 19:18:28.4 -19:18:19 14.9 146 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 516977, (2019/07/05 15:01UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 39.15 108 Nunki 18:55:15.9 -26:17:49 2.0 8.61 141 43 Sgr 19:17:38.1 -18:57:11 4.9 0.40 146 PPM 235750 19:16:41.8 -19:18:28 8.2 0.15 146 516977 19:17:19.8 -19:20:30 14.9 146 Positions are for J2000
Event circumstances last updated at 2019/06/07 22:22:28 UT
Marc W. Buie, Southwest Research Institute