Event between (543454) 14HZ199 and star GA0720:05508105 with event index number of 2137547
Geocentric closest approach at 2026/07/10 22:33:02 UTC
J2000 position of star is 15:24:42.1 -17:08:01
Equinox of date position of star is 15:26:05.2 -17:13:08
Stellar brightness G=17.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 171 degrees from the moon.
Moon is 17% illuminated.
Apparent brightness V=21.4
Object is 42.4 AU from the Sun
and 41.8 AU from the Earth.
Apparent velocity is 13.0
km/sec on the sky relative to the star, or,
1.5 arcsec/hr.
The 1-sigma error in the time of the event is 124 seconds.
The 1-sigma cross-track error in the shadow position is
1593 km.
The object has an absolute magnitude Hv=5.0
Diameter=591.6 km assuming a 5% albedo -- 47.1 sec chord
Diameter=241.5 km assuming a 30% albedo -- 19.2 sec chord
Dynamical classification is SCATEXTD
Star training set for 543454, (2026/07/10 22:31UT) Object RA Dec mag sep mel Antares 16:31:02.3 -26:29:19 0.9 17.64 170 27Bet Lib 15:18:26.3 -09:28:45 2.6 7.97 163 32Zet1Lib 15:29:45.4 -16:48:26 5.6 0.95 171 PPM 230220 15:26:55.9 -17:11:10 8.4 0.18 171 PPM 230197 15:25:59.5 -17:05:18 9.2 0.15 170 543454 15:26:12.2 -17:13:33 17.0 171 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 543454, (2026/07/10 22:31UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 17.64 170 27Bet Lib 15:17:00.3 -09:22:59 2.6 7.97 163 32Zet1Lib 15:28:15.4 -16:43:00 5.6 0.95 171 PPM 230220 15:25:25.8 -17:05:39 8.4 0.18 171 PPM 230197 15:24:29.4 -16:59:46 9.2 0.15 170 543454 15:24:42.1 -17:08:01 17.0 171 Positions are for J2000
Event circumstances last updated at 2024/06/19 21:31:46 UT
Marc W. Buie, Southwest Research Institute