Event between (438028) 04EH96 and star GA0720:05436384 with event index number of 1402773
Geocentric closest approach at 2025/06/22 16:01:53 UTC
J2000 position of star is 15:13:13.6 -17:36:37
Equinox of date position of star is 15:14:36.6 -17:42:02
Stellar brightness G=15.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 175 degrees from the moon.
Moon is 11% illuminated.
Apparent brightness V=23.2
Object is 32.5 AU from the Sun
and 31.7 AU from the Earth.
Apparent velocity is 16.8
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 1001 seconds.
The 1-sigma cross-track error in the shadow position is
4564 km.
The object has an absolute magnitude Hv=8.0
Diameter=158.5 km assuming a 5% albedo -- 9.0 sec chord
Diameter=64.7 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is 3:2E
Star training set for 438028, (2025/06/22 16:02UT) Object RA Dec mag sep mel Antares 16:30:58.4 -26:29:11 0.9 19.70 164 27Bet Lib 15:18:22.9 -09:28:31 2.6 8.28 167 28 Lib 15:22:20.6 -18:14:57 6.4 1.90 175 26 Lib 15:16:00.3 -17:51:43 6.6 0.36 175 PPM 229941 15:15:35.8 -17:36:27 8.6 0.24 175 438028 15:14:40.1 -17:42:16 15.2 175 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 438028, (2025/06/22 16:02UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 19.70 164 27Bet Lib 15:17:00.3 -09:22:59 2.6 8.28 167 28 Lib 15:20:53.7 -18:09:32 6.4 1.90 175 26 Lib 15:14:33.7 -17:46:07 6.6 0.36 175 PPM 229941 15:14:09.3 -17:30:50 8.6 0.24 175 438028 15:13:13.6 -17:36:37 15.2 175 Positions are for J2000
Event circumstances last updated at 2024/06/13 03:56:08 UT
Marc W. Buie, Southwest Research Institute