Event between (90568) 04GV9 and star GA0660:06851817 with event index number of 2309313
Geocentric closest approach at 2028/09/10 15:26:41 UTC
J2000 position of star is 15:57:05.5 -23:23:20
Equinox of date position of star is 15:58:33.0 -23:27:30
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 179 degrees from the moon.
Moon is 64% illuminated.
Apparent brightness V=20.2
Object is 40.2 AU from the Sun
and 40.4 AU from the Earth.
Apparent velocity is 13.4
km/sec on the sky relative to the star, or,
1.7 arcsec/hr.
The 1-sigma error in the time of the event is 175 seconds.
The 1-sigma cross-track error in the shadow position is
1519 km.
The object has an absolute magnitude Hv=4.0
Diameter=946.3 km assuming a 5% albedo -- 72.0 sec chord
Diameter=386.3 km assuming a 30% albedo -- 29.4 sec chord
Dynamical classification is SCATEXTD
Star training set for 90568, (2028/09/10 15:27UT) Object RA Dec mag sep mel Antares 16:31:10.3 -26:29:35 0.9 7.93 172 7Del Sco 16:02:02.1 -22:42:03 2.3 1.07 178 PPM 264830 15:55:38.7 -24:03:41 5.4 0.93 179 PPM 264924 15:59:31.5 -23:36:29 7.1 0.22 179 90568 15:58:48.1 -23:28:12 16.8 179 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, (2028/09/10 15:27UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 7.93 172 7Del Sco 16:00:20.0 -22:37:19 2.3 1.07 178 PPM 264830 15:53:55.9 -23:58:42 5.4 0.93 179 PPM 264924 15:57:48.8 -23:31:39 7.1 0.22 179 90568 15:57:05.5 -23:23:20 16.8 179 Positions are for J2000
Event circumstances last updated at 2024/06/24 21:33:58 UT
Marc W. Buie, Southwest Research Institute