Event between (53311) Deucalion and star GA0700:05933450 with event index number of 1513689
Geocentric closest approach at 2026/06/16 12:28:13 UTC
J2000 position of star is 15:45:04.5 -19:52:48
Equinox of date position of star is 15:46:29.6 -19:57:19
Stellar brightness G=15.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 133 degrees from the moon.
Moon is 3% illuminated.
Apparent brightness V=23.0
Object is 42.3 AU from the Sun
and 41.4 AU from the Earth.
Apparent velocity is 21.7
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 227 seconds.
The 1-sigma cross-track error in the shadow position is
2562 km.
The object has an absolute magnitude Hv=6.7
Diameter=275.4 km assuming a 5% albedo -- 12.7 sec chord
Diameter=112.4 km assuming a 30% albedo -- 5.2 sec chord
Dynamical classification is CLASSICAL
Star training set for 53311, (2026/06/16 12:28UT) Object RA Dec mag sep mel Antares 16:31:02.0 -26:29:18 0.9 12.11 145 7Del Sco 16:01:54.2 -22:41:41 2.3 4.49 137 43Kap Lib 15:43:28.6 -19:45:45 4.7 0.76 132 PPM 230764 15:49:22.0 -19:46:56 8.5 0.67 134 PPM 264642 15:46:18.0 -20:08:06 9.6 0.19 133 53311 15:46:36.5 -19:57:41 15.6 133 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 53311, (2026/06/16 12:28UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 12.11 145 7Del Sco 16:00:20.0 -22:37:18 2.3 4.49 137 43Kap Lib 15:41:56.7 -19:40:46 4.7 0.76 132 PPM 230764 15:47:50.0 -19:42:09 8.5 0.67 134 PPM 264642 15:44:45.9 -20:03:13 9.6 0.19 133 53311 15:45:04.5 -19:52:48 15.6 133 Positions are for J2000
Event circumstances last updated at 2024/06/19 21:27:10 UT
Marc W. Buie, Southwest Research Institute