Event between (505624) 14GU53 and star GA0900:04909842 with event index number of 2451486
Geocentric closest approach at 2026/06/21 21:58:21 UTC
J2000 position of star is 16:58:03.5 +00:50:21
Equinox of date position of star is 16:59:18.3 +00:48:11
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 75 degrees from the moon.
Moon is 50% illuminated.
Apparent brightness V=21.6
Object is 37.4 AU from the Sun
and 36.5 AU from the Earth.
Apparent velocity is 23.1
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 74 seconds.
The 1-sigma cross-track error in the shadow position is
1326 km.
The object has an absolute magnitude Hv=5.8
Diameter=398.1 km assuming a 5% albedo -- 17.6 sec chord
Diameter=162.5 km assuming a 30% albedo -- 7.2 sec chord
Dynamical classification is SCATEXTD
Star training set for 505624, (2026/06/21 22:00UT) Object RA Dec mag sep mel Antares 16:31:02.1 -26:29:18 0.9 28.13 69 1Del Oph 16:15:44.1 -03:45:37 2.7 11.83 64 PPM 179990 17:06:54.2 -00:55:35 5.4 2.55 77 PPM 163235 16:54:44.5 +01:18:23 8.0 1.27 74 PPM 163283 16:57:29.5 +01:04:21 9.8 0.55 75 PPM 163295 16:58:00.1 +00:56:16 10.4 0.38 75 505624 16:59:24.4 +00:48:01 16.9 75 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 505624, (2026/06/21 22:00UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 28.13 69 1Del Oph 16:14:20.7 -03:41:43 2.7 11.83 64 PPM 179990 17:05:32.2 -00:53:32 5.4 2.55 77 PPM 163235 16:53:23.9 +01:20:54 8.0 1.27 74 PPM 163283 16:56:08.7 +01:06:46 9.8 0.55 75 PPM 163295 16:56:39.3 +00:58:40 10.4 0.38 75 505624 16:58:03.5 +00:50:21 16.9 75 Positions are for J2000
Event circumstances last updated at 2024/06/19 21:29:31 UT
Marc W. Buie, Southwest Research Institute