Event between (555916) 14GB54 and star GA0840:05037874 with event index number of 2485090
Geocentric closest approach at 2025/02/11 23:13:43 UTC
J2000 position of star is 16:32:53.1 -04:04:27
Equinox of date position of star is 16:34:09.9 -04:07:26
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 109 degrees from the moon.
Moon is 100% illuminated.
Apparent brightness V=22.5
Object is 28.3 AU from the Sun
and 28.5 AU from the Earth.
Apparent velocity is 17.4
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 99 seconds.
The 1-sigma cross-track error in the shadow position is
1394 km.
The object has an absolute magnitude Hv=7.8
Diameter=163.7 km assuming a 5% albedo -- 9.6 sec chord
Diameter=66.8 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is 3:2E+6:4II
Star training set for 555916, (2025/02/11 23:15UT) Object RA Dec mag sep mel Antares 16:30:57.1 -26:29:08 0.9 22.37 114 1Del Oph 16:15:39.9 -03:45:25 2.7 4.64 104 12 Oph 16:37:40.6 -02:22:34 5.8 1.95 109 PPM 199772 16:34:42.9 -04:18:49 7.8 0.23 109 PPM 199748 16:33:39.3 -04:14:29 9.4 0.18 109 555916 16:34:12.5 -04:07:32 16.8 109 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 555916, (2025/02/11 23:15UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 22.37 114 1Del Oph 16:14:20.7 -03:41:43 2.7 4.64 104 12 Oph 16:36:22.1 -02:19:35 5.8 1.95 109 PPM 199772 16:33:23.3 -04:15:44 7.8 0.23 109 PPM 199748 16:32:19.8 -04:11:22 9.4 0.18 109 555916 16:32:53.1 -04:04:27 16.8 109 Positions are for J2000
Event circumstances last updated at 2024/04/18 03:38:44 UT
Marc W. Buie, Southwest Research Institute