Event between (550564) 12PU45 and star GA0780:22037812 with event index number of 2664297
Geocentric closest approach at 2028/12/27 04:19:10 UTC
J2000 position of star is 22:37:36.8 -10:26:30
Equinox of date position of star is 22:38:52.1 -10:19:03
Stellar brightness G=14.1,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 65 degrees from the moon.
Moon is 79% illuminated.
Apparent brightness V=22.2
Object is 31.2 AU from the Sun
and 31.7 AU from the Earth.
Apparent velocity is 20.1
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 180 seconds.
The 1-sigma cross-track error in the shadow position is
1642 km.
The object has an absolute magnitude Hv=7.0
Diameter=233.4 km assuming a 5% albedo -- 11.8 sec chord
Diameter=95.3 km assuming a 30% albedo -- 4.8 sec chord
Dynamical classification is CENTAURS
Star training set for 550564, (2028/12/27 04:14UT) Object RA Dec mag sep mel Fomalhaut 22:59:14.6 -29:28:04 1.2 19.74 71 PPM 206598 22:39:53.3 -07:44:46 6.0 2.55 64 PPM 240438 22:35:12.9 -10:22:15 8.5 0.97 66 PPM 240525 22:38:45.7 -10:07:08 8.7 0.20 65 550564 22:39:08.4 -10:17:25 14.1 65 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 550564, (2028/12/27 04:14UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 19.74 71 PPM 206598 22:38:22.3 -07:53:51 6.0 2.55 64 PPM 240438 22:33:41.1 -10:31:16 8.5 0.97 66 PPM 240525 22:37:14.1 -10:16:12 8.7 0.20 65 550564 22:37:36.8 -10:26:30 14.1 65 Positions are for J2000
Event circumstances last updated at 2023/10/28 01:05:31 UT
Marc W. Buie, Southwest Research Institute