Event between (550564) 12PU45 and star GA0780:22021005 with event index number of 2251311
Geocentric closest approach at 2027/09/16 18:45:58 UTC
J2000 position of star is 22:29:22.0 -10:00:06
Equinox of date position of star is 22:30:37.4 -09:52:45
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 28 degrees from the moon.
Moon is 99% illuminated.
Apparent brightness V=21.9
Object is 31.2 AU from the Sun
and 30.2 AU from the Earth.
Apparent velocity is 22.6
km/sec on the sky relative to the star, or,
3.7 arcsec/hr.
The 1-sigma error in the time of the event is 132 seconds.
The 1-sigma cross-track error in the shadow position is
1633 km.
The object has an absolute magnitude Hv=7.0
Diameter=233.4 km assuming a 5% albedo -- 10.5 sec chord
Diameter=95.3 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is CENTAURS
Star training set for 550564, (2027/09/16 18:48UT) Object RA Dec mag sep mel Fomalhaut 22:59:10.4 -29:28:28 1.2 20.70 38 PPM 206598 22:39:49.2 -07:45:10 6.0 3.06 25 PPM 206410 22:30:32.6 -09:35:57 8.0 0.27 28 PPM 206409 22:30:31.3 -09:48:09 9.4 0.09 28 550564 22:30:49.7 -09:51:33 16.9 28 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, (2027/09/16 18:48UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 20.70 38 PPM 206598 22:38:22.3 -07:53:51 6.0 3.06 25 PPM 206410 22:29:05.0 -09:44:30 8.0 0.27 28 PPM 206409 22:29:03.6 -09:56:42 9.4 0.09 28 550564 22:29:22.0 -10:00:06 16.9 28 Positions are for J2000
Event circumstances last updated at 2023/10/26 02:12:54 UT
Marc W. Buie, Southwest Research Institute