Event between (590218) 11UD63 and star GA1160:02624838 with event index number of 2686262
Geocentric closest approach at 2028/12/20 00:04:32 UTC
J2000 position of star is 06:56:12.4 +26:20:15
Equinox of date position of star is 06:57:41.4 +26:18:17
Stellar brightness G=16.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 146 degrees from the moon.
Moon is 16% illuminated.
Apparent brightness V=19.9
Object is 13.2 AU from the Sun
and 12.2 AU from the Earth.
Apparent velocity is 20.8
km/sec on the sky relative to the star, or,
8.5 arcsec/hr.
The 1-sigma error in the time of the event is 167 seconds.
The 1-sigma cross-track error in the shadow position is
1067 km.
The object has an absolute magnitude Hv=8.7
Diameter=105.2 km assuming a 5% albedo -- 5.2 sec chord
Diameter=42.9 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is CENTAURR
Star training set for 590218, (2028/12/20 00:03UT) Object RA Dec mag sep mel Pollux 07:47:05.4 +27:57:14 1.1 11.04 156 Alhena 06:39:23.1 +16:22:19 1.9 10.83 143 39 Gem 07:00:34.5 +26:02:24 6.5 0.63 147 PPM 096719 06:56:16.9 +26:29:31 7.9 0.43 146 PPM 096736 06:56:53.4 +26:10:36 9.8 0.28 146 590218 06:58:00.1 +26:17:52 16.3 147 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 590218, (2028/12/20 00:03UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 11.04 156 Alhena 06:37:42.8 +16:23:56 1.9 10.83 143 39 Gem 06:58:47.1 +26:04:53 6.5 0.63 147 PPM 096719 06:54:29.1 +26:31:50 7.9 0.43 146 PPM 096736 06:55:05.8 +26:12:56 9.8 0.28 146 590218 06:56:12.4 +26:20:15 16.3 146 Positions are for J2000
Event circumstances last updated at 2023/12/09 04:30:16 UT
Marc W. Buie, Southwest Research Institute