Event between (590218) 11UD63 and star GA1180:01787267 with event index number of 2685712
Geocentric closest approach at 2026/12/10 21:28:46 UTC
J2000 position of star is 05:47:44.5 +29:36:37
Equinox of date position of star is 05:49:16.3 +29:37:01
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 168 degrees from the moon.
Moon is 3% illuminated.
Apparent brightness V=20.2
Object is 14.2 AU from the Sun
and 13.2 AU from the Earth.
Apparent velocity is 22.0
km/sec on the sky relative to the star, or,
8.2 arcsec/hr.
The 1-sigma error in the time of the event is 87 seconds.
The 1-sigma cross-track error in the shadow position is
555 km.
The object has an absolute magnitude Hv=8.7
Diameter=105.2 km assuming a 5% albedo -- 4.9 sec chord
Diameter=42.9 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is CENTAURR
Star training set for 590218, (2026/12/10 21:28UT) Object RA Dec mag sep mel Aldebaran 04:37:28.2 +16:33:41 0.8 21.03 149 Alnath 05:27:59.8 +28:37:40 1.6 4.79 163 PPM 094619 05:41:01.2 +29:13:41 5.9 1.88 166 PPM 094872 05:49:08.2 +29:39:51 8.1 0.08 168 590218 05:49:27.8 +29:37:04 16.8 168 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, (2026/12/10 21:28UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 21.03 149 Alnath 05:26:17.6 +28:36:23 1.6 4.79 163 PPM 094619 05:39:18.3 +29:12:54 5.9 1.88 166 PPM 094872 05:47:24.9 +29:39:23 8.1 0.08 168 590218 05:47:44.5 +29:36:37 16.8 168 Positions are for J2000
Event circumstances last updated at 2023/12/07 04:33:28 UT
Marc W. Buie, Southwest Research Institute