Event between (590218) 11UD63 and star GA1180:02442250 with event index number of 2685942
Geocentric closest approach at 2027/09/02 06:08:39 UTC
J2000 position of star is 06:25:04.4 +28:07:23
Equinox of date position of star is 06:26:35.0 +28:06:29
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 85 degrees from the moon.
Moon is 3% illuminated.
Apparent brightness V=20.5
Object is 13.8 AU from the Sun
and 14.2 AU from the Earth.
Apparent velocity is 21.0
km/sec on the sky relative to the star, or,
7.3 arcsec/hr.
The 1-sigma error in the time of the event is 126 seconds.
The 1-sigma cross-track error in the shadow position is
751 km.
The object has an absolute magnitude Hv=8.7
Diameter=105.2 km assuming a 5% albedo -- 5.1 sec chord
Diameter=42.9 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is CENTAURR
Star training set for 590218, (2027/09/02 06:10UT) Object RA Dec mag sep mel Pollux 07:47:00.6 +27:57:25 1.1 17.68 68 Alhena 06:39:18.6 +16:22:24 1.9 12.08 81 PPM 095923 06:26:38.8 +29:41:23 6.5 1.58 86 PPM 095925 06:26:44.1 +28:00:53 8.1 0.09 85 PPM 095932 06:26:59.5 +28:09:33 9.7 0.07 85 590218 06:26:49.1 +28:06:20 16.8 85 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, (2027/09/02 06:10UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 17.68 68 Alhena 06:37:42.8 +16:23:56 1.9 12.08 81 PPM 095923 06:24:52.7 +29:42:25 6.5 1.58 86 PPM 095925 06:24:59.4 +28:01:55 8.1 0.09 85 PPM 095932 06:25:14.7 +28:10:37 9.7 0.07 85 590218 06:25:04.4 +28:07:23 16.8 85 Positions are for J2000
Event circumstances last updated at 2023/12/08 04:30:30 UT
Marc W. Buie, Southwest Research Institute