Event between (590218) 11UD63 and star GA1180:00584854 with event index number of 2685157
Geocentric closest approach at 2023/01/22 15:33:52 UTC
J2000 position of star is 03:43:40.9 +29:08:26
Equinox of date position of star is 03:45:06.1 +29:12:44
Stellar brightness G=13.1,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 107 degrees from the moon.
Moon is 1% illuminated.
Apparent brightness V=21.1
Object is 16.2 AU from the Sun
and 15.7 AU from the Earth.
Apparent velocity is 9.0
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 80 seconds.
The 1-sigma cross-track error in the shadow position is
719 km.
The object has an absolute magnitude Hv=8.8
Diameter=105.2 km assuming a 5% albedo -- 11.8 sec chord
Diameter=42.9 km assuming a 30% albedo -- 4.8 sec chord
Dynamical classification is CENTAURR
Star training set for 590218, (2023/01/22 15:34UT) Object RA Dec mag sep mel Aldebaran 04:37:14.8 +16:33:14 0.8 17.42 116 44Zet Per 03:55:35.2 +31:57:01 2.8 3.55 110 PPM 068850 03:53:31.2 +31:14:09 6.3 2.72 110 PPM 092788 03:45:23.5 +29:45:16 8.4 0.55 108 PPM 092760 03:44:02.3 +29:19:06 9.6 0.26 107 590218 03:45:06.1 +29:12:44 13.1 108 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, (2023/01/22 15:34UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 17.42 116 44Zet Per 03:54:07.9 +31:53:01 2.8 3.55 110 PPM 068850 03:52:04.4 +31:10:06 6.3 2.72 110 PPM 092788 03:43:57.9 +29:40:59 8.4 0.55 108 PPM 092760 03:42:37.1 +29:14:47 9.6 0.26 107 590218 03:43:40.9 +29:08:26 13.1 107 Positions are for J2000
Event circumstances last updated at 2023/01/22 03:06:12 UT
Marc W. Buie, Southwest Research Institute