Event between (60608) 00EE173 and star GA0660:06303799 with event index number of 2248935
Geocentric closest approach at 2023/04/21 22:58:51 UTC
J2000 position of star is 14:59:43.2 -22:53:16
Equinox of date position of star is 15:01:04.1 -22:58:46
Stellar brightness G=16.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 174 degrees from the moon.
Moon is 4% illuminated.
Apparent brightness V=22.8
Object is 27.2 AU from the Sun
and 26.2 AU from the Earth.
Apparent velocity is 21.7
km/sec on the sky relative to the star, or,
4.1 arcsec/hr.
The 1-sigma error in the time of the event is 90 seconds.
The 1-sigma cross-track error in the shadow position is
1065 km.
The object has an absolute magnitude Hv=8.5
Diameter=121.9 km assuming a 5% albedo -- 5.6 sec chord
Diameter=49.8 km assuming a 30% albedo -- 2.3 sec chord
Dynamical classification is CENTAURR
Star training set for 60608, (2023/04/21 22:59UT) Object RA Dec mag sep mel Antares 16:30:50.4 -26:28:54 0.9 20.66 164 7Del Sco 16:01:42.9 -22:41:10 2.3 13.97 171 PPM 263889 15:11:13.2 -24:04:25 6.5 2.57 175 PPM 263665 15:01:51.4 -22:56:26 7.7 0.19 174 60608 15:01:04.2 -22:58:46 16.4 174 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 60608, (2023/04/21 22:59UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 20.66 164 7Del Sco 16:00:20.0 -22:37:19 2.3 13.97 171 PPM 263889 15:09:51.3 -23:59:10 6.5 2.57 175 PPM 263665 15:00:30.4 -22:50:58 7.7 0.19 174 60608 14:59:43.2 -22:53:16 16.4 174 Positions are for J2000
Event circumstances last updated at 2023/04/20 03:42:06 UT
Marc W. Buie, Southwest Research Institute