Event between 15KK178 and star GA0720:07531731 with event index number of 1992859
Geocentric closest approach at 2023/02/24 10:18:46 UTC
J2000 position of star is 17:10:02.9 -16:21:07
Equinox of date position of star is 17:11:22.5 -16:22:45
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 133 degrees from the moon.
Moon is 22% illuminated.
Apparent brightness V=22.4
Object is 37.1 AU from the Sun
and 37.3 AU from the Earth.
Apparent velocity is 12.6
km/sec on the sky relative to the star, or,
1.7 arcsec/hr.
The 1-sigma error in the time of the event is 344 seconds.
The 1-sigma cross-track error in the shadow position is
1858 km.
The object has an absolute magnitude Hv=6.5
Diameter=306.2 km assuming a 5% albedo -- 24.3 sec chord
Diameter=125.0 km assuming a 30% albedo -- 9.9 sec chord
Dynamical classification is SCATEXTD
Star training set for 15KK178, (2023/02/24 10:19UT) Object RA Dec mag sep mel Antares 16:30:49.8 -26:28:53 0.9 13.81 141 35Eta Oph 17:11:42.4 -15:45:07 2.6 0.63 133 PPM 232651 17:09:35.6 -17:38:16 6.0 1.33 133 PPM 232687 17:11:10.4 -16:20:26 8.5 0.06 133 15KK178 17:11:23.0 -16:22:46 16.9 132 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 15KK178, (2023/02/24 10:19UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 13.81 141 35Eta Oph 17:10:22.7 -15:43:29 2.6 0.63 133 PPM 232651 17:08:14.9 -17:36:33 6.0 1.33 133 PPM 232687 17:09:50.4 -16:18:47 8.5 0.06 133 15KK178 17:10:02.9 -16:21:07 16.9 133 Positions are for J2000
Event circumstances last updated at 2023/01/08 03:30:45 UT
Marc W. Buie, Southwest Research Institute