Event between (471155) 10GF65 and star GA0520:18178255 with event index number of 2233140
Geocentric closest approach at 2023/05/27 20:34:12 UTC
J2000 position of star is 17:35:59.5 -36:13:42
Equinox of date position of star is 17:37:33.8 -36:14:29
Stellar brightness G=16.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 107 degrees from the moon.
Moon is 52% illuminated.
Apparent brightness V=20.8
Object is 22.5 AU from the Sun
and 21.5 AU from the Earth.
Apparent velocity is 20.6
km/sec on the sky relative to the star, or,
4.8 arcsec/hr.
The 1-sigma error in the time of the event is 485 seconds.
The 1-sigma cross-track error in the shadow position is
1125 km.
The object has an absolute magnitude Hv=7.3
Diameter=229.1 km assuming a 5% albedo -- 10.2 sec chord
Diameter=93.5 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is CENTAURR
Star training set for 471155, (2023/05/27 20:34UT) Object RA Dec mag sep mel Antares 16:30:50.8 -26:28:55 0.9 17.23 91 34Ups Sco 17:32:21.4 -37:18:44 2.7 1.50 106 PPM 296389 17:30:31.2 -36:47:44 6.1 1.52 106 PPM 296531 17:37:01.9 -36:31:02 8.1 0.30 107 PPM 296549 17:37:44.3 -36:14:07 9.2 0.03 107 471155 17:37:34.2 -36:14:29 16.1 107 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 471155, (2023/05/27 20:34UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 17.23 91 34Ups Sco 17:30:45.8 -37:17:46 2.7 1.50 106 PPM 296389 17:28:56.1 -36:46:42 6.1 1.52 106 PPM 296531 17:35:26.9 -36:30:14 8.1 0.30 107 PPM 296549 17:36:09.5 -36:13:20 9.2 0.03 107 471155 17:35:59.5 -36:13:42 16.1 107 Positions are for J2000
Event circumstances last updated at 2023/04/19 02:35:37 UT
Marc W. Buie, Southwest Research Institute