Event between (471155) 10GF65 and star GA0540:21579937 with event index number of 2235081
Geocentric closest approach at 2024/09/23 23:47:20 UTC
J2000 position of star is 17:44:49.2 -35:47:16
Equinox of date position of star is 17:46:27.9 -35:47:47
Stellar brightness G=16.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 171 degrees from the moon.
Moon is 59% illuminated.
Apparent brightness V=21.0
Object is 22.3 AU from the Sun
and 22.3 AU from the Earth.
Apparent velocity is 11.7
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 913 seconds.
The 1-sigma cross-track error in the shadow position is
4860 km.
The object has an absolute magnitude Hv=7.3
Diameter=229.1 km assuming a 5% albedo -- 18.0 sec chord
Diameter=93.5 km assuming a 30% albedo -- 7.4 sec chord
Dynamical classification is CENTAURR
Star training set for 471155, (2024/09/23 23:47UT) Object RA Dec mag sep mel Antares 16:30:55.7 -26:29:05 0.9 18.61 168 34Ups Sco 17:32:26.9 -37:18:47 2.7 3.20 171 PPM 296710 17:44:32.0 -36:57:20 5.4 1.22 170 PPM 296752 17:46:41.7 -35:32:26 7.3 0.26 171 PPM 296744 17:45:58.8 -35:42:01 9.2 0.14 171 471155 17:46:29.1 -35:47:47 16.0 171 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, (2024/09/23 23:47UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 18.61 168 34Ups Sco 17:30:45.8 -37:17:46 2.7 3.20 171 PPM 296710 17:42:51.1 -36:56:45 5.4 1.22 170 PPM 296752 17:45:02.1 -35:31:55 7.3 0.26 171 PPM 296744 17:44:19.0 -35:41:29 9.2 0.14 171 471155 17:44:49.2 -35:47:16 16.0 171 Positions are for J2000
Event circumstances last updated at 2024/06/11 03:50:39 UT
Marc W. Buie, Southwest Research Institute