Event between (471155) 10GF65 and star GA0540:29390077 with event index number of 2236915
Geocentric closest approach at 2025/10/16 09:18:29 UTC
J2000 position of star is 18:06:21.7 -35:38:35
Equinox of date position of star is 18:08:00.4 -35:38:20
Stellar brightness G=16.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 126 degrees from the moon.
Moon is 24% illuminated.
Apparent brightness V=21.0
Object is 22.2 AU from the Sun
and 22.5 AU from the Earth.
Apparent velocity is 19.6
km/sec on the sky relative to the star, or,
4.3 arcsec/hr.
The 1-sigma error in the time of the event is 712 seconds.
The 1-sigma cross-track error in the shadow position is
3819 km.
The object has an absolute magnitude Hv=7.3
Diameter=229.1 km assuming a 5% albedo -- 10.8 sec chord
Diameter=93.5 km assuming a 30% albedo -- 4.4 sec chord
Dynamical classification is CENTAURR
Star training set for 471155, (2025/10/16 09:18UT) Object RA Dec mag sep mel Antares 16:30:59.6 -26:29:13 0.9 22.64 105 Kap Sco 17:44:16.4 -39:02:26 2.4 5.83 120 PPM 297246 18:08:08.3 -36:00:55 6.1 0.38 126 PPM 297227 18:07:26.9 -35:40:33 8.3 0.14 125 471155 18:08:05.7 -35:38:19 16.5 126 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, (2025/10/16 09:18UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 22.64 105 Kap Sco 17:42:29.3 -39:01:49 2.4 5.83 120 PPM 297246 18:06:24.0 -36:01:12 6.1 0.38 126 PPM 297227 18:05:42.8 -35:40:48 8.3 0.14 125 471155 18:06:21.7 -35:38:35 16.5 126 Positions are for J2000
Event circumstances last updated at 2024/06/18 02:55:02 UT
Marc W. Buie, Southwest Research Institute