Event between (469506) 03FF128 and star GA0660:10958692 with event index number of 1505628
Geocentric closest approach at 2025/09/16 14:59:35 UTC
J2000 position of star is 17:15:59.4 -22:43:16
Equinox of date position of star is 17:17:27.0 -22:44:47
Stellar brightness G=16.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 148 degrees from the moon.
Moon is 27% illuminated.
Apparent brightness V=22.0
Object is 31.0 AU from the Sun
and 31.1 AU from the Earth.
Apparent velocity is 8.3
km/sec on the sky relative to the star, or,
1.3 arcsec/hr.
The 1-sigma error in the time of the event is 555 seconds.
The 1-sigma cross-track error in the shadow position is
1670 km.
The object has an absolute magnitude Hv=6.9
Diameter=254.7 km assuming a 5% albedo -- 30.5 sec chord
Diameter=104.0 km assuming a 30% albedo -- 12.5 sec chord
Dynamical classification is 3:2E
Star training set for 469506, (2025/09/16 15:00UT) Object RA Dec mag sep mel Antares 16:30:59.3 -26:29:12 0.9 11.22 138 35Eta Oph 17:11:51.3 -15:45:18 2.6 7.12 144 40Xi Oph 17:22:32.9 -21:08:17 3.9 1.98 148 PPM 266547 17:13:56.7 -22:57:16 8.2 0.85 147 PPM 266617 17:17:11.4 -22:59:14 9.5 0.25 148 469506 17:17:32.6 -22:44:52 16.2 148 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 469506, (2025/09/16 15:00UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 11.22 138 35Eta Oph 17:10:22.7 -15:43:29 2.6 7.12 144 40Xi Oph 17:21:00.8 -21:06:51 3.9 1.98 148 PPM 266547 17:12:23.4 -22:55:31 8.2 0.85 147 PPM 266617 17:15:38.0 -22:57:37 9.5 0.25 148 469506 17:15:59.4 -22:43:16 16.2 148 Positions are for J2000
Event circumstances last updated at 2024/03/03 05:55:00 UT
Marc W. Buie, Southwest Research Institute