Event between (469506) 03FF128 and star GA0660:11281128 with event index number of 1505647
Geocentric closest approach at 2025/10/13 16:04:06 UTC
J2000 position of star is 17:17:49.7 -22:45:45
Equinox of date position of star is 17:19:17.4 -22:47:13
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 151 degrees from the moon.
Moon is 51% illuminated.
Apparent brightness V=22.0
Object is 31.0 AU from the Sun
and 31.5 AU from the Earth.
Apparent velocity is 21.2
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 228 seconds.
The 1-sigma cross-track error in the shadow position is
1354 km.
The object has an absolute magnitude Hv=6.9
Diameter=254.7 km assuming a 5% albedo -- 12.0 sec chord
Diameter=104.0 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is 3:2E
Star training set for 469506, (2025/10/13 16:04UT) Object RA Dec mag sep mel Antares 16:30:59.6 -26:29:13 0.9 11.60 140 35Eta Oph 17:11:51.5 -15:45:18 2.6 7.25 147 40Xi Oph 17:22:33.2 -21:08:17 3.9 1.81 151 PPM 266748 17:23:22.5 -22:46:31 8.2 0.92 151 PPM 266651 17:19:21.3 -22:37:38 9.7 0.16 150 469506 17:19:23.2 -22:47:18 16.6 151 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, (2025/10/13 16:04UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 11.60 140 35Eta Oph 17:10:22.7 -15:43:29 2.6 7.25 147 40Xi Oph 17:21:00.8 -21:06:51 3.9 1.81 151 PPM 266748 17:21:48.9 -22:45:07 8.2 0.92 151 PPM 266651 17:17:47.9 -22:36:05 9.7 0.16 150 469506 17:17:49.7 -22:45:45 16.6 150 Positions are for J2000
Event circumstances last updated at 2024/03/03 06:00:00 UT
Marc W. Buie, Southwest Research Institute