Event between (471151) 10FD49 and star GA0740:05395281 with event index number of 2265000
Geocentric closest approach at 2025/09/08 08:55:19 UTC
J2000 position of star is 15:13:42.0 -15:10:06
Equinox of date position of star is 15:15:03.9 -15:15:30
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 124 degrees from the moon.
Moon is 99% illuminated.
Apparent brightness V=21.7
Object is 32.7 AU from the Sun
and 33.1 AU from the Earth.
Apparent velocity is 19.3
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 74 seconds.
The 1-sigma cross-track error in the shadow position is
1297 km.
The object has an absolute magnitude Hv=6.4
Diameter=307.6 km assuming a 5% albedo -- 16.2 sec chord
Diameter=125.6 km assuming a 30% albedo -- 6.6 sec chord
Dynamical classification is 5:2EEE
Star training set for 471151, (2025/09/08 08:53UT) Object RA Dec mag sep mel Antares 16:30:59.2 -26:29:12 0.9 20.93 104 27Bet Lib 15:18:23.6 -09:28:34 2.6 5.84 124 21Nu Lib 15:08:03.9 -16:21:17 5.2 2.02 125 PPM 229899 15:13:52.6 -15:48:36 7.6 0.63 124 PPM 229907 15:14:13.9 -15:13:21 9.7 0.22 124 471151 15:15:08.0 -15:15:46 16.7 124 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 471151, (2025/09/08 08:53UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 20.93 104 27Bet Lib 15:17:00.3 -09:22:59 2.6 5.84 124 21Nu Lib 15:06:37.6 -16:15:25 5.2 2.02 125 PPM 229899 15:12:26.4 -15:42:54 7.6 0.63 124 PPM 229907 15:12:48.0 -15:07:39 9.7 0.22 124 471151 15:13:42.0 -15:10:06 16.7 124 Positions are for J2000
Event circumstances last updated at 2024/06/18 02:53:35 UT
Marc W. Buie, Southwest Research Institute