Event between (531074) 12DX98 and star GA0720:05090672 with event index number of 2441896
Geocentric closest approach at 2025/05/03 16:59:10 UTC
J2000 position of star is 13:51:24.8 -17:03:27
Equinox of date position of star is 13:52:44.7 -17:10:40
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 89 degrees from the moon.
Moon is 41% illuminated.
Apparent brightness V=22.8
Object is 35.3 AU from the Sun
and 34.4 AU from the Earth.
Apparent velocity is 23.6
km/sec on the sky relative to the star, or,
3.4 arcsec/hr.
The 1-sigma error in the time of the event is 168 seconds.
The 1-sigma cross-track error in the shadow position is
2911 km.
The object has an absolute magnitude Hv=7.3
Diameter=206.1 km assuming a 5% albedo -- 8.7 sec chord
Diameter=84.1 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is 2:1E
Star training set for 531074, (2025/05/03 16:59UT) Object RA Dec mag sep mel Spica 13:26:31.9 -11:17:34 1.0 8.67 81 89 Vir 13:51:15.2 -18:15:34 5.0 1.14 89 PPM 227998 13:55:44.3 -17:18:14 6.7 0.71 90 PPM 227954 13:53:47.8 -17:02:55 9.9 0.27 89 531074 13:52:47.6 -17:10:56 16.6 90 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 531074, (2025/05/03 16:59UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 8.67 81 89 Vir 13:49:52.1 -18:08:04 5.0 1.14 89 PPM 227998 13:54:21.3 -17:10:49 6.7 0.71 90 PPM 227954 13:52:25.0 -16:55:28 9.9 0.27 89 531074 13:51:24.8 -17:03:27 16.6 89 Positions are for J2000
Event circumstances last updated at 2024/06/13 03:46:10 UT
Marc W. Buie, Southwest Research Institute