Event between (469442) 02GG166 and star GA0580:37922378 with event index number of 1476285
Geocentric closest approach at 2025/07/23 12:53:23 UTC
J2000 position of star is 18:27:47.4 -30:44:14
Equinox of date position of star is 18:29:21.9 -30:43:13
Stellar brightness G=15.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 171 degrees from the moon.
Moon is 2% illuminated.
Apparent brightness V=20.0
Object is 14.9 AU from the Sun
and 14.0 AU from the Earth.
Apparent velocity is 17.2
km/sec on the sky relative to the star, or,
6.1 arcsec/hr.
The 1-sigma error in the time of the event is 149 seconds.
The 1-sigma cross-track error in the shadow position is
531 km.
The object has an absolute magnitude Hv=8.2
Diameter=136.1 km assuming a 5% albedo -- 7.9 sec chord
Diameter=55.6 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is CENTAURR
Star training set for 469442, (2025/07/23 12:53UT) Object RA Dec mag sep mel Antares 16:30:58.7 -26:29:11 0.9 26.26 145 Nunki 18:56:50.9 -26:15:45 2.0 7.49 178 18 Sgr 18:26:40.0 -30:44:28 5.3 0.60 171 PPM 297763 18:30:04.8 -31:06:53 7.8 0.42 171 PPM 297713 18:28:04.5 -30:44:17 9.4 0.29 171 469442 18:29:26.1 -30:43:10 15.9 171 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 469442, (2025/07/23 12:53UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 26.26 145 Nunki 18:55:15.9 -26:17:49 2.0 7.49 178 18 Sgr 18:25:01.2 -30:45:26 5.3 0.60 171 PPM 297763 18:28:25.7 -31:07:58 7.8 0.42 171 PPM 297713 18:26:25.8 -30:45:18 9.4 0.29 171 469442 18:27:47.4 -30:44:14 15.9 171 Positions are for J2000
Event circumstances last updated at 2024/06/18 02:51:15 UT
Marc W. Buie, Southwest Research Institute