Event between (469442) 02GG166 and star GA0580:38095089 with event index number of 1476276
Geocentric closest approach at 2025/07/20 03:49:36 UTC
J2000 position of star is 18:28:26.7 -30:44:15
Equinox of date position of star is 18:30:01.2 -30:43:12
Stellar brightness G=16.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 140 degrees from the moon.
Moon is 26% illuminated.
Apparent brightness V=20.0
Object is 14.9 AU from the Sun
and 13.9 AU from the Earth.
Apparent velocity is 17.9
km/sec on the sky relative to the star, or,
6.4 arcsec/hr.
The 1-sigma error in the time of the event is 144 seconds.
The 1-sigma cross-track error in the shadow position is
532 km.
The object has an absolute magnitude Hv=8.2
Diameter=136.1 km assuming a 5% albedo -- 7.6 sec chord
Diameter=55.6 km assuming a 30% albedo -- 3.1 sec chord
Dynamical classification is CENTAURR
Star training set for 469442, (2025/07/20 03:49UT) Object RA Dec mag sep mel Antares 16:30:58.7 -26:29:11 0.9 26.41 166 Nunki 18:56:50.9 -26:15:45 2.0 7.37 134 18 Sgr 18:26:39.9 -30:44:28 5.3 0.74 141 PPM 297763 18:30:04.8 -31:06:53 7.8 0.40 140 PPM 297792 18:31:16.9 -30:47:20 9.2 0.27 140 469442 18:30:05.4 -30:43:10 16.2 140 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, (2025/07/20 03:49UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 26.41 166 Nunki 18:55:15.9 -26:17:49 2.0 7.37 134 18 Sgr 18:25:01.2 -30:45:26 5.3 0.74 141 PPM 297763 18:28:25.7 -31:07:58 7.8 0.40 140 PPM 297792 18:29:38.1 -30:48:28 9.2 0.27 140 469442 18:28:26.7 -30:44:15 16.2 140 Positions are for J2000
Event circumstances last updated at 2024/06/18 02:50:59 UT
Marc W. Buie, Southwest Research Institute