Event between (307251) 02KW14 and star GA0620:18544006 with event index number of 2296586
Geocentric closest approach at 2025/07/19 14:18:52 UTC
J2000 position of star is 17:29:46.4 -27:22:24
Equinox of date position of star is 17:31:18.4 -27:23:27
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 145 degrees from the moon.
Moon is 32% illuminated.
Apparent brightness V=21.9
Object is 43.5 AU from the Sun
and 42.6 AU from the Earth.
Apparent velocity is 19.9
km/sec on the sky relative to the star, or,
2.3 arcsec/hr.
The 1-sigma error in the time of the event is 834 seconds.
The 1-sigma cross-track error in the shadow position is
5604 km.
The object has an absolute magnitude Hv=5.5
Diameter=457.1 km assuming a 5% albedo -- 24.0 sec chord
Diameter=186.6 km assuming a 30% albedo -- 9.8 sec chord
Dynamical classification is SCATEXTD
Star training set for 307251, (2025/07/19 14:19UT) Object RA Dec mag sep mel Antares 16:30:58.7 -26:29:11 0.9 13.48 158 34Ups Sco 17:32:30.2 -37:18:49 2.7 9.92 143 PPM 266967 17:33:19.7 -26:17:13 6.3 1.19 144 PPM 266861 17:27:42.1 -27:37:13 7.9 0.85 146 PPM 266946 17:32:09.6 -27:13:16 8.7 0.24 145 307251 17:31:22.5 -27:23:30 16.8 144 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 307251, (2025/07/19 14:19UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 13.48 158 34Ups Sco 17:30:45.8 -37:17:46 2.7 9.92 143 PPM 266967 17:31:44.4 -26:16:11 6.3 1.19 144 PPM 266861 17:26:05.9 -27:36:00 7.9 0.85 146 PPM 266946 17:30:33.6 -27:12:12 8.7 0.24 145 307251 17:29:46.4 -27:22:24 16.8 145 Positions are for J2000
Event circumstances last updated at 2024/06/18 02:50:55 UT
Marc W. Buie, Southwest Research Institute