Event between (120216) 04EW95 and star GA0460:12454311 with event index number of 2139876
Geocentric closest approach at 2025/04/06 08:16:24 UTC
J2000 position of star is 16:10:49.3 -42:10:33
Equinox of date position of star is 16:12:26.9 -42:14:08
Stellar brightness G=15.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 126 degrees from the moon.
Moon is 63% illuminated.
Apparent brightness V=21.1
Object is 27.4 AU from the Sun
and 26.8 AU from the Earth.
Apparent velocity is 16.0
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 147 seconds.
The 1-sigma cross-track error in the shadow position is
2143 km.
The object has an absolute magnitude Hv=6.6
Diameter=287.1 km assuming a 5% albedo -- 18.2 sec chord
Diameter=117.2 km assuming a 30% albedo -- 7.4 sec chord
Dynamical classification is 3:2E
Star training set for 120216, (2025/04/06 08:16UT) Object RA Dec mag sep mel Antares 16:30:57.6 -26:29:09 0.9 16.20 128 Eta Lup 16:01:48.3 -38:27:59 2.8 4.29 123 PPM 321468 16:13:01.6 -41:11:04 5.8 1.06 126 PPM 321480 16:14:01.9 -42:26:18 8.3 0.34 126 120216 16:12:34.2 -42:14:24 15.0 126 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 120216, (2025/04/06 08:16UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 16.20 128 Eta Lup 16:00:07.3 -38:23:48 2.8 4.29 123 PPM 321468 16:11:17.6 -41:07:14 5.8 1.06 126 PPM 321480 16:12:16.7 -42:22:31 8.3 0.34 126 120216 16:10:49.3 -42:10:33 15.0 126 Positions are for J2000
Event circumstances last updated at 2023/07/04 04:31:01 UT
Marc W. Buie, Southwest Research Institute