Event between (120216) 04EW95 and star GA0460:12538327 with event index number of 2140306
Geocentric closest approach at 2026/09/25 21:03:21 UTC
J2000 position of star is 16:11:48.3 -42:57:39
Equinox of date position of star is 16:13:26.7 -43:01:12
Stellar brightness G=15.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 103 degrees from the moon.
Moon is 99% illuminated.
Apparent brightness V=21.2
Object is 27.6 AU from the Sun
and 27.9 AU from the Earth.
Apparent velocity is 19.8
km/sec on the sky relative to the star, or,
3.5 arcsec/hr.
The 1-sigma error in the time of the event is 127 seconds.
The 1-sigma cross-track error in the shadow position is
1959 km.
The object has an absolute magnitude Hv=6.6
Diameter=287.1 km assuming a 5% albedo -- 14.7 sec chord
Diameter=117.2 km assuming a 30% albedo -- 6.0 sec chord
Dynamical classification is 3:2E
Star training set for 120216, (2026/09/25 21:03UT) Object RA Dec mag sep mel Antares 16:31:03.1 -26:29:20 0.9 16.91 103 Eta Lup 16:01:54.1 -38:28:14 2.8 5.07 107 PPM 321529 16:17:16.0 -42:57:52 6.2 0.66 103 PPM 321480 16:14:08.1 -42:26:32 8.3 0.59 103 PPM 321489 16:14:47.1 -42:51:02 9.1 0.27 103 PPM 321476 16:13:39.0 -42:53:04 10.4 0.14 103 120216 16:13:40.2 -43:01:41 15.3 103 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, (2026/09/25 21:03UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 16.91 103 Eta Lup 16:00:07.3 -38:23:48 2.8 5.07 107 PPM 321529 16:15:23.9 -42:53:58 6.2 0.66 103 PPM 321480 16:12:16.7 -42:22:31 8.3 0.59 103 PPM 321489 16:12:55.3 -42:47:03 9.1 0.27 103 PPM 321476 16:11:47.3 -42:49:02 10.4 0.14 103 120216 16:11:48.3 -42:57:39 15.3 103 Positions are for J2000
Event circumstances last updated at 2023/07/05 03:10:20 UT
Marc W. Buie, Southwest Research Institute