Event between (523652) 11LZ28 and star GA1180:00326504 with event index number of 2241259
Geocentric closest approach at 2026/07/28 04:38:19 UTC
J2000 position of star is 02:18:33.6 +28:00:44
Equinox of date position of star is 02:19:56.8 +28:07:17
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 113 degrees from the moon.
Moon is 98% illuminated.
Apparent brightness V=21.8
Object is 28.3 AU from the Sun
and 28.4 AU from the Earth.
Apparent velocity is 12.4
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 136 seconds.
The 1-sigma cross-track error in the shadow position is
1770 km.
The object has an absolute magnitude Hv=7.1
Diameter=222.9 km assuming a 5% albedo -- 18.3 sec chord
Diameter=91.0 km assuming a 30% albedo -- 7.5 sec chord
Dynamical classification is CENTAURR
Star training set for 523652, (2026/07/28 04:40UT) Object RA Dec mag sep mel Aldebaran 04:37:26.9 +16:33:39 0.8 33.66 139 Hamal 02:08:40.6 +23:35:13 2.0 5.22 109 10 Tri 02:20:29.9 +28:45:50 5.3 0.64 113 PPM 091581 02:22:22.6 +28:51:24 8.0 0.88 113 PPM 091543 02:19:57.6 +28:04:18 9.9 0.07 112 523652 02:20:06.2 +28:08:01 16.6 113 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 523652, (2026/07/28 04:40UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 33.66 139 Hamal 02:07:10.7 +23:27:41 2.0 5.22 109 10 Tri 02:18:57.1 +28:38:33 5.3 0.64 113 PPM 091581 02:20:49.6 +28:44:10 8.0 0.88 113 PPM 091543 02:18:25.2 +27:57:01 9.9 0.07 112 523652 02:18:33.6 +28:00:44 16.6 113 Positions are for J2000
Event circumstances last updated at 2023/11/20 04:25:46 UT
Marc W. Buie, Southwest Research Institute