Event between (523800) 17KZ31 and star GA1180:03108596 with event index number of 2432124
Geocentric closest approach at 2026/04/07 13:00:35 UTC
J2000 position of star is 08:03:47.8 +28:28:09
Equinox of date position of star is 08:05:17.3 +28:23:58
Stellar brightness G=10.4,
use SENSEUP=4 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 142 degrees from the moon.
Moon is 74% illuminated.
Apparent brightness V=23.2
Object is 18.3 AU from the Sun
and 18.1 AU from the Earth.
Apparent velocity is 12.3
km/sec on the sky relative to the star, or,
3.4 arcsec/hr.
The 1-sigma error in the time of the event is 159 seconds.
The 1-sigma cross-track error in the shadow position is
1265 km.
The object has an absolute magnitude Hv=10.3
Diameter=52.2 km assuming a 5% albedo -- 4.2 sec chord
Diameter=21.3 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
Star training set for 523800, (2026/04/07 13:00UT) Object RA Dec mag sep mel Pollux 07:46:55.4 +27:57:38 1.1 4.10 146 PPM 098327 08:07:13.3 +27:27:13 6.1 1.02 141 PPM 098270 08:04:48.3 +27:51:24 8.4 0.55 142 PPM 098317 08:06:42.6 +28:22:46 9.9 0.29 141 PPM 098297 08:05:43.5 +28:14:34 10.5 0.17 141 523800 08:05:24.8 +28:23:36 10.4 141 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 523800, (2026/04/07 13:00UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 4.10 146 PPM 098327 08:05:37.0 +27:31:49 6.1 1.02 141 PPM 098270 08:03:11.6 +27:55:55 8.4 0.55 142 PPM 098317 08:05:05.7 +28:27:21 9.9 0.29 141 PPM 098297 08:04:06.6 +28:19:07 10.5 0.17 141 523800 08:03:47.8 +28:28:09 10.4 142 Positions are for J2000
Event circumstances last updated at 2024/03/19 03:47:49 UT
Marc W. Buie, Southwest Research Institute