Event between (523800) 17KZ31 and star GA1220:03213257 with event index number of 2432231
Geocentric closest approach at 2028/10/30 20:14:59 UTC
J2000 position of star is 07:46:11.1 +32:12:39
Equinox of date position of star is 07:47:43.8 +32:09:01
Stellar brightness G=14.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 102 degrees from the moon.
Moon is 94% illuminated.
Apparent brightness V=23.8
Object is 21.2 AU from the Sun
and 20.9 AU from the Earth.
Apparent velocity is 16.0
km/sec on the sky relative to the star, or,
3.8 arcsec/hr.
The 1-sigma error in the time of the event is 158 seconds.
The 1-sigma cross-track error in the shadow position is
2149 km.
The object has an absolute magnitude Hv=10.3
Diameter=52.2 km assuming a 5% albedo -- 3.2 sec chord
Diameter=21.3 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is CENTAURR
Star training set for 523800, (2028/10/30 20:15UT) Object RA Dec mag sep mel Pollux 07:47:04.9 +27:57:15 1.1 4.19 103 80Pi Gem 07:49:21.5 +33:20:33 5.1 1.24 102 PPM 073117 07:49:57.7 +32:46:59 8.2 0.76 102 PPM 073079 07:46:35.3 +32:16:29 8.6 0.33 101 523800 07:48:01.4 +32:08:19 14.7 102 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, (2028/10/30 20:15UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 4.19 103 80Pi Gem 07:47:30.3 +33:24:56 5.1 1.24 102 PPM 073117 07:48:07.0 +32:51:23 8.2 0.76 102 PPM 073079 07:44:44.9 +32:20:46 8.6 0.33 101 523800 07:46:11.1 +32:12:39 14.7 102 Positions are for J2000
Event circumstances last updated at 2024/03/19 04:09:33 UT
Marc W. Buie, Southwest Research Institute