Event between (601690) 13KZ18 and star GA1320:00226818 with event index number of 2733132
Geocentric closest approach at 2025/10/06 18:36:26 UTC
J2000 position of star is 00:41:06.1 +43:57:08
Equinox of date position of star is 00:42:24.4 +44:04:55
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 39 degrees from the moon.
Moon is 100% illuminated.
Apparent brightness V=22.2
Object is 21.0 AU from the Sun
and 20.2 AU from the Earth.
Apparent velocity is 22.2
km/sec on the sky relative to the star, or,
5.5 arcsec/hr.
The 1-sigma error in the time of the event is 74 seconds.
The 1-sigma cross-track error in the shadow position is
1449 km.
The object has an absolute magnitude Hv=8.9
Diameter=100.5 km assuming a 5% albedo -- 4.6 sec chord
Diameter=41.0 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURR
Star training set for 601690, (2025/10/06 18:38UT) Object RA Dec mag sep mel Deneb 20:42:18.7 +45:22:24 1.3 41.66 63 57Gam1And 02:05:29.5 +42:27:08 2.3 15.15 43 PPM 043044 00:33:50.8 +43:38:12 6.4 1.63 38 PPM 043219 00:43:47.3 +44:04:42 8.1 0.23 39 601690 00:42:31.3 +44:05:36 16.6 39 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 601690, (2025/10/06 18:38UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 41.66 63 57Gam1And 02:03:54.1 +42:19:46 2.3 15.15 43 PPM 043044 00:32:26.9 +43:29:41 6.4 1.63 38 PPM 043219 00:42:21.8 +43:56:15 8.1 0.23 39 601690 00:41:06.1 +43:57:08 16.6 39 Positions are for J2000
Event circumstances last updated at 2023/09/03 03:29:29 UT
Marc W. Buie, Southwest Research Institute