Event between (518151) 16FH13 and star GA1420:04656261 with event index number of 2426801
Geocentric closest approach at 2026/06/20 03:28:15 UTC
J2000 position of star is 13:18:21.2 +53:51:29
Equinox of date position of star is 13:19:21.0 +53:43:50
Stellar brightness G=15.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 56 degrees from the moon.
Moon is 32% illuminated.
Apparent brightness V=23.4
Object is 19.1 AU from the Sun
and 19.2 AU from the Earth.
Apparent velocity is 18.3
km/sec on the sky relative to the star, or,
4.7 arcsec/hr.
The 1-sigma error in the time of the event is 218 seconds.
The 1-sigma cross-track error in the shadow position is
2827 km.
The object has an absolute magnitude Hv=10.3
Diameter=53.5 km assuming a 5% albedo -- 2.9 sec chord
Diameter=21.8 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is CENTAURR
Star training set for 518151, (2026/06/20 03:33UT) Object RA Dec mag sep mel Arcturus 14:16:52.5 +19:02:54 0.0 36.39 54 Mizar 13:24:59.1 +54:47:16 2.3 1.34 57 80 UMa 13:26:16.8 +54:51:03 4.2 1.51 57 PPM 033946 13:16:45.8 +54:15:50 8.5 0.67 56 PPM 033987 13:21:53.7 +53:43:17 9.5 0.36 56 PPM 033972 13:19:33.5 +53:38:20 10.1 0.08 56 518151 13:19:26.3 +53:43:10 15.9 56 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 518151, (2026/06/20 03:33UT) Object RA Dec mag sep mel Arcturus 14:15:38.0 +19:10:14 0.0 36.39 54 Mizar 13:23:55.8 +54:55:31 2.3 1.34 57 80 UMa 13:25:13.8 +54:59:17 4.2 1.51 57 PPM 033946 13:15:40.5 +54:24:11 8.5 0.67 56 PPM 033987 13:20:49.1 +53:51:35 9.5 0.36 56 PPM 033972 13:18:28.4 +53:46:40 10.1 0.08 56 518151 13:18:21.2 +53:51:29 15.9 56 Positions are for J2000
Event circumstances last updated at 2024/04/21 03:18:42 UT
Marc W. Buie, Southwest Research Institute