Event between (559177) 15BF518 and star GA0760:04804715 with event index number of 2642706
Geocentric closest approach at 2026/08/06 08:22:34 UTC
J2000 position of star is 13:28:10.1 -13:19:02
Equinox of date position of star is 13:29:27.3 -13:26:30
Stellar brightness G=16.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 158 degrees from the moon.
Moon is 47% illuminated.
Apparent brightness V=22.7
Object is 17.5 AU from the Sun
and 17.8 AU from the Earth.
Apparent velocity is 17.7
km/sec on the sky relative to the star, or,
4.9 arcsec/hr.
The 1-sigma error in the time of the event is 109 seconds.
The 1-sigma cross-track error in the shadow position is
823 km.
The object has an absolute magnitude Hv=9.9
Diameter=62.5 km assuming a 5% albedo -- 3.5 sec chord
Diameter=25.5 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CENTAURR
Star training set for 559177, (2026/08/06 08:23UT) Object RA Dec mag sep mel Spica 13:26:35.9 -11:17:57 1.0 2.27 157 68 Vir 13:28:07.7 -12:50:43 5.3 0.70 158 PPM 227310 13:28:40.8 -13:26:52 8.0 0.22 158 PPM 227321 13:29:05.8 -13:26:51 9.1 0.12 158 559177 13:29:35.1 -13:27:15 16.0 159 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 559177, (2026/08/06 08:23UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 2.27 157 68 Vir 13:26:43.0 -12:42:28 5.3 0.70 158 PPM 227310 13:27:15.8 -13:18:37 8.0 0.22 158 PPM 227321 13:27:40.8 -13:18:37 9.1 0.12 158 559177 13:28:10.1 -13:19:02 16.0 158 Positions are for J2000
Event circumstances last updated at 2024/03/05 04:33:51 UT
Marc W. Buie, Southwest Research Institute