Event between (559180) 15BT518 and star GA0800:04656087 with event index number of 2654674
Geocentric closest approach at 2026/03/13 03:42:44 UTC
J2000 position of star is 15:01:17.4 -09:57:31
Equinox of date position of star is 15:02:36.7 -10:03:15
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 57 degrees from the moon.
Moon is 34% illuminated.
Apparent brightness V=22.3
Object is 42.6 AU from the Sun
and 42.0 AU from the Earth.
Apparent velocity is 13.1
km/sec on the sky relative to the star, or,
1.5 arcsec/hr.
The 1-sigma error in the time of the event is 212 seconds.
The 1-sigma cross-track error in the shadow position is
2691 km.
The object has an absolute magnitude Hv=5.9
Diameter=394.5 km assuming a 5% albedo -- 30.6 sec chord
Diameter=161.0 km assuming a 30% albedo -- 12.5 sec chord
Dynamical classification is CLASSICAL
Star training set for 559180, (2026/03/13 03:41UT) Object RA Dec mag sep mel Spica 13:26:34.6 -11:17:50 1.0 23.64 78 27Bet Lib 15:18:25.2 -09:28:40 2.6 3.92 54 18 Lib 15:00:18.9 -11:14:52 5.8 1.32 57 PPM 229680 15:04:16.8 -10:29:38 7.5 0.58 57 PPM 229636 15:02:32.9 -10:13:20 9.5 0.17 57 559180 15:02:42.3 -10:03:39 15.8 57 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 559180, (2026/03/13 03:41UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 23.64 78 27Bet Lib 15:17:00.3 -09:22:59 2.6 3.92 54 18 Lib 14:58:53.4 -11:08:40 5.8 1.32 57 PPM 229680 15:02:51.6 -10:23:33 7.5 0.58 57 PPM 229636 15:01:07.9 -10:07:12 9.5 0.17 57 559180 15:01:17.4 -09:57:31 15.8 57 Positions are for J2000
Event circumstances last updated at 2024/06/18 21:25:46 UT
Marc W. Buie, Southwest Research Institute