Event between (555426) 13XD26 and star GA0760:04623961 with event index number of 2386804
Geocentric closest approach at 2025/03/06 15:52:46 UTC
J2000 position of star is 12:17:43.1 -12:30:11
Equinox of date position of star is 12:18:50.8 -12:37:28
Stellar brightness G=12.0,
use SENSEUP=16 with the MallinCam and and exposure
time of 250 milli-seconds with the QHY174 camera.
Star is 114 degrees from the moon.
Moon is 50% illuminated.
TNO apparent brightness V=22.8
TNO is 36.1 AU from the Sun
and 35.2 AU from the Earth.
The TNO is moving 23.3
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 149 seconds.
The 1-sigma cross-track error in the shadow position is
4413 km.
The TNO has an absolute magnitude Hv=7.2
Diameter=220.8 km assuming a 5% albedo -- 9.5 sec chord
Diameter=90.1 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is SCATEXTD
Star training set for 555426, (2025/03/06 15:53UT) Object RA Dec mag sep mel Spica 13:26:31.4 -11:17:31 1.0 16.56 128 4Gam Crv 12:17:06.3 -17:40:54 2.6 5.06 115 PPM 225705 12:22:13.9 -13:42:19 5.1 1.32 115 PPM 225600 12:17:32.0 -12:09:38 8.5 0.60 113 PPM 225630 12:18:53.6 -12:34:17 9.4 0.08 114 555426 12:19:01.1 -12:38:34 12.0 114 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 555426, (2025/03/06 15:53UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 16.56 128 4Gam Crv 12:15:48.1 -17:32:30 2.6 5.06 115 PPM 225705 12:20:55.7 -13:33:56 5.1 1.32 115 PPM 225600 12:16:14.1 -12:01:15 8.5 0.60 113 PPM 225630 12:17:35.6 -12:25:54 9.4 0.08 114 555426 12:17:43.1 -12:30:11 12.0 114 Positions are for J2000
Event circumstances last updated at 2021/11/07 01:34:59 UT
Marc W. Buie, Southwest Research Institute