Event between (612951) 05EB299 and star GA0740:05341292 with event index number of 2819804
Geocentric closest approach at 2025/03/20 23:08:26 UTC
J2000 position of star is 14:16:56.2 -14:14:46
Equinox of date position of star is 14:18:09.2 -14:20:56
Stellar brightness G=14.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 37 degrees from the moon.
Moon is 65% illuminated.
TNO apparent brightness V=23.0
TNO is 28.5 AU from the Sun
and 27.7 AU from the Earth.
The TNO is moving 17.3
km/sec on the sky relative to the star, or,
3.1 arcsec/hr.
The 1-sigma error in the time of the event is 190 seconds.
The 1-sigma cross-track error in the shadow position is
1838 km.
The TNO has an absolute magnitude Hv=8.4
Diameter=124.7 km assuming a 5% albedo -- 7.2 sec chord
Diameter=50.9 km assuming a 30% albedo -- 2.9 sec chord
Dynamical classification is CENTAURR
Star training set for 612951, (2025/03/20 23:08UT) Object RA Dec mag sep mel Spica 13:26:31.5 -11:17:32 1.0 12.99 50 PPM 228402 14:12:13.4 -16:25:12 4.2 2.53 37 PPM 228587 14:19:22.9 -14:49:18 8.5 0.53 36 PPM 228550 14:17:36.9 -14:23:46 9.3 0.17 37 612951 14:18:18.6 -14:21:43 14.5 37 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 612951, (2025/03/20 23:08UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 12.99 50 PPM 228402 14:10:50.5 -16:18:08 4.2 2.53 37 PPM 228587 14:18:00.3 -14:42:23 8.5 0.53 36 PPM 228550 14:16:14.6 -14:16:49 9.3 0.17 37 612951 14:16:56.2 -14:14:46 14.5 37 Positions are for J2000
Event circumstances last updated at 2022/05/04 00:16:49 UT
Marc W. Buie, Southwest Research Institute