Event between (525462) 05EO304 and star GA0780:04545657 with event index number of 1593950
Geocentric closest approach at 2025/01/29 06:31:07 UTC
J2000 position of star is 14:24:31.7 -11:17:17
Equinox of date position of star is 14:25:43.7 -11:23:16
Stellar brightness G=13.1,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 89 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=22.7
TNO is 42.8 AU from the Sun
and 42.8 AU from the Earth.
The TNO is moving 4.2
km/sec on the sky relative to the star, or,
0.5 arcsec/hr.
The 1-sigma error in the time of the event is 784 seconds.
The 1-sigma cross-track error in the shadow position is
3315 km.
The TNO has an absolute magnitude Hv=6.2
Diameter=345.2 km assuming a 5% albedo -- 81.9 sec chord
Diameter=140.9 km assuming a 30% albedo -- 33.4 sec chord
Dynamical classification is CLASSICAL
Star training set for 525462, (2025/01/29 06:31UT) Object RA Dec mag sep mel Spica 13:26:31.1 -11:17:29 1.0 14.55 102 27Bet Lib 15:18:21.6 -09:28:26 2.6 13.04 78 2 Lib 14:24:46.8 -11:49:38 6.2 0.50 89 PPM 228758 14:26:01.9 -11:46:56 6.9 0.38 89 PPM 228751 14:25:55.7 -11:12:34 9.2 0.19 89 525462 14:25:52.8 -11:24:02 13.1 89 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 525462, (2025/01/29 06:31UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 14.55 102 27Bet Lib 15:17:00.3 -09:22:59 2.6 13.04 78 2 Lib 14:23:25.6 -11:42:52 6.2 0.50 89 PPM 228758 14:24:40.7 -11:40:11 6.9 0.38 89 PPM 228751 14:24:34.7 -11:05:49 9.2 0.19 89 525462 14:24:31.7 -11:17:17 13.1 89 Positions are for J2000
Event circumstances last updated at 2022/04/04 23:14:11 UT
Marc W. Buie, Southwest Research Institute