Event between 05UN524 and star GA1260:03296754 with event index number of 1957771
Geocentric closest approach at 2023/04/08 15:42:56 UTC
J2000 position of star is 08:25:23.9 +37:39:45
Equinox of date position of star is 08:26:50.5 +37:35:20
Stellar brightness G=14.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 108 degrees from the moon.
Moon is 93% illuminated.
TNO apparent brightness V=21.9
TNO is 19.1 AU from the Sun
and 18.8 AU from the Earth.
The TNO is moving 8.6
km/sec on the sky relative to the star, or,
2.3 arcsec/hr.
The 1-sigma error in the time of the event is 82 seconds.
The 1-sigma cross-track error in the shadow position is
1032 km.
The TNO has an absolute magnitude Hv=8.8
Diameter=102.8 km assuming a 5% albedo -- 12.2 sec chord
Diameter=42.0 km assuming a 30% albedo -- 5.0 sec chord
Dynamical classification is CENTAURR
Star training set for 05UN524, (2023/04/08 15:43UT) Object RA Dec mag sep mel Pollux 07:46:44.3 +27:58:05 1.1 12.78 115 PPM 073770 08:32:50.1 +37:11:05 6.0 1.24 107 PPM 073689 08:26:54.2 +37:18:39 8.1 0.27 108 PPM 073703 08:27:51.0 +37:28:03 8.8 0.22 108 05UN524 08:26:54.7 +37:35:07 14.9 108 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 05UN524, (2023/04/08 15:43UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 12.78 115 PPM 073770 08:31:20.0 +37:15:52 6.0 1.24 107 PPM 073689 08:25:23.6 +37:23:17 8.1 0.27 108 PPM 073703 08:26:20.4 +37:32:42 8.8 0.22 108 05UN524 08:25:23.9 +37:39:45 14.9 108 Positions are for J2000
Event circumstances last updated at 2022/03/12 01:56:51 UT
Marc W. Buie, Southwest Research Institute