Event between (143707) 03UY117 and star GA1120:00490265 with event index number of 2468480
Geocentric closest approach at 2023/07/26 06:31:46 UTC
J2000 position of star is 03:51:06.5 +23:29:32
Equinox of date position of star is 03:52:28.3 +23:33:36
Stellar brightness G=16.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 156 degrees from the moon.
Moon is 54% illuminated.
TNO apparent brightness V=21.6
TNO is 35.0 AU from the Sun
and 35.5 AU from the Earth.
The TNO is moving 19.3
km/sec on the sky relative to the star, or,
2.7 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
1304 km.
The TNO has an absolute magnitude Hv=6.0
Diameter=378.5 km assuming a 5% albedo -- 20.1 sec chord
Diameter=154.5 km assuming a 30% albedo -- 8.2 sec chord
Dynamical classification is 5:2EEE
Star training set for 143707, (2023/07/26 06:31UT) Object RA Dec mag sep mel Aldebaran 04:37:16.5 +16:33:17 0.8 12.62 147 44Zet Per 03:55:37.2 +31:57:06 2.8 8.42 152 PPM 092951 03:51:07.7 +23:46:55 6.1 0.39 157 PPM 092979 03:52:26.8 +23:29:52 9.9 0.07 156 143707 03:52:30.6 +23:33:43 16.4 156 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 143707, (2023/07/26 06:31UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 12.62 147 44Zet Per 03:54:07.9 +31:53:01 2.8 8.42 152 PPM 092951 03:49:43.5 +23:42:42 6.1 0.39 157 PPM 092979 03:51:02.7 +23:25:42 9.9 0.07 156 143707 03:51:06.5 +23:29:32 16.4 156 Positions are for J2000
Event circumstances last updated at 2022/12/02 03:10:18 UT
Marc W. Buie, Southwest Research Institute