Event between (385527) 04OK14 and star GA0800:21750233 with event index number of 1306507
Geocentric closest approach at 2023/07/20 04:38:27 UTC
J2000 position of star is 22:28:35.0 -09:53:49
Equinox of date position of star is 22:29:44.0 -09:47:06
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 168 degrees from the moon.
Moon is 5% illuminated.
TNO apparent brightness V=22.8
TNO is 33.6 AU from the Sun
and 32.8 AU from the Earth.
The TNO is moving 17.4
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 363 seconds.
The 1-sigma cross-track error in the shadow position is
3258 km.
The TNO has an absolute magnitude Hv=7.5
Diameter=190.6 km assuming a 5% albedo -- 11.0 sec chord
Diameter=77.8 km assuming a 30% albedo -- 4.5 sec chord
Dynamical classification is 7:4EEE
Star training set for 385527, (2023/07/20 04:29UT) Object RA Dec mag sep mel Fomalhaut 22:58:56.8 -29:29:49 1.2 20.86 161 46Rho Aqr 22:21:26.1 -07:42:07 5.1 2.93 168 PPM 206410 22:30:19.5 -09:37:14 8.0 0.20 168 PPM 206398 22:29:33.6 -09:46:40 9.7 0.07 168 385527 22:29:49.5 -09:46:34 15.8 167 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 385527, (2023/07/20 04:29UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 20.86 161 46Rho Aqr 22:20:11.9 -07:49:15 5.1 2.93 168 PPM 206410 22:29:05.0 -09:44:30 8.0 0.20 168 PPM 206398 22:28:19.1 -09:53:55 9.7 0.07 168 385527 22:28:35.0 -09:53:49 15.8 168 Positions are for J2000
Event circumstances last updated at 2021/10/25 23:33:47 UT
Marc W. Buie, Southwest Research Institute