Event between (523653) 11OA60 and star GA0720:33202038 with event index number of 2625616
Geocentric closest approach at 2022/04/05 12:47:09 UTC
J2000 position of star is 20:50:02.3 -17:23:49
Equinox of date position of star is 20:51:15.9 -17:18:54
Stellar brightness G=16.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 115 degrees from the moon.
Moon is 17% illuminated.
TNO apparent brightness V=20.8
TNO is 36.0 AU from the Sun
and 36.4 AU from the Earth.
The TNO is moving 17.8
km/sec on the sky relative to the star, or,
2.4 arcsec/hr.
The 1-sigma error in the time of the event is 98 seconds.
The 1-sigma cross-track error in the shadow position is
1345 km.
The TNO has an absolute magnitude Hv=5.1
Diameter=580.8 km assuming a 5% albedo -- 32.4 sec chord
Diameter=237.1 km assuming a 30% albedo -- 13.2 sec chord
Dynamical classification is SCATEXTD
Star training set for 523653, (2022/04/05 12:47UT) Object RA Dec mag sep mel Fomalhaut 22:58:52.5 -29:30:14 1.2 31.57 91 38Zet Sgr 19:04:01.5 -29:50:47 2.7 27.49 141 PPM 237966 20:50:36.1 -17:57:08 6.2 0.66 115 PPM 237998 20:52:12.3 -17:12:25 8.3 0.24 114 PPM 237976 20:51:00.7 -17:30:31 9.9 0.21 115 523653 20:51:17.6 -17:18:47 16.3 114 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 523653, (2022/04/05 12:47UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 31.57 91 38Zet Sgr 19:02:36.7 -29:52:49 2.7 27.49 141 PPM 237966 20:49:20.6 -18:02:10 6.2 0.66 115 PPM 237998 20:50:57.1 -17:17:28 8.3 0.24 114 PPM 237976 20:49:45.3 -17:35:33 9.9 0.21 115 523653 20:50:02.3 -17:23:49 16.3 115 Positions are for J2000
Event circumstances last updated at 2021/10/11 01:47:54 UT
Marc W. Buie, Southwest Research Institute