Event between (523653) 11OA60 and star GA0720:33134984 with event index number of 1135245
Geocentric closest approach at 2021/07/10 03:20:46 UTC
J2000 position of star is 20:41:01.6 -17:25:44
Equinox of date position of star is 20:42:13.1 -17:21:11
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 161 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=20.7
TNO is 36.0 AU from the Sun
and 35.0 AU from the Earth.
The TNO is moving 22.8
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 73 seconds.
The 1-sigma cross-track error in the shadow position is
1314 km.
The TNO has an absolute magnitude Hv=5.1
Diameter=570.2 km assuming a 5% albedo -- 25.1 sec chord
Diameter=232.8 km assuming a 30% albedo -- 10.2 sec chord
Dynamical classification is SCATEXTD
Star training set for 523653, (2021/07/10 03:21UT) Object RA Dec mag sep mel Fomalhaut 22:58:50.1 -29:30:28 1.2 33.45 133 38Zet Sgr 19:03:58.7 -29:50:51 2.7 25.66 173 15Ups Cap 20:41:16.3 -18:03:41 5.2 0.75 161 PPM 237784 20:42:32.2 -17:18:03 7.1 0.09 161 PPM 237774 20:42:10.1 -17:18:21 9.1 0.05 161 523653 20:42:14.6 -17:21:05 16.6 160 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, (2021/07/10 03:21UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 33.45 133 38Zet Sgr 19:02:36.7 -29:52:49 2.7 25.66 173 15Ups Cap 20:40:02.9 -18:08:20 5.2 0.75 161 PPM 237784 20:41:19.2 -17:22:43 7.1 0.09 161 PPM 237774 20:40:57.1 -17:23:00 9.1 0.05 161 523653 20:41:01.6 -17:25:44 16.6 161 Positions are for J2000
Event circumstances last updated at 2021/01/23 20:34:46 UT
Marc W. Buie, Southwest Research Institute