Event between (585913) 20QQ7 and star GA0920:18176438 with event index number of 2530949
Geocentric closest approach at 2021/11/23 11:42:35 UTC
J2000 position of star is 23:51:16.9 +02:09:07
Equinox of date position of star is 23:52:24.2 +02:16:25
Stellar brightness G=16.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 107 degrees from the moon.
Moon is 86% illuminated.
TNO apparent brightness V=21.0
TNO is 14.1 AU from the Sun
and 13.6 AU from the Earth.
The TNO is moving 7.0
km/sec on the sky relative to the star, or,
2.5 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
538 km.
The TNO has an absolute magnitude Hv=9.3
Diameter=81.3 km assuming a 5% albedo -- 11.7 sec chord
Diameter=33.2 km assuming a 30% albedo -- 4.8 sec chord
Dynamical classification is CENTAURR
Star training set for 585913, (2021/11/23 11:41UT) Object RA Dec mag sep mel Fomalhaut 22:58:51.3 -29:30:21 1.2 34.26 130 Algenib 00:14:22.0 +15:18:19 2.8 14.11 96 25 Psc 23:54:12.1 +02:12:45 6.2 0.45 106 PPM 174486 23:52:14.1 +02:21:35 8.1 0.10 107 585913 23:52:24.2 +02:16:26 16.1 106 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 585913, (2021/11/23 11:41UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 34.26 130 Algenib 00:13:14.2 +15:11:01 2.8 14.11 96 25 Psc 23:53:04.8 +02:05:27 6.2 0.45 106 PPM 174486 23:51:06.8 +02:14:16 8.1 0.10 107 585913 23:51:16.9 +02:09:07 16.1 107 Positions are for J2000
Event circumstances last updated at 2021/11/15 00:43:05 UT
Marc W. Buie, Southwest Research Institute