Event between (585912) 20QK3 and star GA0860:16979238 with event index number of 2525585
Geocentric closest approach at 2022/05/30 14:38:07 UTC
J2000 position of star is 23:35:05.4 -03:20:23
Equinox of date position of star is 23:36:12.8 -03:13:07
Stellar brightness G=16.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 78 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=20.8
TNO is 13.6 AU from the Sun
and 13.8 AU from the Earth.
The TNO is moving 17.3
km/sec on the sky relative to the star, or,
6.2 arcsec/hr.
The 1-sigma error in the time of the event is 40 seconds.
The 1-sigma cross-track error in the shadow position is
502 km.
The TNO has an absolute magnitude Hv=9.1
Diameter=92.0 km assuming a 5% albedo -- 5.3 sec chord
Diameter=37.6 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
Star training set for 585912, (2022/05/30 14:38UT) Object RA Dec mag sep mel Fomalhaut 22:58:53.0 -29:30:11 1.2 27.74 97 Markab 23:05:52.7 +15:19:34 2.5 20.01 77 PPM 207611 23:30:41.6 -04:24:38 6.3 1.83 79 PPM 207720 23:36:23.9 -03:43:46 7.6 0.52 78 PPM 207724 23:36:36.6 -03:18:59 9.4 0.14 78 585912 23:36:14.5 -03:12:57 16.3 77 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 585912, (2022/05/30 14:38UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 27.74 97 Markab 23:04:45.8 +15:12:18 2.5 20.01 77 PPM 207611 23:29:32.4 -04:32:03 6.3 1.83 79 PPM 207720 23:35:14.7 -03:51:13 7.6 0.52 78 PPM 207724 23:35:27.5 -03:26:26 9.4 0.14 78 585912 23:35:05.4 -03:20:23 16.3 78 Positions are for J2000
Event circumstances last updated at 2021/11/15 00:47:21 UT
Marc W. Buie, Southwest Research Institute