Event between 09KN30 and star GA0660:34738457 with event index number of 2073510
Geocentric closest approach at 2022/05/28 01:12:03 UTC
J2000 position of star is 18:45:39.4 -23:27:27
Equinox of date position of star is 18:47:00.2 -23:25:58
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 119 degrees from the moon.
Moon is 6% illuminated.
TNO apparent brightness V=23.3
TNO is 34.7 AU from the Sun
and 33.8 AU from the Earth.
The TNO is moving 18.3
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 603 seconds.
The 1-sigma cross-track error in the shadow position is
2088 km.
The TNO has an absolute magnitude Hv=7.8
Diameter=164.4 km assuming a 5% albedo -- 9.0 sec chord
Diameter=67.1 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is 7:2EEEEE
Star training set for 09KN30, (2022/05/28 01:12UT) Object RA Dec mag sep mel Antares 16:30:47.1 -26:28:47 0.9 30.94 149 Nunki 18:56:39.2 -26:16:01 2.0 3.58 117 26 Sgr 18:43:13.6 -23:48:38 6.2 0.95 120 PPM 268791 18:44:19.9 -23:56:38 7.6 0.80 120 PPM 268865 18:47:17.3 -23:38:02 9.4 0.21 119 09KN30 18:47:01.0 -23:25:57 16.6 119 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 09KN30, (2022/05/28 01:12UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 30.94 149 Nunki 18:55:15.9 -26:17:49 2.0 3.58 117 26 Sgr 18:41:51.7 -23:50:01 6.2 0.95 120 PPM 268791 18:42:57.9 -23:58:03 7.6 0.80 120 PPM 268865 18:45:55.6 -23:39:33 9.4 0.21 119 09KN30 18:45:39.4 -23:27:27 16.6 119 Positions are for J2000
Event circumstances last updated at 2022/03/14 01:02:37 UT
Marc W. Buie, Southwest Research Institute