Event between (307251) 02KW14 and star GA0620:14542539 with event index number of 2295743
Geocentric closest approach at 2022/07/27 16:35:19 UTC
J2000 position of star is 17:12:01.7 -26:28:42
Equinox of date position of star is 17:13:24.4 -26:30:14
Stellar brightness G=15.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 146 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=22.0
TNO is 42.9 AU from the Sun
and 42.2 AU from the Earth.
The TNO is moving 16.0
km/sec on the sky relative to the star, or,
1.9 arcsec/hr.
The 1-sigma error in the time of the event is 725 seconds.
The 1-sigma cross-track error in the shadow position is
3755 km.
The TNO has an absolute magnitude Hv=5.6
Diameter=457.1 km assuming a 5% albedo -- 28.6 sec chord
Diameter=186.6 km assuming a 30% albedo -- 11.7 sec chord
Dynamical classification is SCATEXTD
Star training set for 307251, (2022/07/27 16:35UT) Object RA Dec mag sep mel Antares 16:30:47.7 -26:28:48 0.9 9.54 137 23Tau Sco 16:37:17.5 -28:15:39 2.8 8.21 139 PPM 266626 17:17:36.8 -26:34:35 6.5 0.94 147 PPM 266531 17:13:01.0 -26:43:43 7.7 0.24 146 PPM 266533 17:13:11.6 -26:27:55 9.1 0.07 146 307251 17:13:25.8 -26:30:15 15.4 147 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 307251, (2022/07/27 16:35UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 9.54 137 23Tau Sco 16:35:52.9 -28:12:58 2.8 8.21 139 PPM 266626 17:16:12.6 -26:33:11 6.5 0.94 147 PPM 266531 17:11:36.8 -26:42:10 7.7 0.24 146 PPM 266533 17:11:47.5 -26:26:21 9.1 0.07 146 307251 17:12:01.7 -26:28:42 15.4 146 Positions are for J2000
Event circumstances last updated at 2022/03/15 01:08:10 UT
Marc W. Buie, Southwest Research Institute