Event between 13KY18 and star GA0660:20656416 with event index number of 2063247
Geocentric closest approach at 2022/07/29 22:20:22 UTC
J2000 position of star is 17:50:57.9 -23:59:35
Equinox of date position of star is 17:52:19.4 -23:59:51
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 128 degrees from the moon.
Moon is 2% illuminated.
TNO apparent brightness V=21.5
TNO is 29.5 AU from the Sun
and 28.7 AU from the Earth.
The TNO is moving 17.4
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 81 seconds.
The 1-sigma cross-track error in the shadow position is
1050 km.
The TNO has an absolute magnitude Hv=6.7
Diameter=271.7 km assuming a 5% albedo -- 15.6 sec chord
Diameter=110.9 km assuming a 30% albedo -- 6.4 sec chord
Dynamical classification is 1:1
Star training set for 13KY18, (2022/07/29 22:28UT) Object RA Dec mag sep mel Antares 16:30:47.7 -26:28:49 0.9 18.59 110 35Eta Oph 17:11:40.5 -15:45:05 2.6 12.62 117 PPM 267497 17:56:17.5 -24:53:22 6.4 1.27 129 PPM 267369 17:51:20.4 -24:12:45 7.2 0.31 128 PPM 267403 17:52:32.9 -23:58:01 9.7 0.06 128 13KY18 17:52:20.8 -23:59:51 15.8 128 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 13KY18, (2022/07/29 22:28UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 18.59 110 35Eta Oph 17:10:22.7 -15:43:29 2.6 12.62 117 PPM 267497 17:54:54.1 -24:53:13 6.4 1.27 129 PPM 267369 17:49:57.4 -24:12:26 7.2 0.31 128 PPM 267403 17:51:10.1 -23:57:45 9.7 0.06 128 13KY18 17:50:57.9 -23:59:35 15.8 128 Positions are for J2000
Event circumstances last updated at 2022/03/12 01:45:52 UT
Marc W. Buie, Southwest Research Institute