Event between 13KY18 and star GA0660:18171195 with event index number of 2062440
Geocentric closest approach at 2021/06/29 18:48:51 UTC
J2000 position of star is 17:44:04.6 -23:40:17
Equinox of date position of star is 17:45:22.9 -23:40:46
Stellar brightness G=12.8,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 77 degrees from the moon.
Moon is 71% illuminated.
TNO apparent brightness V=21.4
TNO is 29.6 AU from the Sun
and 28.6 AU from the Earth.
The TNO is moving 23.3
km/sec on the sky relative to the star, or,
4.0 arcsec/hr.
The 1-sigma error in the time of the event is 336 seconds.
The 1-sigma cross-track error in the shadow position is
1623 km.
The TNO has an absolute magnitude Hv=6.7
Diameter=272.9 km assuming a 5% albedo -- 11.7 sec chord
Diameter=111.4 km assuming a 30% albedo -- 4.8 sec chord
Dynamical classification is 1:1
Star training set for 13KY18, (2021/06/29 18:49UT) Object RA Dec mag sep mel Antares 16:30:43.7 -26:28:40 0.9 17.12 94 35Eta Oph 17:11:36.7 -15:45:00 2.6 11.22 86 PPM 267309 17:49:03.6 -22:29:02 6.1 1.46 77 PPM 267163 17:43:38.6 -23:21:28 7.7 0.51 78 PPM 267209 17:45:36.2 -23:45:51 9.4 0.10 77 13KY18 17:45:23.3 -23:40:46 12.8 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 13KY18, (2021/06/29 18:49UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 17.12 94 35Eta Oph 17:10:22.7 -15:43:29 2.6 11.22 86 PPM 267309 17:47:45.6 -22:28:40 6.1 1.46 77 PPM 267163 17:42:20.2 -23:20:56 7.7 0.51 78 PPM 267209 17:44:17.5 -23:45:23 9.4 0.10 77 13KY18 17:44:04.6 -23:40:17 12.8 77 Positions are for J2000
Event circumstances last updated at 2021/05/19 01:05:55 UT
Marc W. Buie, Southwest Research Institute