Event between 01KO77 and star GA0740:13435833 with event index number of 275436
Geocentric closest approach at 2020/07/18 03:54:36 UTC
J2000 position of star is 17:54:34.8 -14:32:37
Equinox of date position of star is 17:55:43.8 -14:32:45
Stellar brightness G=14.5,
use SENSEUP=128
Star is 171 degrees from the moon.
Moon is 7% illuminated.
TNO apparent brightness V=25.8
TNO is 37.6 AU from the Sun
and 36.7 AU from the Earth.
The TNO is moving 21.1
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 506 seconds.
The 1-sigma cross-track error in the shadow position is
3783 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=184.5 km assuming a 5% albedo -- 2.9 sec chord
Diameter=75.3 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is SCATEXTD
Star training set for 01KO77, (2020/07/18 03:55UT) Object RA Dec mag sep mel Antares 16:30:40.2 -26:28:33 0.9 23.16 165 35Eta Oph 17:11:33.5 -15:44:56 2.6 10.73 171 PPM 233766 17:57:30.0 -15:48:52 6.1 1.34 171 PPM 233767 17:57:30.0 -15:11:03 8.4 0.77 171 PPM 233741 17:56:25.4 -14:36:01 9.8 0.17 170 01KO77 17:55:45.1 -14:32:46 14.5 170 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 01KO77, (2020/07/18 03:55UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 23.16 165 35Eta Oph 17:10:22.7 -15:43:29 2.6 10.73 171 PPM 233766 17:56:19.0 -15:48:46 6.1 1.34 171 PPM 233767 17:56:19.4 -15:10:58 8.4 0.77 171 PPM 233741 17:55:15.1 -14:35:54 9.8 0.17 170 01KO77 17:54:34.8 -14:32:37 14.5 171 Positions are for J2000
Event circumstances last updated at 2020/03/06 22:00:53 UT
Marc W. Buie, Southwest Research Institute