Event between 01KO77 and star GA0740:14687058 with event index number of 1065563
Geocentric closest approach at 2021/10/19 11:10:45 UTC
J2000 position of star is 18:00:04.7 -14:11:36
Equinox of date position of star is 18:01:18.5 -14:11:34
Stellar brightness G=16.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 104 degrees from the moon.
Moon is 99% illuminated.
TNO apparent brightness V=23.5
TNO is 37.6 AU from the Sun
and 38.0 AU from the Earth.
The TNO is moving 18.6
km/sec on the sky relative to the star, or,
2.4 arcsec/hr.
The 1-sigma error in the time of the event is 660 seconds.
The 1-sigma cross-track error in the shadow position is
4349 km.
The TNO has an absolute magnitude Hv=7.6
Diameter=184.5 km assuming a 5% albedo -- 9.9 sec chord
Diameter=75.3 km assuming a 30% albedo -- 4.0 sec chord
Dynamical classification is SCATEXTD
Star training set for 01KO77, (2021/10/19 11:11UT) Object RA Dec mag sep mel Antares 16:30:44.9 -26:28:43 0.9 24.46 123 35Eta Oph 17:11:37.8 -15:45:01 2.6 12.10 115 PPM 233766 17:57:34.3 -15:48:52 6.1 1.86 104 PPM 233881 18:01:34.9 -14:12:27 7.8 0.07 103 01KO77 18:01:19.1 -14:11:34 16.5 103 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, (2021/10/19 11:11UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 24.46 123 35Eta Oph 17:10:22.7 -15:43:29 2.6 12.10 115 PPM 233766 17:56:19.0 -15:48:47 6.1 1.86 104 PPM 233881 18:00:20.5 -14:12:29 7.8 0.07 103 01KO77 18:00:04.7 -14:11:36 16.5 104 Positions are for J2000
Event circumstances last updated at 2021/08/25 04:10:30 UT
Marc W. Buie, Southwest Research Institute