Event between (469506) 03FF128 and star GA0660:08489625 with event index number of 1325883
Geocentric closest approach at 2023/08/06 20:48:11 UTC
J2000 position of star is 16:56:17.8 -22:07:47
Equinox of date position of star is 16:57:39.7 -22:09:51
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 129 degrees from the moon.
Moon is 67% illuminated.
TNO apparent brightness V=22.0
TNO is 31.0 AU from the Sun
and 30.5 AU from the Earth.
The TNO is moving 9.2
km/sec on the sky relative to the star, or,
1.5 arcsec/hr.
The 1-sigma error in the time of the event is 379 seconds.
The 1-sigma cross-track error in the shadow position is
1212 km.
The TNO has an absolute magnitude Hv=6.9
Diameter=254.7 km assuming a 5% albedo -- 27.4 sec chord
Diameter=104.0 km assuming a 30% albedo -- 11.2 sec chord
Dynamical classification is 3:2E
Star training set for 469506, (2023/08/06 20:48UT) Object RA Dec mag sep mel Antares 16:30:51.5 -26:28:56 0.9 7.48 135 35Eta Oph 17:11:44.0 -15:45:09 2.6 7.22 126 PPM 266088 16:54:49.0 -20:27:11 5.7 1.84 130 PPM 266170 16:58:10.0 -21:49:55 8.4 0.35 129 PPM 266156 16:57:32.8 -22:00:41 9.4 0.16 129 469506 16:57:42.7 -22:09:56 16.8 129 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 469506, (2023/08/06 20:48UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 7.48 135 35Eta Oph 17:10:22.7 -15:43:29 2.6 7.22 126 PPM 266088 16:53:25.2 -20:24:57 5.7 1.84 130 PPM 266170 16:56:45.3 -21:47:48 8.4 0.35 129 PPM 266156 16:56:07.9 -21:58:33 9.4 0.16 129 469506 16:56:17.8 -22:07:47 16.8 129 Positions are for J2000
Event circumstances last updated at 2022/10/05 04:25:38 UT
Marc W. Buie, Southwest Research Institute