Event between (471318) 11JF31 and star GA0720:05985740 with event index number of 2654134
Geocentric closest approach at 2027/06/07 17:25:19 UTC
J2000 position of star is 16:14:55.2 -16:43:38
Equinox of date position of star is 16:16:19.3 -16:47:14
Stellar brightness G=15.4,
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 12% illuminated.
Apparent brightness V=21.8
Object is 43.4 AU from the Sun
and 42.4 AU from the Earth.
Apparent velocity is 25.0
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 94 seconds.
The 1-sigma cross-track error in the shadow position is
1652 km.
The object has an absolute magnitude Hv=5.4
Diameter=496.6 km assuming a 5% albedo -- 20.4 sec chord
Diameter=202.7 km assuming a 30% albedo -- 8.3 sec chord
Dynamical classification is SCATEXTD
Star training set for 471318, (2027/06/07 17:28UT) Object RA Dec mag sep mel Antares 16:31:05.6 -26:29:25 0.9 10.27 133 8Bet1Sco 16:07:02.2 -19:52:42 2.6 3.81 126 PPM 231413 16:16:14.5 -18:36:13 6.1 1.81 128 PPM 231403 16:15:50.4 -16:36:30 8.3 0.24 127 PPM 231415 16:16:14.6 -16:47:51 9.5 0.06 127 471318 16:16:29.4 -16:47:39 15.4 128 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 471318, (2027/06/07 17:28UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 10.27 133 8Bet1Sco 16:05:26.2 -19:48:20 2.6 3.81 126 PPM 231413 16:14:39.1 -18:32:11 6.1 1.81 128 PPM 231403 16:14:16.3 -16:32:27 8.3 0.24 127 PPM 231415 16:14:40.4 -16:43:48 9.5 0.06 127 471318 16:14:55.2 -16:43:38 15.4 127 Positions are for J2000
Event circumstances last updated at 2024/06/21 21:28:43 UT
Marc W. Buie, Southwest Research Institute