Event between (558095) 14WA536 and star GA0680:05166181 with event index number of 2560888
Geocentric closest approach at 2028/11/27 03:28:31 UTC
J2000 position of star is 10:46:41.3 -21:25:33
Equinox of date position of star is 10:47:52.0 -21:33:16
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 153 degrees from the moon.
Moon is 78% illuminated.
Apparent brightness V=22.2
Object is 30.5 AU from the Sun
and 30.8 AU from the Earth.
Apparent velocity is 20.1
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 101 seconds.
The 1-sigma cross-track error in the shadow position is
3018 km.
The object has an absolute magnitude Hv=7.1
Diameter=222.9 km assuming a 5% albedo -- 11.4 sec chord
Diameter=91.0 km assuming a 30% albedo -- 4.6 sec chord
Dynamical classification is 5:2EEE
Star training set for 558095, (2028/11/27 03:25UT) Object RA Dec mag sep mel Regulus 10:09:54.6 +11:49:29 1.3 34.69 140 4Gam Crv 12:17:17.9 -17:42:08 2.6 21.34 171 PPM 258298 10:56:36.4 -20:49:11 6.4 2.13 155 PPM 258143 10:48:49.1 -22:00:02 8.5 0.45 153 PPM 258138 10:48:34.3 -21:40:31 9.0 0.15 153 558095 10:48:05.4 -21:34:43 16.9 153 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 558095, (2028/11/27 03:25UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 34.69 140 4Gam Crv 12:15:48.1 -17:32:30 2.6 21.34 171 PPM 258298 10:55:11.6 -20:39:54 6.4 2.13 155 PPM 258143 10:47:25.0 -21:50:51 8.5 0.45 153 PPM 258138 10:47:10.1 -21:31:20 9.0 0.15 153 558095 10:46:41.3 -21:25:33 16.9 153 Positions are for J2000
Event circumstances last updated at 2024/04/19 00:46:52 UT
Marc W. Buie, Southwest Research Institute