Event between (558095) 14WA536 and star GA0680:05116582 with event index number of 2560861
Geocentric closest approach at 2028/03/05 12:24:07 UTC
J2000 position of star is 10:31:08.9 -20:50:05
Equinox of date position of star is 10:32:19.0 -20:57:36
Stellar brightness G=14.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 81 degrees from the moon.
Moon is 62% illuminated.
Apparent brightness V=22.0
Object is 30.6 AU from the Sun
and 29.7 AU from the Earth.
Apparent velocity is 23.5
km/sec on the sky relative to the star, or,
3.9 arcsec/hr.
The 1-sigma error in the time of the event is 102 seconds.
The 1-sigma cross-track error in the shadow position is
1754 km.
The object has an absolute magnitude Hv=7.1
Diameter=222.9 km assuming a 5% albedo -- 9.7 sec chord
Diameter=91.0 km assuming a 30% albedo -- 4.0 sec chord
Dynamical classification is 5:2EEE
Star training set for 558095, (2028/03/05 12:27UT) Object RA Dec mag sep mel Regulus 10:09:52.3 +11:49:42 1.3 33.28 60 Alphard 09:28:58.3 -08:46:56 2.0 19.58 61 PPM 222856 10:23:33.9 -20:00:35 6.3 2.31 79 PPM 257835 10:34:52.3 -20:19:38 8.5 0.86 81 PPM 257771 10:32:17.5 -21:11:14 9.5 0.21 81 558095 10:32:30.2 -20:58:48 14.8 81 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, (2028/03/05 12:27UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 33.28 60 Alphard 09:27:35.2 -08:39:30 2.0 19.58 61 PPM 222856 10:22:12.9 -19:52:00 6.3 2.31 79 PPM 257835 10:33:30.7 -20:10:52 8.5 0.86 81 PPM 257771 10:30:56.3 -21:02:31 9.5 0.21 81 558095 10:31:08.9 -20:50:05 14.8 81 Positions are for J2000
Event circumstances last updated at 2024/04/19 00:42:57 UT
Marc W. Buie, Southwest Research Institute