Event between (524179) 01FQ185 and star GA0720:05650766 with event index number of 1866269
Geocentric closest approach at 2028/04/01 00:09:45 UTC
J2000 position of star is 15:43:20.8 -16:24:39
Equinox of date position of star is 15:44:43.5 -16:29:11
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 157 degrees from the moon.
Moon is 31% illuminated.
Apparent brightness V=22.8
Object is 37.8 AU from the Sun
and 37.1 AU from the Earth.
Apparent velocity is 15.1
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 391 seconds.
The 1-sigma cross-track error in the shadow position is
4183 km.
The object has an absolute magnitude Hv=6.9
Diameter=251.2 km assuming a 5% albedo -- 16.6 sec chord
Diameter=102.6 km assuming a 30% albedo -- 6.8 sec chord
Dynamical classification is 2:1E
Star training set for 524179, (2028/04/01 00:10UT) Object RA Dec mag sep mel Antares 16:31:08.7 -26:29:32 0.9 14.66 170 8Bet1Sco 16:07:05.1 -19:52:49 2.6 6.25 163 44Eta Lib 15:45:40.1 -15:45:38 5.4 0.76 157 PPM 230630 15:44:22.1 -16:06:08 7.2 0.42 157 PPM 230641 15:44:43.6 -16:24:26 9.5 0.11 157 524179 15:44:56.9 -16:29:55 16.9 157 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 524179, (2028/04/01 00:10UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 14.66 170 8Bet1Sco 16:05:26.2 -19:48:20 2.6 6.25 163 44Eta Lib 15:44:04.4 -15:40:24 5.4 0.76 157 PPM 230630 15:42:46.2 -16:00:51 7.2 0.42 157 PPM 230641 15:43:07.6 -16:19:09 9.5 0.11 157 524179 15:43:20.8 -16:24:39 16.9 157 Positions are for J2000
Event circumstances last updated at 2024/04/24 21:38:07 UT
Marc W. Buie, Southwest Research Institute