Event between (82155) 01FZ173 and star GA0580:08250673 with event index number of 2437260
Geocentric closest approach at 2028/04/22 05:37:53 UTC
J2000 position of star is 15:50:53.2 -31:38:18
Equinox of date position of star is 15:52:25.5 -31:42:39
Stellar brightness G=15.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 121 degrees from the moon.
Moon is 7% illuminated.
Apparent brightness V=21.8
Object is 35.7 AU from the Sun
and 34.8 AU from the Earth.
Apparent velocity is 19.7
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 197 seconds.
The 1-sigma cross-track error in the shadow position is
1944 km.
The object has an absolute magnitude Hv=6.2
Diameter=345.2 km assuming a 5% albedo -- 17.8 sec chord
Diameter=140.9 km assuming a 30% albedo -- 7.3 sec chord
Dynamical classification is SCATNEAR
Star training set for 82155, (2028/04/22 05:35UT) Object RA Dec mag sep mel Antares 16:31:08.9 -26:29:32 0.9 9.89 114 Eta Lup 16:02:00.4 -38:28:29 2.8 7.02 117 PPM 294436 15:58:01.4 -31:51:59 6.5 1.15 120 PPM 294315 15:51:35.2 -32:13:02 8.5 0.55 121 PPM 294327 15:52:30.4 -31:47:04 9.9 0.07 121 82155 15:52:40.0 -31:43:19 15.9 121 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 82155, (2028/04/22 05:35UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 9.89 114 Eta Lup 16:00:07.3 -38:23:48 2.8 7.02 117 PPM 294436 15:56:14.1 -31:47:09 6.5 1.15 120 PPM 294315 15:49:48.1 -32:07:58 8.5 0.55 121 PPM 294327 15:50:43.6 -31:42:02 9.9 0.07 121 82155 15:50:53.2 -31:38:18 15.9 121 Positions are for J2000
Event circumstances last updated at 2024/06/23 21:33:14 UT
Marc W. Buie, Southwest Research Institute