Event between (82155) 01FZ173 and star GA0580:08280999 with event index number of 2437249
Geocentric closest approach at 2028/01/28 09:18:36 UTC
J2000 position of star is 15:52:02.1 -31:13:56
Equinox of date position of star is 15:53:34.2 -31:18:15
Stellar brightness G=16.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 85 degrees from the moon.
Moon is 3% illuminated.
Apparent brightness V=21.9
Object is 35.6 AU from the Sun
and 36.0 AU from the Earth.
Apparent velocity is 19.8
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 181 seconds.
The 1-sigma cross-track error in the shadow position is
2702 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 -- 7.2 sec chord
Dynamical classification is SCATNEAR
Star training set for 82155, (2028/01/28 09:21UT) Object RA Dec mag sep mel Antares 16:31:08.0 -26:29:30 0.9 9.48 77 Eta Lup 16:01:59.5 -38:28:27 2.8 7.35 82 PPM 294436 15:58:00.5 -31:51:57 6.5 1.05 84 PPM 294378 15:54:58.4 -30:51:39 7.7 0.52 85 PPM 294352 15:53:33.7 -31:18:30 9.1 0.05 85 82155 15:53:47.8 -31:18:52 16.0 85 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, (2028/01/28 09:21UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 9.48 77 Eta Lup 16:00:07.3 -38:23:48 2.8 7.35 82 PPM 294436 15:56:14.1 -31:47:09 6.5 1.05 84 PPM 294378 15:53:12.9 -30:46:45 7.7 0.52 85 PPM 294352 15:51:48.0 -31:13:33 9.1 0.05 85 82155 15:52:02.1 -31:13:56 16.0 85 Positions are for J2000
Event circumstances last updated at 2024/06/23 21:27:56 UT
Marc W. Buie, Southwest Research Institute