Event between (281371) 08FC76 and star GA0760:04163992 with event index number of 2458352
Geocentric closest approach at 2028/04/22 02:09:22 UTC
J2000 position of star is 09:18:12.1 -13:32:37
Equinox of date position of star is 09:19:21.8 -13:38:49
Stellar brightness G=15.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 140 degrees from the moon.
Moon is 7% illuminated.
Apparent brightness V=21.8
Object is 16.0 AU from the Sun
and 15.6 AU from the Earth.
Apparent velocity is 13.4
km/sec on the sky relative to the star, or,
4.2 arcsec/hr.
The 1-sigma error in the time of the event is 58 seconds.
The 1-sigma cross-track error in the shadow position is
1213 km.
The object has an absolute magnitude Hv=9.5
Diameter=83.2 km assuming a 5% albedo -- 5.8 sec chord
Diameter=34.0 km assuming a 30% albedo -- 2.3 sec chord
Dynamical classification is CENTAURR
Star training set for 281371, (2028/04/22 02:09UT) Object RA Dec mag sep mel Regulus 10:09:52.7 +11:49:40 1.3 28.38 148 Alphard 09:28:58.7 -08:46:58 2.0 5.40 143 PPM 221313 09:18:28.3 -14:41:38 5.8 1.06 139 PPM 221375 09:21:16.3 -13:25:37 7.4 0.48 140 PPM 221336 09:19:24.5 -13:39:35 9.5 0.04 140 281371 09:19:33.3 -13:39:50 15.4 140 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 281371, (2028/04/22 02:09UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 28.38 148 Alphard 09:27:35.2 -08:39:30 2.0 5.40 143 PPM 221313 09:17:07.7 -14:34:27 5.8 1.06 139 PPM 221375 09:19:55.0 -13:18:21 7.4 0.48 140 PPM 221336 09:18:03.3 -13:32:23 9.5 0.04 140 281371 09:18:12.1 -13:32:37 15.4 140 Positions are for J2000
Event circumstances last updated at 2024/04/24 02:53:17 UT
Marc W. Buie, Southwest Research Institute