Event between (281371) 08FC76 and star GA0880:02814818 with event index number of 2457636
Geocentric closest approach at 2023/04/17 11:33:41 UTC
J2000 position of star is 07:24:50.5 -00:08:50
Equinox of date position of star is 07:26:01.2 -00:11:38
Stellar brightness G=12.9,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 117 degrees from the moon.
Moon is 9% illuminated.
Apparent brightness V=21.2
Object is 13.5 AU from the Sun
and 13.6 AU from the Earth.
Apparent velocity is 12.7
km/sec on the sky relative to the star, or,
4.6 arcsec/hr.
The 1-sigma error in the time of the event is 74 seconds.
The 1-sigma cross-track error in the shadow position is
752 km.
The object has an absolute magnitude Hv=9.5
Diameter=83.2 km assuming a 5% albedo -- 6.0 sec chord
Diameter=34.0 km assuming a 30% albedo -- 2.4 sec chord
Dynamical classification is CENTAURR
Star training set for 281371, (2023/04/17 11:34UT) Object RA Dec mag sep mel Sirius 06:46:10.5 -16:44:56 -1.5 19.25 105 Alhena 06:39:03.4 +16:22:39 1.9 20.22 107 PPM 152483 07:23:15.2 +00:07:53 5.8 0.77 116 PPM 176881 07:24:20.9 -00:15:17 8.4 0.43 117 PPM 176896 07:25:30.3 -00:15:49 8.7 0.15 117 281371 07:26:02.0 -00:11:40 12.9 117 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, (2023/04/17 11:34UT) Object RA Dec mag sep mel Sirius 06:45:08.0 -16:43:24 -1.5 19.25 105 Alhena 06:37:42.8 +16:23:57 1.9 20.22 107 PPM 152483 07:22:03.5 +00:10:37 5.8 0.77 116 PPM 176881 07:23:09.4 -00:12:30 8.4 0.43 117 PPM 176896 07:24:18.8 -00:13:00 8.7 0.15 117 281371 07:24:50.5 -00:08:50 12.9 117 Positions are for J2000
Event circumstances last updated at 2023/01/09 03:37:50 UT
Marc W. Buie, Southwest Research Institute