Event between (281371) 08FC76 and star GA0880:02795504 with event index number of 2457624
Geocentric closest approach at 2023/04/04 09:52:55 UTC
J2000 position of star is 07:23:53.9 -00:23:29
Equinox of date position of star is 07:25:04.5 -00:26:15
Stellar brightness G=12.8,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 65 degrees from the moon.
Moon is 97% illuminated.
Apparent brightness V=21.1
Object is 13.5 AU from the Sun
and 13.3 AU from the Earth.
Apparent velocity is 9.0
km/sec on the sky relative to the star, or,
3.4 arcsec/hr.
The 1-sigma error in the time of the event is 77 seconds.
The 1-sigma cross-track error in the shadow position is
968 km.
The object has an absolute magnitude Hv=9.5
Diameter=83.2 km assuming a 5% albedo -- 8.4 sec chord
Diameter=34.0 km assuming a 30% albedo -- 3.4 sec chord
Dynamical classification is CENTAURR
Star training set for 281371, (2023/04/04 09:53UT) Object RA Dec mag sep mel Sirius 06:46:10.4 -16:44:56 -1.5 18.92 77 Alhena 06:39:03.3 +16:22:39 1.9 20.29 75 PPM 152483 07:23:15.1 +00:07:53 5.8 0.73 65 PPM 176881 07:24:20.8 -00:15:17 8.4 0.26 65 PPM 176896 07:25:30.2 -00:15:48 8.7 0.20 65 PPM 176897 07:25:35.7 -00:28:00 10.5 0.13 65 281371 07:25:05.2 -00:26:17 12.8 65 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, (2023/04/04 09:53UT) Object RA Dec mag sep mel Sirius 06:45:08.0 -16:43:24 -1.5 18.92 77 Alhena 06:37:42.8 +16:23:57 1.9 20.29 75 PPM 152483 07:22:03.5 +00:10:37 5.8 0.73 65 PPM 176881 07:23:09.4 -00:12:30 8.4 0.26 65 PPM 176896 07:24:18.8 -00:13:00 8.7 0.20 65 PPM 176897 07:24:24.4 -00:25:11 10.5 0.13 65 281371 07:23:53.9 -00:23:29 12.8 65 Positions are for J2000
Event circumstances last updated at 2023/01/09 03:35:23 UT
Marc W. Buie, Southwest Research Institute