Event between (281371) 08FC76 and star GA0880:03086462 with event index number of 2457526
Geocentric closest approach at 2022/12/12 20:04:25 UTC
J2000 position of star is 07:41:43.3 -01:31:18
Equinox of date position of star is 07:42:52.5 -01:34:35
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 31 degrees from the moon.
Moon is 81% illuminated.
TNO apparent brightness V=20.9
TNO is 13.4 AU from the Sun
and 12.6 AU from the Earth.
The TNO is moving 18.9
km/sec on the sky relative to the star, or,
7.4 arcsec/hr.
The 1-sigma error in the time of the event is 85 seconds.
The 1-sigma cross-track error in the shadow position is
1088 km.
The TNO has an absolute magnitude Hv=9.5
Diameter=83.2 km assuming a 5% albedo -- 4.0 sec chord
Diameter=34.0 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
Star training set for 281371, (2022/12/12 20:04UT) Object RA Dec mag sep mel Sirius 06:46:09.6 -16:44:55 -1.5 20.61 52 15Rho Pup 08:08:31.3 -24:22:18 2.8 23.62 48 25 Mon 07:38:25.1 -04:09:50 5.1 2.82 34 PPM 177055 07:42:28.4 -01:35:47 8.0 0.10 31 281371 07:42:53.1 -01:34:37 16.9 31 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, (2022/12/12 20:04UT) Object RA Dec mag sep mel Sirius 06:45:08.0 -16:43:24 -1.5 20.61 52 15Rho Pup 08:07:32.5 -24:18:14 2.8 23.62 48 25 Mon 07:37:16.6 -04:06:39 5.1 2.82 34 PPM 177055 07:41:18.6 -01:32:30 8.0 0.10 31 281371 07:41:43.3 -01:31:18 16.9 31 Positions are for J2000
Event circumstances last updated at 2022/10/02 04:11:23 UT
Marc W. Buie, Southwest Research Institute