Event between (281371) 08FC76 and star GA0920:02077492 with event index number of 2457235
Geocentric closest approach at 2022/02/20 21:08:27 UTC
J2000 position of star is 06:57:34.7 +02:17:27
Equinox of date position of star is 06:58:43.3 +02:15:37
Stellar brightness G=16.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 98 degrees from the moon.
Moon is 82% illuminated.
TNO apparent brightness V=20.6
TNO is 12.9 AU from the Sun
and 12.3 AU from the Earth.
The TNO is moving 13.8
km/sec on the sky relative to the star, or,
5.6 arcsec/hr.
The 1-sigma error in the time of the event is 83 seconds.
The 1-sigma cross-track error in the shadow position is
884 km.
The TNO has an absolute magnitude Hv=9.3
Diameter=83.2 km assuming a 5% albedo -- 6.0 sec chord
Diameter=34.0 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is CENTAURR
Star training set for 281371, (2022/02/20 21:08UT) Object RA Dec mag sep mel Betelgeuse 05:56:22.3 +07:24:34 0.4 16.36 114 Alhena 06:38:59.4 +16:22:43 1.9 14.93 104 PPM 151661 07:00:06.9 +03:34:14 6.0 1.36 98 PPM 151627 06:59:06.9 +02:15:40 7.8 0.10 98 281371 06:58:44.0 +02:15:35 16.0 98 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, (2022/02/20 21:08UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 16.36 114 Alhena 06:37:42.8 +16:23:57 1.9 14.93 104 PPM 151661 06:58:57.0 +03:36:08 6.0 1.36 98 PPM 151627 06:57:57.7 +02:17:32 7.8 0.10 98 281371 06:57:34.7 +02:17:27 16.0 98 Positions are for J2000
Event circumstances last updated at 2021/12/05 02:04:23 UT
Marc W. Buie, Southwest Research Institute