Event between (281371) 08FC76 and star GA0920:02154497 with event index number of 2457216
Geocentric closest approach at 2022/01/31 23:38:37 UTC
J2000 position of star is 07:01:03.3 +02:01:18
Equinox of date position of star is 07:02:11.7 +01:59:21
Stellar brightness G=16.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 147 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=20.5
TNO is 12.9 AU from the Sun
and 12.1 AU from the Earth.
The TNO is moving 19.5
km/sec on the sky relative to the star, or,
8.0 arcsec/hr.
The 1-sigma error in the time of the event is 65 seconds.
The 1-sigma cross-track error in the shadow position is
742 km.
The TNO has an absolute magnitude Hv=9.3
Diameter=83.2 km assuming a 5% albedo -- 4.3 sec chord
Diameter=34.0 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
Star training set for 281371, (2022/01/31 23:39UT) Object RA Dec mag sep mel Betelgeuse 05:56:22.1 +07:24:34 0.4 17.27 135 Alhena 06:38:59.3 +16:22:43 1.9 15.48 148 PPM 151661 07:00:06.7 +03:34:15 6.0 1.67 147 PPM 151694 07:00:59.4 +01:59:21 8.2 0.30 146 PPM 151739 07:02:08.7 +02:05:00 8.8 0.10 147 281371 07:02:12.2 +01:59:20 16.4 147 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, (2022/01/31 23:39UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 17.27 135 Alhena 06:37:42.8 +16:23:57 1.9 15.48 148 PPM 151661 06:58:57.0 +03:36:08 6.0 1.67 147 PPM 151694 06:59:50.5 +02:01:16 8.2 0.30 146 PPM 151739 07:00:59.7 +02:06:57 8.8 0.10 147 281371 07:01:03.3 +02:01:18 16.4 147 Positions are for J2000
Event circumstances last updated at 2021/12/05 02:03:33 UT
Marc W. Buie, Southwest Research Institute