Event between (553898) 12BZ159 and star GA0900:03801456 with event index number of 2226348
Geocentric closest approach at 2022/03/02 01:00:46 UTC
J2000 position of star is 11:48:17.9 +01:41:24
Equinox of date position of star is 11:49:24.9 +01:34:08
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 155 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=22.5
TNO is 38.1 AU from the Sun
and 37.2 AU from the Earth.
The TNO is moving 23.7
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 134 seconds.
The 1-sigma cross-track error in the shadow position is
2001 km.
The TNO has an absolute magnitude Hv=6.7
Diameter=280.6 km assuming a 5% albedo -- 11.8 sec chord
Diameter=114.5 km assuming a 30% albedo -- 4.8 sec chord
Dynamical classification is CLASSICAL
Star training set for 553898, (2022/03/02 01:01UT) Object RA Dec mag sep mel Regulus 10:09:33.0 +11:51:29 1.3 26.82 175 Denebola 11:50:11.4 +14:26:53 2.1 12.88 160 5Bet Vir 11:51:51.0 +01:38:23 3.6 0.61 155 PPM 158245 11:50:54.9 +02:06:30 8.0 0.66 155 PPM 158212 11:48:33.7 +01:53:24 8.9 0.39 156 PPM 158225 11:49:11.9 +01:40:34 11.3 0.12 155 553898 11:49:26.1 +01:34:01 16.8 155 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 553898, (2022/03/02 01:01UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 26.82 175 Denebola 11:49:02.9 +14:34:17 2.1 12.88 160 5Bet Vir 11:50:42.8 +01:45:47 3.6 0.61 155 PPM 158245 11:49:46.7 +02:13:54 8.0 0.66 155 PPM 158212 11:47:25.5 +02:00:48 8.9 0.39 156 PPM 158225 11:48:03.7 +01:47:58 11.3 0.12 155 553898 11:48:17.9 +01:41:24 16.8 155 Positions are for J2000
Event circumstances last updated at 2021/10/12 02:04:51 UT
Marc W. Buie, Southwest Research Institute