Event between (524531) 02XH91 and star GA1120:02986231 with event index number of 1592675
Geocentric closest approach at 2022/03/01 20:04:31 UTC
J2000 position of star is 08:11:05.3 +23:23:05
Equinox of date position of star is 08:12:23.3 +23:19:06
Stellar brightness G=16.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 150 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=22.5
TNO is 47.0 AU from the Sun
and 46.3 AU from the Earth.
The TNO is moving 18.8
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 198 seconds.
The 1-sigma cross-track error in the shadow position is
1895 km.
The TNO has an absolute magnitude Hv=5.7
Diameter=444.6 km assuming a 5% albedo -- 23.6 sec chord
Diameter=181.5 km assuming a 30% albedo -- 9.7 sec chord
Dynamical classification is CLASSICAL
Star training set for 524531, (2022/03/01 20:04UT) Object RA Dec mag sep mel Pollux 07:46:40.2 +27:58:15 1.1 7.43 144 PPM 098486 08:15:00.3 +23:04:10 6.5 0.65 151 PPM 098453 08:13:17.8 +23:19:36 9.7 0.21 151 PPM 098440 08:12:39.1 +23:26:55 11.4 0.14 150 524531 08:12:24.2 +23:19:04 16.1 151 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 524531, (2022/03/01 20:04UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 7.43 144 PPM 098486 08:13:41.6 +23:08:15 6.5 0.65 151 PPM 098453 08:11:58.9 +23:23:39 9.7 0.21 151 PPM 098440 08:11:20.2 +23:30:57 11.4 0.14 150 524531 08:11:05.3 +23:23:05 16.1 150 Positions are for J2000
Event circumstances last updated at 2021/12/06 01:47:20 UT
Marc W. Buie, Southwest Research Institute