Event between (577578) 13GW136 and star GA0720:05732738 with event index number of 2549091
Geocentric closest approach at 2022/03/07 02:06:27 UTC
J2000 position of star is 15:52:15.0 -17:59:06
Equinox of date position of star is 15:53:30.0 -18:02:56
Stellar brightness G=15.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 160 degrees from the moon.
Moon is 20% illuminated.
TNO apparent brightness V=22.8
TNO is 31.7 AU from the Sun
and 31.4 AU from the Earth.
The TNO is moving 2.7
km/sec on the sky relative to the star, or,
0.4 arcsec/hr.
The 1-sigma error in the time of the event is 1241 seconds.
The 1-sigma cross-track error in the shadow position is
1188 km.
The TNO has an absolute magnitude Hv=7.6
Diameter=182.8 km assuming a 5% albedo -- 69.0 sec chord
Diameter=74.6 km assuming a 30% albedo -- 28.2 sec chord
Dynamical classification is 2:1E
Star training set for 577578, (2022/03/07 02:06UT) Object RA Dec mag sep mel Antares 16:30:46.3 -26:28:46 0.9 12.05 149 8Bet1Sco 16:06:43.8 -19:51:52 2.6 3.61 156 46The Lib 15:55:05.5 -16:47:34 4.3 1.31 159 PPM 230840 15:52:13.1 -18:06:42 8.5 0.32 160 PPM 230884 15:54:06.1 -18:13:26 9.8 0.22 159 577578 15:53:31.3 -18:03:00 15.7 159 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 577578, (2022/03/07 02:06UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 12.05 149 8Bet1Sco 16:05:26.2 -19:48:20 2.6 3.61 156 46The Lib 15:53:49.7 -16:43:43 4.3 1.31 159 PPM 230840 15:50:56.7 -18:02:46 8.5 0.32 160 PPM 230884 15:52:49.6 -18:09:33 9.8 0.22 159 577578 15:52:15.0 -17:59:06 15.7 160 Positions are for J2000
Event circumstances last updated at 2021/10/12 02:05:07 UT
Marc W. Buie, Southwest Research Institute