Event between (82155) 01FZ173 and star GA0640:06549074 with event index number of 1117228
Geocentric closest approach at 2021/06/10 16:07:52 UTC
J2000 position of star is 14:40:30.4 -25:13:30
Equinox of date position of star is 14:41:43.9 -25:18:53
Stellar brightness G=15.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 142 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=21.5
TNO is 33.7 AU from the Sun
and 32.8 AU from the Earth.
The TNO is moving 18.1
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 100 seconds.
The 1-sigma cross-track error in the shadow position is
1462 km.
The TNO has an absolute magnitude Hv=6.2
Diameter=343.6 km assuming a 5% albedo -- 19.0 sec chord
Diameter=140.3 km assuming a 30% albedo -- 7.7 sec chord
Dynamical classification is SCATNEAR
Star training set for 82155, (2021/06/10 16:08UT) Object RA Dec mag sep mel Spica 13:26:19.5 -11:16:21 1.0 22.70 121 5The Cen 14:07:57.1 -36:28:28 2.1 13.29 136 4 Lib 14:44:28.2 -25:05:17 5.9 0.66 143 PPM 263297 14:44:24.7 -25:12:01 8.4 0.61 143 PPM 263252 14:42:17.6 -25:29:56 9.8 0.22 143 82155 14:41:45.1 -25:18:58 15.3 143 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 82155, (2021/06/10 16:08UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 22.70 121 5The Cen 14:06:40.0 -36:22:23 2.1 13.29 136 4 Lib 14:43:13.5 -24:59:52 5.9 0.66 143 PPM 263297 14:43:09.9 -25:06:37 8.4 0.61 143 PPM 263252 14:41:02.9 -25:24:29 9.8 0.22 143 82155 14:40:30.4 -25:13:30 15.3 142 Positions are for J2000
Event circumstances last updated at 2021/02/07 20:43:35 UT
Marc W. Buie, Southwest Research Institute