Event between (524179) 01FQ185 and star GA0760:05086570 with event index number of 1591603
Geocentric closest approach at 2021/01/05 18:33:01 UTC
J2000 position of star is 14:54:25.4 -13:18:30
Equinox of date position of star is 14:55:34.6 -13:23:34
Stellar brightness G=16.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 38 degrees from the moon.
Moon is 57% illuminated.
TNO apparent brightness V=22.8
TNO is 37.2 AU from the Sun
and 37.6 AU from the Earth.
The TNO is moving 20.5
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 67 seconds.
The 1-sigma cross-track error in the shadow position is
1365 km.
The TNO has an absolute magnitude Hv=6.9
Diameter=251.2 km assuming a 5% albedo -- 12.3 sec chord
Diameter=102.6 km assuming a 30% albedo -- 5.0 sec chord
Dynamical classification is 2:1E
Star training set for 524179, (2021/01/05 18:33UT) Object RA Dec mag sep mel Spica 13:26:18.2 -11:16:13 1.0 21.90 18 27Bet Lib 15:18:08.4 -09:27:33 2.6 6.78 42 13Xi 1Lib 14:55:31.5 -11:58:59 5.9 1.41 37 PPM 229495 14:56:56.5 -13:17:24 8.5 0.35 38 PPM 229445 14:54:34.1 -13:32:46 9.3 0.29 37 524179 14:55:34.7 -13:23:34 16.5 38 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 524179, (2021/01/05 18:33UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 21.90 18 27Bet Lib 15:17:00.3 -09:22:59 2.6 6.78 42 13Xi 1Lib 14:54:22.8 -11:53:54 5.9 1.41 37 PPM 229495 14:55:47.3 -13:12:21 8.5 0.35 38 PPM 229445 14:53:24.9 -13:27:40 9.3 0.29 37 524179 14:54:25.4 -13:18:30 16.5 38 Positions are for J2000
Event circumstances last updated at 2020/12/23 00:25:01 UT
Marc W. Buie, Southwest Research Institute