Event between (524179) 01FQ185 and star GA0760:05075358 with event index number of 1591608
Geocentric closest approach at 2021/05/03 02:36:58 UTC
J2000 position of star is 14:51:48.6 -12:58:40
Equinox of date position of star is 14:52:58.7 -13:03:52
Stellar brightness G=15.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 80 degrees from the moon.
Moon is 58% illuminated.
TNO apparent brightness V=22.6
TNO is 37.2 AU from the Sun
and 36.2 AU from the Earth.
The TNO is moving 24.1
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 127 seconds.
The 1-sigma cross-track error in the shadow position is
1801 km.
The TNO has an absolute magnitude Hv=6.9
Diameter=251.2 km assuming a 5% albedo -- 10.4 sec chord
Diameter=102.6 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is 2:1E
Star training set for 524179, (2021/05/03 02:37UT) Object RA Dec mag sep mel Spica 13:26:19.2 -11:16:19 1.0 21.25 100 27Bet Lib 15:18:09.5 -09:27:37 2.6 7.15 75 13Xi 1Lib 14:55:32.6 -11:59:03 5.9 1.25 80 PPM 229437 14:54:04.9 -12:43:50 8.2 0.43 80 PPM 229411 14:53:07.1 -13:04:20 9.9 0.03 80 524179 14:52:58.8 -13:03:52 15.2 80 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, (2021/05/03 02:37UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 21.25 100 27Bet Lib 15:17:00.3 -09:22:59 2.6 7.15 75 13Xi 1Lib 14:54:22.8 -11:53:54 5.9 1.25 80 PPM 229437 14:52:54.9 -12:38:39 8.2 0.43 80 PPM 229411 14:51:57.0 -12:59:08 9.9 0.03 80 524179 14:51:48.6 -12:58:40 15.2 80 Positions are for J2000
Event circumstances last updated at 2021/04/25 22:58:14 UT
Marc W. Buie, Southwest Research Institute