Event between 05JJ186 and star GA0640:24721913 with event index number of 1081458
Geocentric closest approach at 2021/05/12 20:31:36 UTC
J2000 position of star is 18:13:26.5 -25:24:35
Equinox of date position of star is 18:14:44.4 -25:24:09
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 151 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=22.9
TNO is 40.9 AU from the Sun
and 40.1 AU from the Earth.
The TNO is moving 17.2
km/sec on the sky relative to the star, or,
2.1 arcsec/hr.
The 1-sigma error in the time of the event is 4515 seconds.
The 1-sigma cross-track error in the shadow position is
5566 km.
The TNO has an absolute magnitude Hv=6.7
Diameter=270.4 km assuming a 5% albedo -- 15.7 sec chord
Diameter=110.4 km assuming a 30% albedo -- 6.4 sec chord
Dynamical classification is CLASSICAL
Star training set for 05JJ186, (2021/05/12 20:32UT) Object RA Dec mag sep mel Antares 16:30:43.2 -26:28:39 0.9 23.38 172 Nunki 18:56:35.3 -26:16:06 2.0 9.45 141 11 Sgr 18:13:01.6 -23:41:42 4.5 1.75 151 PPM 268072 18:14:41.6 -25:08:40 8.4 0.26 151 PPM 268091 18:15:27.3 -25:18:12 8.9 0.19 151 05JJ186 18:14:45.7 -25:24:09 16.7 150 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 05JJ186, (2021/05/12 20:32UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 23.38 172 Nunki 18:55:15.9 -26:17:49 2.0 9.45 141 11 Sgr 18:11:43.4 -23:42:05 4.5 1.75 151 PPM 268072 18:13:22.6 -25:09:06 8.4 0.26 151 PPM 268091 18:14:08.2 -25:18:40 8.9 0.19 151 05JJ186 18:13:26.5 -25:24:35 16.7 151 Positions are for J2000
Event circumstances last updated at 2021/01/02 19:42:46 UT
Marc W. Buie, Southwest Research Institute