Event between (500877) 13JE64 and star GA0720:06129863 with event index number of 220901
Geocentric closest approach at 2019/09/27 09:22:58 UTC
J2000 position of star is 16:24:32.5 -16:23:29
Equinox of date position of star is 16:25:39.8 -16:26:07
Stellar brightness G=16.0,
use SENSEUP=128
Star is 82 degrees from the moon.
Moon is 3% illuminated.
TNO apparent brightness V=24.1
TNO is 37.3 AU from the Sun
and 37.8 AU from the Earth.
The TNO is moving 19.3
km/sec on the sky relative to the star, or,
2.5 arcsec/hr.
The 1-sigma error in the time of the event is 106 seconds.
The 1-sigma cross-track error in the shadow position is
1547 km.
The TNO has an absolute magnitude Hv=8.2
Diameter=138.0 km assuming a 5% albedo -- 7.2 sec chord
Diameter=56.4 km assuming a 30% albedo -- 2.9 sec chord
Dynamical classification is 2:1E
Star training set for 500877, (2019/09/27 09:23UT) Object RA Dec mag sep mel Antares 16:30:37.2 -26:28:27 0.9 10.10 86 8Bet1Sco 16:06:35.3 -19:51:29 2.6 5.68 79 8Phi Oph 16:32:16.3 -16:39:15 4.0 1.60 84 PPM 231620 16:24:01.7 -17:03:51 7.3 0.74 82 PPM 231671 16:26:15.8 -16:33:32 9.9 0.19 83 500877 16:25:40.3 -16:26:08 16.0 83 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 500877, (2019/09/27 09:23UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 10.10 86 8Bet1Sco 16:05:26.2 -19:48:20 2.6 5.68 79 8Phi Oph 16:31:08.4 -16:36:46 4.0 1.60 84 PPM 231620 16:22:53.6 -17:01:09 7.3 0.74 82 PPM 231671 16:25:07.9 -16:30:54 9.9 0.19 83 500877 16:24:32.5 -16:23:29 16.0 82 Positions are for J2000
Event circumstances last updated at 2019/08/03 22:17:50 UT
Marc W. Buie, Southwest Research Institute