Event between 11QY100 and star GA0860:00699520 with event index number of 1586274
Geocentric closest approach at 2020/08/31 15:42:46 UTC
J2000 position of star is 05:37:57.7 -02:35:54
Equinox of date position of star is 05:38:58.6 -02:35:16
Stellar brightness G=15.8,
use SENSEUP=128
Star is 117 degrees from the moon.
Moon is 97% illuminated.
TNO apparent brightness V=23.2
TNO is 19.6 AU from the Sun
and 19.8 AU from the Earth.
The TNO is moving 20.6
km/sec on the sky relative to the star, or,
5.2 arcsec/hr.
The 1-sigma error in the time of the event is 58 seconds.
The 1-sigma cross-track error in the shadow position is
871 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=134.3 km assuming a 5% albedo -- 2.9 sec chord
Diameter=54.8 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is CENTAURR
Star training set for 11QY100, (2020/08/31 15:43UT) Object RA Dec mag sep mel Rigel 05:15:31.9 -08:10:45 0.1 8.08 110 34Del Ori 05:33:03.8 -00:17:07 2.2 2.74 117 PPM 188321 05:40:33.0 -03:33:17 6.3 1.04 117 PPM 175938 05:36:48.9 -02:21:44 8.5 0.59 117 PPM 188275 05:38:42.9 -02:25:58 8.8 0.17 117 11QY100 05:39:00.0 -02:35:15 15.8 118 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 11QY100, (2020/08/31 15:43UT) Object RA Dec mag sep mel Rigel 05:14:32.3 -08:12:06 0.1 8.08 110 34Del Ori 05:32:00.4 -00:17:57 2.2 2.74 117 PPM 188321 05:39:31.2 -03:33:53 6.3 1.04 117 PPM 175938 05:35:46.5 -02:22:27 8.5 0.59 117 PPM 188275 05:37:40.5 -02:26:37 8.8 0.17 117 11QY100 05:37:57.7 -02:35:54 15.8 117 Positions are for J2000
Event circumstances last updated at 2020/03/10 21:57:38 UT
Marc W. Buie, Southwest Research Institute