Event between 12LB27 and star GA0940:14956493 with event index number of 1793628
Geocentric closest approach at 2020/11/12 22:11:39 UTC
J2000 position of star is 19:52:59.1 +04:45:37
Equinox of date position of star is 19:54:00.7 +04:48:54
Stellar brightness G=16.3,
use SENSEUP=128
Star is 100 degrees from the moon.
Moon is 8% illuminated.
TNO apparent brightness V=22.3
TNO is 15.6 AU from the Sun
and 15.9 AU from the Earth.
The TNO is moving 22.3
km/sec on the sky relative to the star, or,
7.0 arcsec/hr.
The 1-sigma error in the time of the event is 60 seconds.
The 1-sigma cross-track error in the shadow position is
789 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=70.5 km assuming a 5% albedo -- 2.7 sec chord
Diameter=28.8 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURR
Star training set for 12LB27, (2020/11/12 22:12UT) Object RA Dec mag sep mel Vega 18:37:38.7 +38:48:15 0.0 38.15 84 Tarazed 19:47:15.1 +10:39:56 2.7 6.09 98 PPM 168878 19:54:24.9 +04:27:20 6.5 0.37 100 PPM 168844 19:53:30.5 +04:56:20 10.6 0.18 99 12LB27 19:54:01.2 +04:48:56 16.3 100 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 12LB27, (2020/11/12 22:12UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 38.15 84 Tarazed 19:46:15.6 +10:36:48 2.7 6.09 98 PPM 168878 19:53:22.6 +04:24:01 6.5 0.37 100 PPM 168844 19:52:28.4 +04:53:02 10.6 0.18 99 12LB27 19:52:59.1 +04:45:37 16.3 100 Positions are for J2000
Event circumstances last updated at 2020/09/01 21:18:24 UT
Marc W. Buie, Southwest Research Institute