Event between (123509) 00WK183 and star GA1100:01576678 with event index number of 147951
Geocentric closest approach at 2018/09/09 13:40:38 UTC
J2000 position of star is 05:55:20.1 +21:29:39
Equinox of date position of star is 05:56:27.3 +21:29:46
Stellar brightness G=14.7,
use SENSEUP=128
Star is 76 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=23.1
TNO is 42.6 AU from the Sun
and 42.8 AU from the Earth.
The TNO is moving 10.6
km/sec on the sky relative to the star, or,
1.2 arcsec/hr.
The 1-sigma error in the time of the event is 3665 seconds.
The 1-sigma cross-track error in the shadow position is
5354 km.
The TNO has an absolute magnitude Hv=6.6
Diameter=288.4 km assuming a 5% albedo -- 27.3 sec chord
Diameter=117.7 km assuming a 30% albedo -- 11.1 sec chord
Dynamical classification is CLASSICAL
Star training set for 123509, (2018/09/09 13:41UT) Object RA Dec mag sep mel Betelgeuse 05:56:11.1 +07:24:33 0.4 14.09 77 Alnath 05:27:28.5 +28:37:17 1.6 9.68 81 54Chi1Ori 05:55:29.4 +20:16:41 5.1 1.24 76 PPM 095070 05:56:07.7 +21:24:29 8.0 0.12 76 123509 05:56:27.4 +21:29:46 14.7 75 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 123509, (2018/09/09 13:41UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 14.09 77 Alnath 05:26:17.5 +28:36:23 1.6 9.68 81 54Chi1Ori 05:54:22.7 +20:16:33 5.1 1.24 76 PPM 095070 05:55:00.4 +21:24:22 8.0 0.12 76 123509 05:55:20.1 +21:29:39 14.7 76 Positions are for J2000
Event circumstances last updated at 2018/08/26 16:04:59 UT
Marc W. Buie, Southwest Research Institute