Event between 14WC509 and star GA1140:02804683 with event index number of 1800490
Geocentric closest approach at 2021/03/12 17:19:43 UTC
J2000 position of star is 07:21:27.2 +24:28:19
Equinox of date position of star is 07:22:44.0 +24:25:51
Stellar brightness G=15.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 124 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=22.4
TNO is 32.5 AU from the Sun
and 32.0 AU from the Earth.
The TNO is moving 8.5
km/sec on the sky relative to the star, or,
1.3 arcsec/hr.
The 1-sigma error in the time of the event is 194 seconds.
The 1-sigma cross-track error in the shadow position is
1279 km.
The TNO has an absolute magnitude Hv=7.1
Diameter=229.1 km assuming a 5% albedo -- 27.1 sec chord
Diameter=93.5 km assuming a 30% albedo -- 11.1 sec chord
Dynamical classification is 3:2E
Star training set for 14WC509, (2021/03/12 17:20UT) Object RA Dec mag sep mel Pollux 07:46:36.6 +27:58:24 1.1 6.42 129 57 Gem 07:24:45.9 +25:00:29 5.9 0.74 125 PPM 097353 07:20:13.0 +25:54:04 8.2 1.58 124 PPM 097443 07:24:31.8 +24:19:12 10.0 0.42 125 PPM 097400 07:22:23.9 +24:35:23 10.6 0.18 124 14WC509 07:22:44.5 +24:25:50 15.6 125 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 14WC509, (2021/03/12 17:20UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 6.42 129 57 Gem 07:23:28.4 +25:03:01 5.9 0.74 125 PPM 097353 07:18:54.9 +25:56:28 8.2 1.58 124 PPM 097443 07:23:14.7 +24:21:44 10.0 0.42 125 PPM 097400 07:21:06.5 +24:37:52 10.6 0.18 124 14WC509 07:21:27.2 +24:28:19 15.6 124 Positions are for J2000
Event circumstances last updated at 2021/01/19 21:04:56 UT
Marc W. Buie, Southwest Research Institute