Event between 02WL21 and star GA1140:02316703 with event index number of 253612
Geocentric closest approach at 2020/04/14 09:41:34 UTC
J2000 position of star is 06:32:18.2 +24:31:59
Equinox of date position of star is 06:33:32.5 +24:31:01
Stellar brightness G=14.9,
use SENSEUP=128
Star is 169 degrees from the moon.
Moon is 56% illuminated.
TNO apparent brightness V=26.4
TNO is 42.1 AU from the Sun
and 42.4 AU from the Earth.
The TNO is moving 13.0
km/sec on the sky relative to the star, or,
1.5 arcsec/hr.
The 1-sigma error in the time of the event is 981 seconds.
The 1-sigma cross-track error in the shadow position is
5343 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=154.9 km assuming a 5% albedo -- 4.6 sec chord
Diameter=63.2 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CLASSICAL
Star training set for 02WL21, (2020/04/14 09:42UT) Object RA Dec mag sep mel Pollux 07:46:33.3 +27:58:32 1.1 16.71 173 Alhena 06:38:53.0 +16:22:49 1.9 8.23 168 PPM 096264 06:38:41.9 +24:34:20 6.5 1.17 170 PPM 096094 06:32:05.5 +24:22:07 9.4 0.36 169 PPM 096139 06:34:15.7 +24:16:24 10.7 0.29 169 02WL21 06:33:32.8 +24:31:01 14.9 169 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 02WL21, (2020/04/14 09:42UT) Object RA Dec mag sep mel Pollux 07:45:18.0 +28:01:33 1.1 16.71 173 Alhena 06:37:42.8 +16:23:57 1.9 8.23 168 PPM 096264 06:37:27.2 +24:35:27 6.5 1.17 170 PPM 096094 06:30:50.9 +24:23:03 9.4 0.36 169 PPM 096139 06:33:01.2 +24:17:23 10.7 0.29 169 02WL21 06:32:18.2 +24:31:59 14.9 169 Positions are for J2000
Event circumstances last updated at 2020/03/08 20:26:34 UT
Marc W. Buie, Southwest Research Institute