Event between 14DR143 and star UC4-451-053873 with event index number of 309652
Geocentric closest approach at 2020/04/30 15:28:16 UTC
J2000 position of star is 12:49:59.3 +00:00:23
Equinox of date position of star is 12:50:58.0 -00:05:50
Stellar brightness R=15.6,
use SENSEUP=128
Star is 63 degrees from the moon.
Moon is 48% illuminated.
TNO apparent brightness V=22.7
TNO is 48.9 AU from the Sun
and 48.0 AU from the Earth.
The TNO is moving 22.5
km/sec on the sky relative to the star, or,
2.3 arcsec/hr.
The 1-sigma error in the time of the event is 110 seconds.
The 1-sigma cross-track error in the shadow position is
2205 km.
The TNO has an absolute magnitude Hv=5.8
Diameter=420.7 km assuming a 5% albedo -- 18.7 sec chord
Diameter=171.8 km assuming a 30% albedo -- 7.6 sec chord
Dynamical classification is 3:2E
Star training set for 14DR143, (2020/04/30 15:28UT) Object RA Dec mag sep mel Spica 13:26:16.0 -11:16:01 1.0 14.18 76 Vindemiatrix 13:03:11.4 +10:51:01 2.8 11.36 62 35 Vir 12:48:53.6 +03:27:43 6.4 3.61 61 PPM 159252 12:52:54.6 -00:01:32 8.0 0.48 64 PPM 159211 12:50:49.9 +00:05:31 10.9 0.20 63 14DR143 12:51:01.8 -00:06:14 15.6 64 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 14DR143, (2020/04/30 15:28UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 14.18 76 Vindemiatrix 13:02:10.3 +10:57:33 2.8 11.36 62 35 Vir 12:47:51.4 +03:34:22 6.4 3.61 61 PPM 159252 12:51:52.1 +00:05:05 8.0 0.48 64 PPM 159211 12:49:47.4 +00:12:08 10.9 0.20 63 14DR143 12:49:59.3 +00:00:23 15.6 63 Positions are for J2000
Event circumstances last updated at 2019/02/01 22:31:00 UT
Marc W. Buie, Southwest Research Institute