Event between 14DT143 and star UC4-391-062263 with event index number of 310637
Geocentric closest approach at 2020/04/14 23:31:08 UTC
J2000 position of star is 14:52:57.6 -11:58:55
Equinox of date position of star is 14:54:00.7 -12:03:36
Stellar brightness R=16.3,
use SENSEUP=128
Star is 72 degrees from the moon.
Moon is 50% illuminated.
TNO apparent brightness V=22.5
TNO is 36.0 AU from the Sun
and 35.0 AU from the Earth.
The TNO is moving 22.4
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 135 seconds.
The 1-sigma cross-track error in the shadow position is
1672 km.
The TNO has an absolute magnitude Hv=6.9
Diameter=247.8 km assuming a 5% albedo -- 11.1 sec chord
Diameter=101.1 km assuming a 30% albedo -- 4.5 sec chord
Dynamical classification is SCATNEAR
Star training set for 14DT143, (2020/04/14 23:31UT) Object RA Dec mag sep mel Spica 13:26:15.9 -11:16:00 1.0 21.51 92 27Bet Lib 15:18:06.1 -09:27:24 2.6 6.45 67 13Xi 1Lib 14:55:29.2 -11:58:48 5.9 0.36 71 PPM 229436 14:53:59.4 -12:27:57 7.9 0.40 71 PPM 229443 14:54:24.4 -12:18:43 8.8 0.26 71 14DT143 14:54:03.9 -12:03:51 16.3 71 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 14DT143, (2020/04/14 23:31UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 21.51 92 27Bet Lib 15:17:00.3 -09:22:59 2.6 6.45 67 13Xi 1Lib 14:54:22.8 -11:53:54 5.9 0.36 71 PPM 229436 14:52:52.9 -12:23:02 7.9 0.40 71 PPM 229443 14:53:18.0 -12:13:48 8.8 0.26 71 14DT143 14:52:57.6 -11:58:55 16.3 72 Positions are for J2000
Event circumstances last updated at 2019/04/25 23:26:16 UT
Marc W. Buie, Southwest Research Institute