Event between 09DJ143 and star GA0940:03849948 with event index number of 1088705
Geocentric closest approach at 2021/04/06 19:13:50 UTC
J2000 position of star is 13:58:10.6 +05:18:41
Equinox of date position of star is 13:59:14.7 +05:12:31
Stellar brightness G=16.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 111 degrees from the moon.
Moon is 26% illuminated.
TNO apparent brightness V=22.7
TNO is 38.1 AU from the Sun
and 37.1 AU from the Earth.
The TNO is moving 23.8
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 107 seconds.
The 1-sigma cross-track error in the shadow position is
1738 km.
The TNO has an absolute magnitude Hv=6.9
Diameter=255.9 km assuming a 5% albedo -- 10.8 sec chord
Diameter=104.5 km assuming a 30% albedo -- 4.4 sec chord
Dynamical classification is 13:4EEEEEEEEE
Star training set for 09DJ143, (2021/04/06 19:14UT) Object RA Dec mag sep mel Arcturus 14:16:37.9 +19:04:21 0.0 14.50 111 Vindemiatrix 13:03:14.1 +10:50:43 2.8 14.96 126 PPM 160305 14:04:59.9 +04:47:59 6.2 1.49 110 PPM 160201 13:59:00.9 +05:00:53 8.3 0.20 111 09DJ143 13:59:14.7 +05:12:31 16.3 111 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 09DJ143, (2021/04/06 19:14UT) Object RA Dec mag sep mel Arcturus 14:15:38.1 +19:10:15 0.0 14.50 111 Vindemiatrix 13:02:10.2 +10:57:33 2.8 14.96 126 PPM 160305 14:03:55.7 +04:54:03 6.2 1.49 110 PPM 160201 13:57:56.8 +05:07:04 8.3 0.20 111 09DJ143 13:58:10.6 +05:18:41 16.3 111 Positions are for J2000
Event circumstances last updated at 2021/04/05 23:45:30 UT
Marc W. Buie, Southwest Research Institute