Event between 09DJ143 and star GA0940:03852310 with event index number of 1024014
Geocentric closest approach at 2020/12/22 04:07:26 UTC
J2000 position of star is 13:59:25.6 +04:29:12
Equinox of date position of star is 14:00:29.0 +04:23:09
Stellar brightness G=15.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 155 degrees from the moon.
Moon is 52% illuminated.
TNO apparent brightness V=22.9
TNO is 38.1 AU from the Sun
and 38.5 AU from the Earth.
The TNO is moving 20.4
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 69 seconds.
The 1-sigma cross-track error in the shadow position is
1397 km.
The TNO has an absolute magnitude Hv=6.9
Diameter=255.9 km assuming a 5% albedo -- 12.6 sec chord
Diameter=104.5 km assuming a 30% albedo -- 5.1 sec chord
Dynamical classification is 13:4EEEEEEEEE
Star training set for 09DJ143, (2020/12/22 04:07UT) Object RA Dec mag sep mel Arcturus 14:16:37.1 +19:04:26 0.0 15.21 147 Vindemiatrix 13:03:13.3 +10:50:49 2.8 15.58 167 PPM 160305 14:04:59.0 +04:48:03 6.2 1.20 154 PPM 160260 14:02:37.9 +04:09:08 7.5 0.58 154 PPM 160230 14:00:55.6 +04:28:23 9.5 0.14 155 09DJ143 14:00:29.1 +04:23:08 15.4 155 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, (2020/12/22 04:07UT) Object RA Dec mag sep mel Arcturus 14:15:38.1 +19:10:15 0.0 15.21 147 Vindemiatrix 13:02:10.2 +10:57:33 2.8 15.58 167 PPM 160305 14:03:55.7 +04:54:03 6.2 1.20 154 PPM 160260 14:01:34.5 +04:15:11 7.5 0.58 154 PPM 160230 13:59:52.2 +04:34:27 9.5 0.14 155 09DJ143 13:59:25.6 +04:29:12 15.4 155 Positions are for J2000
Event circumstances last updated at 2020/12/14 19:09:40 UT
Marc W. Buie, Southwest Research Institute