Event between 09DL143 and star GA0920:03790860 with event index number of 2034350
Geocentric closest approach at 2024/05/04 11:41:12 UTC
J2000 position of star is 13:32:29.6 +02:26:13
Equinox of date position of star is 13:33:37.8 +02:19:22
Stellar brightness G=11.8,
use SENSEUP=8 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 153 degrees from the moon.
Moon is 18% illuminated.
TNO apparent brightness V=24.0
TNO is 44.7 AU from the Sun
and 43.8 AU from the Earth.
The TNO is moving 23.0
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 176 seconds.
The 1-sigma cross-track error in the shadow position is
2313 km.
The TNO has an absolute magnitude Hv=7.5
Diameter=193.2 km assuming a 5% albedo -- 8.4 sec chord
Diameter=78.9 km assuming a 30% albedo -- 3.4 sec chord
Dynamical classification is CLASSICAL
Star training set for 09DL143, (2024/05/04 11:41UT) Object RA Dec mag sep mel Spica 13:26:28.7 -11:17:15 1.0 13.72 150 Vindemiatrix 13:03:23.4 +10:49:44 2.8 11.37 159 78 Vir 13:35:22.0 +03:32:05 4.9 1.29 152 PPM 159777 13:29:30.8 +02:06:37 7.8 1.07 154 PPM 159843 13:33:26.6 +02:28:44 11.0 0.18 153 09DL143 13:33:43.9 +02:18:45 11.8 152 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 09DL143, (2024/05/04 11:41UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 13.72 150 Vindemiatrix 13:02:10.2 +10:57:33 2.8 11.37 159 78 Vir 13:34:08.0 +03:39:32 4.9 1.29 152 PPM 159777 13:28:16.4 +02:14:09 7.8 1.07 154 PPM 159843 13:32:12.4 +02:36:12 11.0 0.18 153 09DL143 13:32:29.6 +02:26:13 11.8 153 Positions are for J2000
Event circumstances last updated at 2022/05/03 02:10:01 UT
Marc W. Buie, Southwest Research Institute