Event between 09DR143 and star GA0880:04174591 with event index number of 2034548
Geocentric closest approach at 2024/04/16 21:23:14 UTC
J2000 position of star is 13:31:39.1 -00:20:51
Equinox of date position of star is 13:32:46.3 -00:27:33
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 71 degrees from the moon.
Moon is 61% illuminated.
TNO apparent brightness V=23.9
TNO is 44.7 AU from the Sun
and 43.8 AU from the Earth.
The TNO is moving 25.1
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 167 seconds.
The 1-sigma cross-track error in the shadow position is
3243 km.
The TNO has an absolute magnitude Hv=7.4
Diameter=174.6 km assuming a 5% albedo -- 7.8 sec chord
Diameter=71.3 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is CLASSICAL
Star training set for 09DR143, (2024/04/16 21:23UT) Object RA Dec mag sep mel Spica 13:26:28.6 -11:17:14 1.0 10.93 74 79Zet Vir 13:35:56.0 -00:43:10 3.4 0.80 72 PPM 179080 13:35:30.8 -00:26:15 7.8 0.65 72 PPM 179070 13:33:21.3 -00:20:51 10.7 0.17 71 09DR143 13:32:53.9 -00:28:19 16.6 72 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 09DR143, (2024/04/16 21:23UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 10.93 74 79Zet Vir 13:34:41.2 -00:35:44 3.4 0.80 72 PPM 179080 13:34:16.0 -00:18:50 7.8 0.65 72 PPM 179070 13:32:06.6 -00:13:24 10.7 0.17 71 09DR143 13:31:39.1 -00:20:51 16.6 71 Positions are for J2000
Event circumstances last updated at 2021/10/25 00:03:52 UT
Marc W. Buie, Southwest Research Institute