Event between (312645) 10EP65 and star GA0780:04512715 with event index number of 2295152
Geocentric closest approach at 2023/03/23 18:43:21 UTC
J2000 position of star is 14:14:04.0 -10:12:15
Equinox of date position of star is 14:15:17.0 -10:18:35
Stellar brightness G=13.5,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 175 degrees from the moon.
Moon is 6% illuminated.
TNO apparent brightness V=20.8
TNO is 33.4 AU from the Sun
and 32.5 AU from the Earth.
The TNO is moving 19.7
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 74 seconds.
The 1-sigma cross-track error in the shadow position is
1216 km.
The TNO has an absolute magnitude Hv=5.5
Diameter=478.6 km assuming a 5% albedo -- 24.5 sec chord
Diameter=195.4 km assuming a 30% albedo -- 10.0 sec chord
Dynamical classification is 2:1E
Star training set for 312645, (2023/03/23 18:43UT) Object RA Dec mag sep mel Spica 13:26:25.2 -11:16:55 1.0 12.04 173 98Kap Vir 14:14:08.3 -10:22:51 4.2 0.30 175 PPM 197311 14:13:47.9 -10:00:30 7.6 0.48 175 PPM 228488 14:15:23.0 -10:22:12 9.6 0.06 175 312645 14:15:18.5 -10:18:43 13.5 174 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 312645, (2023/03/23 18:43UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 12.04 173 98Kap Vir 14:12:53.8 -10:16:22 4.2 0.30 175 PPM 197311 14:12:33.5 -09:54:01 7.6 0.48 175 PPM 228488 14:14:08.4 -10:15:45 9.6 0.06 175 312645 14:14:04.0 -10:12:15 13.5 175 Positions are for J2000
Event circumstances last updated at 2022/09/29 04:14:38 UT
Marc W. Buie, Southwest Research Institute