Event between (386723) 09YE7 and star GA0840:00462157 with event index number of 2292174
Geocentric closest approach at 2022/08/04 19:50:06 UTC
J2000 position of star is 04:51:51.2 -05:18:48
Equinox of date position of star is 04:52:56.4 -05:16:40
Stellar brightness G=16.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 136 degrees from the moon.
Moon is 43% illuminated.
TNO apparent brightness V=21.9
TNO is 50.7 AU from the Sun
and 51.1 AU from the Earth.
The TNO is moving 21.0
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 136 seconds.
The 1-sigma cross-track error in the shadow position is
2205 km.
The TNO has an absolute magnitude Hv=4.7
Diameter=701.5 km assuming a 5% albedo -- 33.4 sec chord
Diameter=286.4 km assuming a 30% albedo -- 13.6 sec chord
Dynamical classification is SCATEXTD
Star training set for 386723, (2022/08/04 19:46UT) Object RA Dec mag sep mel Rigel 05:15:37.5 -08:10:38 0.1 6.33 130 67Bet Eri 05:08:57.7 -05:03:32 2.8 3.99 133 61Ome Eri 04:54:00.4 -05:24:59 4.5 0.29 136 PPM 187431 04:53:52.9 -05:15:01 8.0 0.23 136 386723 04:52:58.0 -05:16:37 16.0 136 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 386723, (2022/08/04 19:46UT) Object RA Dec mag sep mel Rigel 05:14:32.3 -08:12:06 0.1 6.33 130 67Bet Eri 05:07:50.8 -05:05:13 2.8 3.99 133 61Ome Eri 04:52:53.7 -05:27:09 4.5 0.29 136 PPM 187431 04:52:46.1 -05:17:11 8.0 0.23 136 386723 04:51:51.2 -05:18:48 16.0 136 Positions are for J2000
Event circumstances last updated at 2022/01/10 00:03:28 UT
Marc W. Buie, Southwest Research Institute