Event between 13CE223 and star GA0840:04091722 with event index number of 2047311
Geocentric closest approach at 2021/11/23 21:44:19 UTC
J2000 position of star is 11:56:47.6 -05:10:17
Equinox of date position of star is 11:57:54.5 -05:17:33
Stellar brightness G=13.3,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 71 degrees from the moon.
Moon is 83% illuminated.
TNO apparent brightness V=22.8
TNO is 24.2 AU from the Sun
and 24.7 AU from the Earth.
The TNO is moving 20.5
km/sec on the sky relative to the star, or,
4.1 arcsec/hr.
The 1-sigma error in the time of the event is 105 seconds.
The 1-sigma cross-track error in the shadow position is
1445 km.
The TNO has an absolute magnitude Hv=8.7
Diameter=106.2 km assuming a 5% albedo -- 5.3 sec chord
Diameter=43.3 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
Star training set for 13CE223, (2021/11/23 21:44UT) Object RA Dec mag sep mel Spica 13:26:21.0 -11:16:30 1.0 22.67 93 4Gam Crv 12:16:56.1 -17:39:48 2.6 13.22 81 PPM 194890 11:52:09.5 -05:27:19 5.6 1.44 70 PPM 194969 11:56:33.7 -05:15:24 7.6 0.34 71 PPM 194983 11:57:36.3 -05:14:45 9.8 0.09 71 13CE223 11:57:54.9 -05:17:35 13.3 71 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 13CE223, (2021/11/23 21:44UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 22.67 93 4Gam Crv 12:15:48.1 -17:32:30 2.6 13.22 81 PPM 194890 11:51:02.2 -05:20:00 5.6 1.44 70 PPM 194969 11:55:26.4 -05:08:05 7.6 0.34 71 PPM 194983 11:56:29.0 -05:07:26 9.8 0.09 71 13CE223 11:56:47.6 -05:10:17 13.3 71 Positions are for J2000
Event circumstances last updated at 2021/10/04 01:48:26 UT
Marc W. Buie, Southwest Research Institute