Event between 13CE223 and star GA0860:03991208 with event index number of 1116052
Geocentric closest approach at 2021/04/09 18:18:06 UTC
J2000 position of star is 11:38:52.8 -03:34:11
Equinox of date position of star is 11:39:57.4 -03:41:11
Stellar brightness G=14.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 169 degrees from the moon.
Moon is 5% illuminated.
TNO apparent brightness V=22.7
TNO is 24.1 AU from the Sun
and 23.2 AU from the Earth.
The TNO is moving 21.9
km/sec on the sky relative to the star, or,
4.7 arcsec/hr.
The 1-sigma error in the time of the event is 70 seconds.
The 1-sigma cross-track error in the shadow position is
1148 km.
The TNO has an absolute magnitude Hv=8.8
Diameter=106.2 km assuming a 5% albedo -- 4.9 sec chord
Diameter=43.3 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is CENTAURR
Star training set for 13CE223, (2021/04/09 18:18UT) Object RA Dec mag sep mel Regulus 10:09:30.2 +11:51:45 1.3 27.34 156 4Gam Crv 12:16:54.2 -17:39:36 2.6 16.65 154 PPM 194612 11:36:04.0 -04:28:45 6.4 1.25 168 PPM 194679 11:40:24.5 -04:15:20 8.5 0.58 169 PPM 194685 11:40:42.8 -03:37:57 9.7 0.19 169 13CE223 11:39:58.0 -03:41:15 14.7 169 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, (2021/04/09 18:18UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 27.34 156 4Gam Crv 12:15:48.1 -17:32:30 2.6 16.65 154 PPM 194612 11:34:58.8 -04:21:42 6.4 1.25 168 PPM 194679 11:39:19.3 -04:08:15 8.5 0.58 169 PPM 194685 11:39:37.5 -03:30:53 9.7 0.19 169 13CE223 11:38:52.8 -03:34:11 14.7 169 Positions are for J2000
Event circumstances last updated at 2021/01/19 21:56:32 UT
Marc W. Buie, Southwest Research Institute