Event between 13NU33 and star GA0820:22316123 with event index number of 2070108
Geocentric closest approach at 2022/09/12 22:53:19 UTC
J2000 position of star is 22:21:29.1 -06:28:35
Equinox of date position of star is 22:22:37.7 -06:21:57
Stellar brightness G=12.8,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 48 degrees from the moon.
Moon is 92% illuminated.
TNO apparent brightness V=22.6
TNO is 33.0 AU from the Sun
and 32.1 AU from the Earth.
The TNO is moving 22.6
km/sec on the sky relative to the star, or,
3.5 arcsec/hr.
The 1-sigma error in the time of the event is 83 seconds.
The 1-sigma cross-track error in the shadow position is
1820 km.
The TNO has an absolute magnitude Hv=7.4
Diameter=200.5 km assuming a 5% albedo -- 8.9 sec chord
Diameter=81.8 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is SCATNEAR
Star training set for 13NU33, (2022/09/12 22:52UT) Object RA Dec mag sep mel Fomalhaut 22:58:54.0 -29:30:05 1.2 24.66 51 Markab 23:05:53.6 +15:19:40 2.5 24.19 36 PPM 206307 22:24:43.5 -07:04:44 5.9 0.88 48 PPM 206268 22:22:35.1 -06:07:42 8.0 0.23 48 PPM 206264 22:22:23.7 -06:19:20 9.1 0.08 48 13NU33 22:22:40.4 -06:21:41 12.8 48 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 13NU33, (2022/09/12 22:52UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 24.66 51 Markab 23:04:45.8 +15:12:18 2.5 24.19 36 PPM 206307 22:23:32.1 -07:11:40 5.9 0.88 48 PPM 206268 22:21:23.9 -06:14:36 8.0 0.23 48 PPM 206264 22:21:12.5 -06:26:14 9.1 0.08 48 13NU33 22:21:29.1 -06:28:35 12.8 48 Positions are for J2000
Event circumstances last updated at 2021/11/09 00:06:50 UT
Marc W. Buie, Southwest Research Institute