Event between 12YF12 and star GA0880:01107722 with event index number of 2036748
Geocentric closest approach at 2023/03/02 22:14:22 UTC
J2000 position of star is 06:15:59.2 -01:12:45
Equinox of date position of star is 06:17:06.1 -01:13:17
Stellar brightness G=12.5,
use SENSEUP=16 with the MallinCam and and exposure
time of 250 milli-seconds with the QHY174 camera.
Star is 34 degrees from the moon.
Moon is 82% illuminated.
TNO apparent brightness V=22.3
TNO is 41.1 AU from the Sun
and 40.8 AU from the Earth.
The TNO is moving 14.6
km/sec on the sky relative to the star, or,
1.8 arcsec/hr.
The 1-sigma error in the time of the event is 196 seconds.
The 1-sigma cross-track error in the shadow position is
3404 km.
The TNO has an absolute magnitude Hv=6.0
Diameter=375.0 km assuming a 5% albedo -- 25.7 sec chord
Diameter=153.1 km assuming a 30% albedo -- 10.5 sec chord
Dynamical classification is SCATEXTD
Star training set for 12YF12, (2023/03/02 22:14UT) Object RA Dec mag sep mel Betelgeuse 05:56:25.6 +07:24:34 0.4 10.06 31 Saiph 05:48:51.4 -09:39:47 2.1 10.99 45 PPM 176187 06:16:45.0 -00:31:22 6.2 0.71 33 PPM 176186 06:16:37.3 -01:24:32 8.2 0.23 34 PPM 176188 06:16:50.2 -01:15:25 9.0 0.09 34 12YF12 06:17:09.8 -01:13:19 12.5 34 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 12YF12, (2023/03/02 22:14UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 10.06 31 Saiph 05:47:45.4 -09:40:11 2.1 10.99 45 PPM 176187 06:15:34.0 -00:30:49 6.2 0.71 33 PPM 176186 06:15:26.8 -01:24:00 8.2 0.23 34 PPM 176188 06:15:39.7 -01:14:52 9.0 0.09 34 12YF12 06:15:59.2 -01:12:45 12.5 34 Positions are for J2000
Event circumstances last updated at 2021/12/18 01:59:16 UT
Marc W. Buie, Southwest Research Institute