Event between 12YF12 and star GA0880:01238590 with event index number of 2036719
Geocentric closest approach at 2022/11/23 16:10:00 UTC
J2000 position of star is 06:22:43.3 -01:37:07
Equinox of date position of star is 06:23:50.0 -01:37:51
Stellar brightness G=15.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 134 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=22.2
TNO is 41.1 AU from the Sun
and 40.4 AU from the Earth.
The TNO is moving 21.1
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 193 seconds.
The 1-sigma cross-track error in the shadow position is
2281 km.
The TNO has an absolute magnitude Hv=6.0
Diameter=375.0 km assuming a 5% albedo -- 17.8 sec chord
Diameter=153.1 km assuming a 30% albedo -- 7.2 sec chord
Dynamical classification is SCATEXTD
Star training set for 12YF12, (2022/11/23 16:03UT) Object RA Dec mag sep mel Betelgeuse 05:56:24.7 +07:24:34 0.4 11.34 145 Saiph 05:48:50.6 -09:39:47 2.1 11.85 136 PPM 176254 06:26:26.8 -00:57:42 6.5 0.93 134 PPM 176252 06:25:43.6 -01:25:57 6.7 0.50 134 PPM 176238 06:24:19.7 -01:37:16 9.5 0.11 134 12YF12 06:23:52.9 -01:37:53 15.4 134 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, (2022/11/23 16:03UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 11.34 145 Saiph 05:47:45.4 -09:40:11 2.1 11.85 136 PPM 176254 06:25:16.9 -00:56:50 6.5 0.93 134 PPM 176252 06:24:34.0 -01:25:07 6.7 0.50 134 PPM 176238 06:23:10.1 -01:36:28 9.5 0.11 134 12YF12 06:22:43.3 -01:37:07 15.4 134 Positions are for J2000
Event circumstances last updated at 2021/12/18 01:50:46 UT
Marc W. Buie, Southwest Research Institute