Event between (506439) 00YB2 and star GA1100:01570908 with event index number of 2258008
Geocentric closest approach at 2021/11/08 22:15:47 UTC
J2000 position of star is 05:55:02.4 +20:33:01
Equinox of date position of star is 05:56:20.3 +20:33:09
Stellar brightness G=15.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 165 degrees from the moon.
Moon is 22% illuminated.
TNO apparent brightness V=22.7
TNO is 39.1 AU from the Sun
and 38.3 AU from the Earth.
The TNO is moving 17.8
km/sec on the sky relative to the star, or,
2.3 arcsec/hr.
The 1-sigma error in the time of the event is 504 seconds.
The 1-sigma cross-track error in the shadow position is
2095 km.
The TNO has an absolute magnitude Hv=6.7
Diameter=275.4 km assuming a 5% albedo -- 15.5 sec chord
Diameter=112.4 km assuming a 30% albedo -- 6.3 sec chord
Dynamical classification is CLASSICAL
Star training set for 506439, (2021/11/08 22:16UT) Object RA Dec mag sep mel Betelgeuse 05:56:21.3 +07:24:34 0.4 13.14 156 Alnath 05:27:40.5 +28:37:26 1.6 10.37 160 54Chi1Ori 05:55:40.7 +20:16:42 5.1 0.32 164 PPM 095075 05:56:32.7 +21:04:46 8.5 0.53 165 PPM 095074 05:56:32.0 +20:27:14 8.7 0.11 165 506439 05:56:20.6 +20:33:09 15.5 165 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 506439, (2021/11/08 22:16UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 13.14 156 Alnath 05:26:17.6 +28:36:23 1.6 10.37 160 54Chi1Ori 05:54:22.7 +20:16:32 5.1 0.32 164 PPM 095075 05:55:14.3 +21:04:38 8.5 0.53 165 PPM 095074 05:55:13.9 +20:27:07 8.7 0.11 165 506439 05:55:02.4 +20:33:01 15.5 165 Positions are for J2000
Event circumstances last updated at 2021/10/11 01:42:33 UT
Marc W. Buie, Southwest Research Institute