Event between (506439) 00YB2 and star GA1100:01473820 with event index number of 2258026
Geocentric closest approach at 2022/01/05 18:31:18 UTC
J2000 position of star is 05:50:00.0 +20:31:49
Equinox of date position of star is 05:51:18.4 +20:32:07
Stellar brightness G=15.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 121 degrees from the moon.
Moon is 13% illuminated.
TNO apparent brightness V=22.6
TNO is 39.1 AU from the Sun
and 38.1 AU from the Earth.
The TNO is moving 24.2
km/sec on the sky relative to the star, or,
3.1 arcsec/hr.
The 1-sigma error in the time of the event is 319 seconds.
The 1-sigma cross-track error in the shadow position is
2036 km.
The TNO has an absolute magnitude Hv=6.7
Diameter=275.4 km assuming a 5% albedo -- 11.4 sec chord
Diameter=112.4 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is CLASSICAL
Star training set for 506439, (2022/01/05 18:31UT) Object RA Dec mag sep mel Betelgeuse 05:56:21.9 +07:24:34 0.4 13.18 119 Alnath 05:27:41.1 +28:37:26 1.6 9.71 116 PPM 121513 05:53:41.7 +19:52:18 6.4 0.87 121 PPM 095000 05:53:42.1 +20:42:00 8.2 0.58 121 PPM 094952 05:51:48.3 +20:26:56 8.9 0.14 121 PPM 094945 05:51:14.8 +20:40:03 10.3 0.13 121 506439 05:51:18.7 +20:32:07 15.5 121 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, (2022/01/05 18:31UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 13.18 119 Alnath 05:26:17.6 +28:36:23 1.6 9.71 116 PPM 121513 05:52:23.4 +19:52:04 6.4 0.87 121 PPM 095000 05:52:23.3 +20:41:46 8.2 0.58 121 PPM 094952 05:50:29.7 +20:26:39 8.9 0.14 121 PPM 094945 05:49:56.0 +20:39:45 10.3 0.13 121 506439 05:50:00.0 +20:31:49 15.5 121 Positions are for J2000
Event circumstances last updated at 2021/12/06 01:45:27 UT
Marc W. Buie, Southwest Research Institute