Event between (342842) 08YB3 and star GA1280:06695594 with event index number of 2201780
Geocentric closest approach at 2022/12/15 23:08:25 UTC
J2000 position of star is 19:53:38.8 +38:44:35
Equinox of date position of star is 19:54:25.5 +38:48:04
Stellar brightness G=16.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 112 degrees from the moon.
Moon is 54% illuminated.
TNO apparent brightness V=21.4
TNO is 14.7 AU from the Sun
and 15.0 AU from the Earth.
The TNO is moving 30.2
km/sec on the sky relative to the star, or,
10.0 arcsec/hr.
The 1-sigma error in the time of the event is 30 seconds.
The 1-sigma cross-track error in the shadow position is
1055 km.
The TNO has an absolute magnitude Hv=9.3
Diameter=83.2 km assuming a 5% albedo -- 2.7 sec chord
Diameter=34.0 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURR
Star training set for 342842, (2022/12/15 23:09UT) Object RA Dec mag sep mel Deneb 20:42:12.9 +45:21:48 1.3 11.00 115 37Gam Cyg 20:23:03.2 +40:19:52 2.2 5.72 116 22 Cyg 19:56:41.0 +38:32:55 4.7 0.50 112 PPM 083755 19:53:50.4 +38:50:10 8.0 0.13 112 342842 19:54:27.8 +38:48:15 16.1 112 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 342842, (2022/12/15 23:09UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 11.00 115 37Gam Cyg 20:22:13.7 +40:15:24 2.2 5.72 116 22 Cyg 19:55:51.8 +38:29:12 4.7 0.50 112 PPM 083755 19:53:01.5 +38:46:31 8.0 0.13 112 342842 19:53:38.8 +38:44:35 16.1 112 Positions are for J2000
Event circumstances last updated at 2021/11/15 00:52:08 UT
Marc W. Buie, Southwest Research Institute