Event between (342842) 08YB3 and star GA1380:06116020 with event index number of 1034846
Geocentric closest approach at 2021/01/08 09:09:53 UTC
J2000 position of star is 20:07:33.4 +48:21:12
Equinox of date position of star is 20:08:11.1 +48:24:55
Stellar brightness G=13.3,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 93 degrees from the moon.
Moon is 28% illuminated.
TNO apparent brightness V=21.0
TNO is 13.6 AU from the Sun
and 13.9 AU from the Earth.
The TNO is moving 29.9
km/sec on the sky relative to the star, or,
10.7 arcsec/hr.
The 1-sigma error in the time of the event is 17 seconds.
The 1-sigma cross-track error in the shadow position is
504 km.
The TNO has an absolute magnitude Hv=9.3
Diameter=83.2 km assuming a 5% albedo -- 2.8 sec chord
Diameter=34.0 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURR
Star training set for 342842, (2021/01/08 09:10UT) Object RA Dec mag sep mel Deneb 20:42:09.0 +45:21:23 1.3 6.55 98 PPM 059266 20:05:06.5 +48:17:25 6.2 0.53 92 PPM 059341 20:07:56.2 +48:15:09 8.1 0.17 93 PPM 059353 20:08:18.9 +48:32:04 10.4 0.12 93 342842 20:08:11.2 +48:24:55 13.3 93 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, (2021/01/08 09:10UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 6.55 98 PPM 059266 20:04:28.8 +48:13:47 6.2 0.53 92 PPM 059341 20:07:18.3 +48:11:26 8.1 0.17 93 PPM 059353 20:07:41.2 +48:28:21 10.4 0.12 93 342842 20:07:33.4 +48:21:12 13.3 93 Positions are for J2000
Event circumstances last updated at 2020/12/21 23:29:44 UT
Marc W. Buie, Southwest Research Institute