Event between (342842) 08YB3 and star UC4-805-032025 with event index number of 118895
Geocentric closest approach at 2018/05/15 13:24:52 UTC
J2000 position of star is 21:39:48.0 +70:56:22
Equinox of date position of star is 21:40:03.3 +71:01:16
Stellar brightness R=16.3,
use SENSEUP=128
Star is 76 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=20.4
TNO is 11.7 AU from the Sun
and 12.0 AU from the Earth.
The TNO is moving 22.9
km/sec on the sky relative to the star, or,
9.5 arcsec/hr.
The 1-sigma error in the time of the event is 41 seconds.
The 1-sigma cross-track error in the shadow position is
684 km.
The TNO has an absolute magnitude Hv=9.3
Diameter=83.2 km assuming a 5% albedo -- 3.6 sec chord
Diameter=34.0 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
Star training set for 342842, (2018/05/15 13:25UT) Object RA Dec mag sep mel Deneb 20:42:03.5 +45:20:48 1.3 26.62 89 Alderamin 21:19:01.0 +62:39:50 2.4 8.60 79 11 Cep 21:42:11.0 +71:23:47 4.6 0.41 76 PPM 010921 21:39:25.1 +71:23:31 7.8 0.37 76 PPM 010927 21:40:48.2 +70:52:12 8.6 0.16 76 342842 21:40:03.7 +71:01:24 16.3 76 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, (2018/05/15 13:25UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 26.62 89 Alderamin 21:18:35.2 +62:35:09 2.4 8.60 79 11 Cep 21:41:55.7 +71:18:43 4.6 0.41 76 PPM 010921 21:39:10.5 +71:18:30 7.8 0.37 76 PPM 010927 21:40:32.0 +70:47:10 8.6 0.16 76 342842 21:39:48.0 +70:56:22 16.3 76 Positions are for J2000
Event circumstances last updated at 2017/12/02 17:32:42 UT
Marc W. Buie, Southwest Research Institute