Event between (230965) 04XA192 and star GA1380:04099066 with event index number of 177109
Geocentric closest approach at 2019/01/16 17:03:14 UTC
J2000 position of star is 07:37:14.0 +49:55:28
Equinox of date position of star is 07:38:39.5 +49:52:51
Stellar brightness G=14.6,
use SENSEUP=128
Star is 60 degrees from the moon.
Moon is 74% illuminated.
TNO apparent brightness V=19.7
TNO is 35.5 AU from the Sun
and 34.6 AU from the Earth.
The TNO is moving 25.4
km/sec on the sky relative to the star, or,
3.6 arcsec/hr.
The 1-sigma error in the time of the event is 142 seconds.
The 1-sigma cross-track error in the shadow position is
2890 km.
The TNO has an absolute magnitude Hv=4.2
Diameter=871.0 km assuming a 5% albedo -- 34.2 sec chord
Diameter=355.6 km assuming a 30% albedo -- 14.0 sec chord
Dynamical classification is SCATEXTD
Star training set for 230965, (2019/01/16 17:03UT) Object RA Dec mag sep mel Pollux 07:46:28.7 +27:58:43 1.1 21.95 59 34Bet Aur 06:00:55.6 +44:56:50 1.9 17.17 43 PPM 050006 07:39:18.6 +48:43:46 6.0 1.16 60 PPM 031172 07:33:21.4 +50:06:32 8.0 0.88 59 PPM 050015 07:39:47.2 +49:35:04 9.7 0.35 60 PPM 031224 07:39:07.8 +50:06:48 11.4 0.24 60 230965 07:38:40.1 +49:52:50 14.6 60 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 230965, (2019/01/16 17:03UT) Object RA Dec mag sep mel Pollux 07:45:18.0 +28:01:33 1.1 21.95 59 34Bet Aur 05:59:31.6 +44:56:51 1.9 17.17 43 PPM 050006 07:37:53.6 +48:46:25 6.0 1.16 60 PPM 031172 07:31:54.8 +50:09:02 8.0 0.88 59 PPM 050015 07:38:21.5 +49:37:44 9.7 0.35 60 PPM 031224 07:37:41.6 +50:09:27 11.4 0.24 60 230965 07:37:14.0 +49:55:28 14.6 60 Positions are for J2000
Event circumstances last updated at 2018/12/04 05:09:28 UT
Marc W. Buie, Southwest Research Institute