Event between 14XS40 and star UC4-427-046380 with event index number of 185420
Geocentric closest approach at 2017/04/20 02:16:15 UTC
J2000 position of star is 08:35:31.3 -04:42:13
Equinox of date position of star is 08:36:23.1 -04:45:51
Stellar brightness R=14.9,
use SENSEUP=128
Star is 159 degrees from the moon.
Moon is 43% illuminated.
TNO apparent brightness V=21.1
TNO is 36.7 AU from the Sun
and 36.5 AU from the Earth.
The TNO is moving 12.6
km/sec on the sky relative to the star, or,
1.7 arcsec/hr.
The 1-sigma error in the time of the event is 134 seconds.
The 1-sigma cross-track error in the shadow position is
4647 km.
The TNO has an absolute magnitude Hv=5.3
Diameter=522.4 km assuming a 5% albedo -- 41.4 sec chord
Diameter=213.3 km assuming a 30% albedo -- 16.9 sec chord
Dynamical classification is SCATEXTD
Star training set for 14XS40, (2017/04/20 02:16UT) Object RA Dec mag sep mel Regulus 10:09:17.5 +11:52:55 1.3 28.47 158 Alphard 09:28:26.3 -08:44:04 2.0 13.52 152 PPM 191526 08:38:18.8 -04:59:43 6.2 0.53 159 PPM 191464 08:34:43.5 -04:33:40 8.3 0.46 159 PPM 191493 08:36:00.7 -04:38:05 9.3 0.16 159 14XS40 08:36:23.0 -04:45:51 14.9 159 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 14XS40, (2017/04/20 02:16UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 28.47 158 Alphard 09:27:35.2 -08:39:31 2.0 13.52 152 PPM 191526 08:37:27.2 -04:56:02 6.2 0.53 159 PPM 191464 08:33:51.8 -04:30:04 8.3 0.46 159 PPM 191493 08:35:08.9 -04:34:27 9.3 0.16 159 14XS40 08:35:31.3 -04:42:13 14.9 159 Positions are for J2000
Event circumstances last updated at 2017/04/24 16:02:25 UT
Marc W. Buie, Southwest Research Institute