Event between 13MZ11 and star UC4-356-200309 with event index number of 133774
Geocentric closest approach at 2017/04/16 15:42:05 UTC
J2000 position of star is 21:48:30.8 -18:56:59
Equinox of date position of star is 21:49:26.2 -18:52:18
Stellar brightness R=15.4
Star is 57 degrees from the moon.
Moon is 75% illuminated.
TNO apparent brightness V=21.6
TNO is 20.8 AU from the Sun
and 21.2 AU from the Earth.
The TNO is moving 20.5
km/sec on the sky relative to the star, or,
4.8 arcsec/hr.
The 1-sigma error in the time of the event is 304 seconds.
The 1-sigma cross-track error in the shadow position is
2199 km.
The TNO has an absolute magnitude Hv=8.1
Diameter=145.2 km assuming a 5% albedo -- 7.1 sec chord
Diameter=59.3 km assuming a 30% albedo -- 2.9 sec chord
Dynamical classification is CENTAURR
Star training set for 13MZ11, (2017/04/16 15:42UT) Object RA Dec mag sep mel Fomalhaut 22:58:36.1 -29:31:49 1.2 18.99 71 PPM 239446 21:52:39.2 -18:32:30 6.5 0.82 58 PPM 239394 21:50:17.2 -18:18:20 7.9 0.60 58 PPM 239361 21:48:38.5 -18:44:39 9.1 0.23 57 13MZ11 21:49:28.3 -18:52:07 15.4 58 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 13MZ11, (2017/04/16 15:42UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.5 -29:37:23 1.2 18.99 71 PPM 239446 21:51:41.9 -18:37:24 6.5 0.82 58 PPM 239394 21:49:20.0 -18:23:12 7.9 0.60 58 PPM 239361 21:47:41.0 -18:49:30 9.1 0.23 57 13MZ11 21:48:30.8 -18:56:59 15.4 57 Positions are for J2000
Event circumstances last updated at 2016/09/02 18:13:22 UT
Marc W. Buie, Southwest Research Institute