Event between (444745) 07JF43 and star UC4-392-064592 with event index number of 88016
Geocentric closest approach at 2017/05/22 21:43:22 UTC
J2000 position of star is 16:11:40.8 -11:47:09
Equinox of date position of star is 16:12:36.6 -11:49:42
Stellar brightness R=15.6
Star is 138 degrees from the moon.
Moon is 12% illuminated.
TNO apparent brightness V=21.2
TNO is 37.6 AU from the Sun
and 36.6 AU from the Earth.
The TNO is moving 24.6
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 68 seconds.
The 1-sigma cross-track error in the shadow position is
1332 km.
The TNO has an absolute magnitude Hv=5.5
Diameter=478.6 km assuming a 5% albedo -- 20.3 sec chord
Diameter=195.4 km assuming a 30% albedo -- 8.3 sec chord
Dynamical classification is 3:2E
Star training set for 444745, (2017/05/22 21:43UT) Object RA Dec mag sep mel Antares 16:30:28.6 -26:28:09 0.9 15.23 130 13Zet Oph 16:38:07.1 -10:36:04 2.6 6.37 132 11 Sco 16:08:34.5 -12:47:27 6.1 1.38 139 PPM 231297 16:10:48.3 -11:10:37 8.5 0.79 138 PPM 231322 16:12:19.4 -11:48:43 9.3 0.08 138 444745 16:12:38.6 -11:49:47 15.6 138 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 444745, (2017/05/22 21:43UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:55 0.9 15.23 130 13Zet Oph 16:37:09.6 -10:34:01 2.6 6.37 132 11 Sco 16:07:36.3 -12:44:44 6.1 1.38 139 PPM 231297 16:09:50.8 -11:07:57 8.5 0.79 138 PPM 231322 16:11:21.6 -11:46:05 9.3 0.08 138 444745 16:11:40.8 -11:47:09 15.6 138 Positions are for J2000
Event circumstances last updated at 2016/10/07 18:07:20 UT
Marc W. Buie, Southwest Research Institute