Event between (408832) 01QJ298 and star UC4-423-141005 with event index number of 81868
Geocentric closest approach at 2017/08/28 01:19:57 UTC
J2000 position of star is 23:09:30.6 -05:32:52
Equinox of date position of star is 23:10:24.5 -05:27:12
Stellar brightness R=16.3,
use SENSEUP=128
Star is 115 degrees from the moon.
Moon is 38% illuminated.
TNO apparent brightness V=22.7
TNO is 44.7 AU from the Sun
and 43.7 AU from the Earth.
The TNO is moving 24.6
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 372 seconds.
The 1-sigma cross-track error in the shadow position is
4412 km.
The TNO has an absolute magnitude Hv=6.2
Diameter=346.7 km assuming a 5% albedo -- 14.1 sec chord
Diameter=141.6 km assuming a 30% albedo -- 5.8 sec chord
Dynamical classification is CLASSICAL
Star training set for 408832, (2017/08/28 01:20UT) Object RA Dec mag sep mel Fomalhaut 22:58:37.4 -29:31:42 1.2 24.24 104 Markab 23:05:38.5 +15:18:02 2.5 20.79 119 82 Aqr 23:03:27.5 -06:28:44 6.0 2.01 113 PPM 207234 23:11:34.5 -05:51:52 7.3 0.50 116 PPM 207224 23:10:42.4 -05:29:09 9.6 0.08 115 408832 23:10:25.4 -05:27:07 16.3 116 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 408832, (2017/08/28 01:20UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.5 -29:37:23 1.2 24.24 104 Markab 23:04:45.7 +15:12:18 2.5 20.79 119 82 Aqr 23:02:32.5 -06:34:27 6.0 2.01 113 PPM 207234 23:10:39.6 -05:57:37 7.3 0.50 116 PPM 207224 23:09:47.6 -05:34:54 9.6 0.08 115 408832 23:09:30.6 -05:32:52 16.3 115 Positions are for J2000
Event circumstances last updated at 2017/05/16 18:32:16 UT
Marc W. Buie, Southwest Research Institute