Event between 01FU185 and star GA0860:04323381 with event index number of 150110
Geocentric closest approach at 2018/08/19 00:53:38 UTC
J2000 position of star is 14:18:42.6 -03:53:30
Equinox of date position of star is 14:19:40.3 -03:58:33
Stellar brightness G=15.7,
use SENSEUP=128
Star is 31 degrees from the moon.
Moon is 57% illuminated.
TNO apparent brightness V=24.7
TNO is 35.3 AU from the Sun
and 35.7 AU from the Earth.
The TNO is moving 16.5
km/sec on the sky relative to the star, or,
2.3 arcsec/hr.
The 1-sigma error in the time of the event is 78 seconds.
The 1-sigma cross-track error in the shadow position is
1294 km.
The TNO has an absolute magnitude Hv=9.0
Diameter=95.5 km assuming a 5% albedo -- 5.8 sec chord
Diameter=39.0 km assuming a 30% albedo -- 2.4 sec chord
Dynamical classification is SCATNEAR
Star training set for 01FU185, (2018/08/19 00:54UT) Object RA Dec mag sep mel Spica 13:26:10.6 -11:15:29 1.0 15.12 41 99Iot Vir 14:16:59.7 -06:05:19 4.1 2.22 30 PPM 197371 14:17:28.2 -03:16:56 6.7 0.89 31 PPM 197427 14:20:26.0 -04:11:26 9.4 0.28 30 01FU185 14:19:40.9 -03:58:36 15.7 30 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 01FU185, (2018/08/19 00:54UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 15.12 41 99Iot Vir 14:16:00.9 -06:00:10 4.1 2.22 30 PPM 197371 14:16:30.1 -03:11:48 6.7 0.89 31 PPM 197427 14:19:27.7 -04:06:20 9.4 0.28 30 01FU185 14:18:42.6 -03:53:30 15.7 31 Positions are for J2000
Event circumstances last updated at 2018/06/05 16:20:22 UT
Marc W. Buie, Southwest Research Institute