Event between (447178) 05RO43 and star GA0800:00634441 with event index number of 310494
Geocentric closest approach at 2019/10/16 17:47:16 UTC
J2000 position of star is 05:39:27.8 -09:49:58
Equinox of date position of star is 05:40:23.1 -09:49:24
Stellar brightness G=16.2,
use SENSEUP=128
Star is 40 degrees from the moon.
Moon is 92% illuminated.
TNO apparent brightness V=20.3
TNO is 19.2 AU from the Sun
and 18.8 AU from the Earth.
The TNO is moving 17.7
km/sec on the sky relative to the star, or,
4.7 arcsec/hr.
The 1-sigma error in the time of the event is 51 seconds.
The 1-sigma cross-track error in the shadow position is
1638 km.
The TNO has an absolute magnitude Hv=7.2
Diameter=229.1 km assuming a 5% albedo -- 12.3 sec chord
Diameter=93.5 km assuming a 30% albedo -- 5.0 sec chord
Dynamical classification is CENTAURR
Star training set for 447178, (2019/10/16 17:47UT) Object RA Dec mag sep mel Rigel 05:15:29.4 -08:10:49 0.1 6.37 34 Saiph 05:48:41.8 -09:39:50 2.1 2.05 41 49 Ori 05:39:50.6 -07:12:12 4.7 2.62 38 PPM 188347 05:41:53.5 -09:47:19 8.5 0.37 40 PPM 188322 05:40:32.0 -09:51:43 9.3 0.05 40 447178 05:40:24.1 -09:49:23 16.2 40 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 447178, (2019/10/16 17:47UT) Object RA Dec mag sep mel Rigel 05:14:32.3 -08:12:06 0.1 6.37 34 Saiph 05:47:45.4 -09:40:11 2.1 2.05 41 49 Ori 05:38:53.1 -07:12:47 4.7 2.62 38 PPM 188347 05:40:57.2 -09:47:51 8.5 0.37 40 PPM 188322 05:39:35.7 -09:52:18 9.3 0.05 40 447178 05:39:27.8 -09:49:58 16.2 40 Positions are for J2000
Event circumstances last updated at 2019/06/07 22:45:46 UT
Marc W. Buie, Southwest Research Institute