Event between 15BW518 and star GA1120:03174039 with event index number of 242050
Geocentric closest approach at 2019/06/04 21:07:53 UTC
J2000 position of star is 09:42:40.2 +23:04:19
Equinox of date position of star is 09:43:44.8 +22:59:03
Stellar brightness G=13.8,
use SENSEUP=64
Star is 48 degrees from the moon.
Moon is 3% illuminated.
TNO apparent brightness V=22.5
TNO is 38.1 AU from the Sun
and 38.4 AU from the Earth.
The TNO is moving 17.2
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 582 seconds.
The 1-sigma cross-track error in the shadow position is
5544 km.
The TNO has an absolute magnitude Hv=6.5
Diameter=302.0 km assuming a 5% albedo -- 17.6 sec chord
Diameter=123.3 km assuming a 30% albedo -- 7.2 sec chord
Dynamical classification is CLASSICAL
Star training set for 15BW518, (2019/06/04 21:08UT) Object RA Dec mag sep mel Regulus 10:09:24.3 +11:52:18 1.3 12.68 57 17Eps Leo 09:46:57.0 +23:41:02 3.0 1.01 49 PPM 099787 09:43:08.6 +23:14:24 8.4 0.29 48 PPM 099786 09:42:59.7 +22:48:38 11.0 0.25 48 15BW518 09:43:46.1 +22:58:57 13.8 49 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 15BW518, (2019/06/04 21:08UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 12.68 57 17Eps Leo 09:45:51.0 +23:46:27 3.0 1.01 49 PPM 099787 09:42:02.5 +23:19:45 8.4 0.29 48 PPM 099786 09:41:53.8 +22:53:59 11.0 0.25 48 15BW518 09:42:40.2 +23:04:19 13.8 48 Positions are for J2000
Event circumstances last updated at 2019/01/17 21:50:14 UT
Marc W. Buie, Southwest Research Institute