Event between (54598) Bienor and star GA1320:01787059 with event index number of 310827
Geocentric closest approach at 2019/09/09 04:52:59 UTC
J2000 position of star is 04:19:45.8 +42:41:05
Equinox of date position of star is 04:21:06.3 +42:43:47
Stellar brightness G=14.0,
use SENSEUP=64
Star is 135 degrees from the moon.
Moon is 79% illuminated.
TNO apparent brightness V=19.5
TNO is 14.6 AU from the Sun
and 14.4 AU from the Earth.
The TNO is moving 11.5
km/sec on the sky relative to the star, or,
3.9 arcsec/hr.
The 1-sigma error in the time of the event is 50 seconds.
The 1-sigma cross-track error in the shadow position is
715 km.
The TNO has an absolute magnitude Hv=7.5
Diameter=190.6 km assuming a 5% albedo -- 16.6 sec chord
Diameter=77.8 km assuming a 30% albedo -- 6.8 sec chord
Dynamical classification is CENTAURR
Star training set for 54598, (2019/09/09 04:53UT) Object RA Dec mag sep mel Aldebaran 04:37:03.2 +16:32:50 0.8 26.40 138 44Zet Per 03:55:22.5 +31:56:26 2.8 11.93 131 PPM 046963 04:19:30.3 +42:11:16 6.1 0.62 135 PPM 046980 04:20:35.4 +42:25:38 7.2 0.32 135 54598 04:21:08.4 +42:43:51 14.0 135 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 54598, (2019/09/09 04:53UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 26.40 138 44Zet Per 03:54:07.9 +31:53:01 2.8 11.93 131 PPM 046963 04:18:08.2 +42:08:27 6.1 0.62 135 PPM 046980 04:19:13.1 +42:22:51 7.2 0.32 135 54598 04:19:45.8 +42:41:05 14.0 135 Positions are for J2000
Event circumstances last updated at 2019/03/12 23:25:49 UT
Marc W. Buie, Southwest Research Institute