Event between (523755) 14WZ508 and star GA0840:04057485 with event index number of 1027402
Geocentric closest approach at 2020/12/21 07:15:12 UTC
J2000 position of star is 11:39:04.1 -05:43:56
Equinox of date position of star is 11:40:08.3 -05:50:54
Stellar brightness G=16.1,
use SENSEUP=128
Star is 166 degrees from the moon.
Moon is 44% illuminated.
TNO apparent brightness V=22.4
TNO is 27.1 AU from the Sun
and 27.1 AU from the Earth.
The TNO is moving 8.3
km/sec on the sky relative to the star, or,
1.5 arcsec/hr.
The 1-sigma error in the time of the event is 173 seconds.
The 1-sigma cross-track error in the shadow position is
1380 km.
The TNO has an absolute magnitude Hv=7.9
Diameter=157.8 km assuming a 5% albedo -- 19.1 sec chord
Diameter=64.4 km assuming a 30% albedo -- 7.8 sec chord
Dynamical classification is CENTAURR
Star training set for 523755, (2020/12/21 07:15UT) Object RA Dec mag sep mel Spica 13:26:18.1 -11:16:13 1.0 26.78 148 4Gam Crv 12:16:53.3 -17:39:30 2.6 14.83 153 PPM 194769 11:44:59.5 -06:47:38 6.1 1.53 165 PPM 194715 11:41:55.7 -05:18:55 8.0 0.69 167 PPM 194691 11:40:49.3 -06:07:52 9.4 0.33 166 523755 11:40:08.4 -05:50:55 16.1 166 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 523755, (2020/12/21 07:15UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 26.78 148 4Gam Crv 12:15:48.1 -17:32:31 2.6 14.83 153 PPM 194769 11:43:55.2 -06:40:39 6.1 1.53 165 PPM 194715 11:40:51.4 -05:11:56 8.0 0.69 167 PPM 194691 11:39:45.1 -06:00:53 9.4 0.33 166 523755 11:39:04.1 -05:43:56 16.1 166 Positions are for J2000
Event circumstances last updated at 2020/12/05 22:00:56 UT
Marc W. Buie, Southwest Research Institute