Event between (530838) 11UC411 and star GA1100:00329663 with event index number of 1598842
Geocentric closest approach at 2020/01/29 23:45:53 UTC
J2000 position of star is 03:01:23.7 +21:17:34
Equinox of date position of star is 03:02:30.9 +21:22:08
Stellar brightness G=16.4,
use SENSEUP=128
Star is 44 degrees from the moon.
Moon is 23% illuminated.
TNO apparent brightness V=22.9
TNO is 29.6 AU from the Sun
and 29.4 AU from the Earth.
The TNO is moving 2.4
km/sec on the sky relative to the star, or,
0.4 arcsec/hr.
The 1-sigma error in the time of the event is 793 seconds.
The 1-sigma cross-track error in the shadow position is
1144 km.
The TNO has an absolute magnitude Hv=8.0
Diameter=151.4 km assuming a 5% albedo -- 62.1 sec chord
Diameter=61.8 km assuming a 30% albedo -- 25.3 sec chord
Dynamical classification is 3:2E
Star training set for 530838, (2020/01/29 23:46UT) Object RA Dec mag sep mel Aldebaran 04:37:04.5 +16:32:53 0.8 22.84 64 Hamal 02:08:18.6 +23:33:23 2.0 12.71 35 48Eps Ari 03:00:21.8 +21:25:10 5.6 0.51 44 PPM 092121 03:00:02.4 +21:41:49 6.8 0.67 44 PPM 092127 03:00:50.5 +21:36:29 9.2 0.46 44 PPM 092137 03:01:46.1 +21:07:09 10.5 0.31 44 530838 03:02:32.9 +21:22:16 16.4 44 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 530838, (2020/01/29 23:46UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 22.84 64 Hamal 02:07:10.7 +23:27:42 2.0 12.71 35 48Eps Ari 02:59:12.7 +21:20:25 5.6 0.51 44 PPM 092121 02:58:53.1 +21:37:04 6.8 0.67 44 PPM 092127 02:59:41.2 +21:31:45 9.2 0.46 44 PPM 092137 03:00:37.0 +21:02:25 10.5 0.31 44 530838 03:01:23.7 +21:17:34 16.4 44 Positions are for J2000
Event circumstances last updated at 2019/07/02 02:27:54 UT
Marc W. Buie, Southwest Research Institute