Event between 01UN18 and star GA1040:00232660 with event index number of 201013
Geocentric closest approach at 2019/07/28 00:21:59 UTC
J2000 position of star is 02:27:06.4 +15:33:14
Equinox of date position of star is 02:28:10.6 +15:38:25
Stellar brightness G=16.4,
use SENSEUP=128
Star is 31 degrees from the moon.
Moon is 21% illuminated.
TNO apparent brightness V=23.4
TNO is 47.1 AU from the Sun
and 47.2 AU from the Earth.
The TNO is moving 6.6
km/sec on the sky relative to the star, or,
0.7 arcsec/hr.
The 1-sigma error in the time of the event is 1702 seconds.
The 1-sigma cross-track error in the shadow position is
4943 km.
The TNO has an absolute magnitude Hv=6.5
Diameter=307.6 km assuming a 5% albedo -- 46.3 sec chord
Diameter=125.6 km assuming a 30% albedo -- 18.9 sec chord
Dynamical classification is CLASSICAL
Star training set for 01UN18, (2019/07/28 00:22UT) Object RA Dec mag sep mel Aldebaran 04:37:02.8 +16:32:49 0.8 30.93 2 Hamal 02:08:16.9 +23:33:15 2.0 9.19 35 29 Ari 02:33:58.6 +15:07:13 6.0 1.49 29 PPM 118192 02:25:31.7 +15:36:45 7.9 0.64 31 PPM 118230 02:27:38.4 +15:27:38 9.9 0.22 31 01UN18 02:28:11.0 +15:38:27 16.4 30 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 01UN18, (2019/07/28 00:22UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 30.93 2 Hamal 02:07:10.7 +23:27:42 2.0 9.19 35 29 Ari 02:32:54.1 +15:02:05 6.0 1.49 29 PPM 118192 02:24:27.2 +15:31:29 7.9 0.64 31 PPM 118230 02:26:33.9 +15:22:24 9.9 0.22 31 01UN18 02:27:06.4 +15:33:14 16.4 31 Positions are for J2000
Event circumstances last updated at 2019/06/07 22:28:26 UT
Marc W. Buie, Southwest Research Institute