Event between (143707) 03UY117 and star GA1120:00404707 with event index number of 309659
Geocentric closest approach at 2020/10/17 23:26:05 UTC
J2000 position of star is 03:23:57.6 +22:49:07
Equinox of date position of star is 03:25:10.0 +22:53:26
Stellar brightness G=16.2,
use SENSEUP=128
Star is 165 degrees from the moon.
Moon is 2% illuminated.
TNO apparent brightness V=25.4
TNO is 34.4 AU from the Sun
and 33.5 AU from the Earth.
The TNO is moving 20.4
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 77 seconds.
The 1-sigma cross-track error in the shadow position is
1270 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=436.5 km assuming a 5% albedo -- 3.0 sec chord
Diameter=178.2 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is 5:2EEE
Star training set for 143707, (2020/10/17 23:26UT) Object RA Dec mag sep mel Aldebaran 04:37:07.0 +16:32:58 0.8 18.06 152 44Zet Per 03:55:26.7 +31:56:37 2.8 11.26 154 61Tau1Ari 03:22:25.9 +21:13:14 5.3 1.79 167 PPM 092475 03:25:47.2 +22:06:45 6.9 0.79 166 PPM 092444 03:23:44.6 +22:52:59 9.8 0.33 166 PPM 092470 03:25:29.5 +22:39:02 10.6 0.25 165 143707 03:25:10.7 +22:53:28 16.2 165 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 143707, (2020/10/17 23:26UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 18.06 152 44Zet Per 03:54:07.9 +31:53:01 2.8 11.26 154 61Tau1Ari 03:21:13.7 +21:08:49 5.3 1.79 167 PPM 092475 03:24:34.5 +22:02:24 6.9 0.79 166 PPM 092444 03:22:31.6 +22:48:36 9.8 0.33 166 PPM 092470 03:24:16.5 +22:34:41 10.6 0.25 165 143707 03:23:57.6 +22:49:07 16.2 165 Positions are for J2000
Event circumstances last updated at 2020/07/31 20:59:28 UT
Marc W. Buie, Southwest Research Institute