Event between 98UR43 and star UC4-590-020409 with event index number of 225605
Geocentric closest approach at 2019/11/06 23:33:03 UTC
J2000 position of star is 05:38:16.3 +27:52:48
Equinox of date position of star is 05:39:24.0 +27:53:21
Stellar brightness R=14.0,
use SENSEUP=64
Star is 103 degrees from the moon.
Moon is 73% illuminated.
TNO apparent brightness V=23.3
TNO is 30.9 AU from the Sun
and 30.1 AU from the Earth.
The TNO is moving 17.2
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 818 seconds.
The 1-sigma cross-track error in the shadow position is
2734 km.
The TNO has an absolute magnitude Hv=8.3
Diameter=129.4 km assuming a 5% albedo -- 7.5 sec chord
Diameter=52.8 km assuming a 30% albedo -- 3.1 sec chord
Dynamical classification is 3:2E
Star training set for 98UR43, (2019/11/06 23:33UT) Object RA Dec mag sep mel Aldebaran 04:37:03.7 +16:32:52 0.8 18.34 87 Alnath 05:27:32.9 +28:37:21 1.6 2.74 101 PPM 094572 05:38:23.3 +26:56:06 5.6 0.99 103 PPM 094540 05:37:10.3 +27:40:25 7.9 0.56 103 PPM 094626 05:40:59.4 +27:47:25 9.0 0.34 104 PPM 094605 05:39:58.3 +28:01:26 11.0 0.17 104 98UR43 05:39:31.3 +27:53:24 14.0 104 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 98UR43, (2019/11/06 23:33UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 18.34 87 Alnath 05:26:17.5 +28:36:24 1.6 2.74 101 PPM 094572 05:37:08.9 +26:55:28 5.6 0.99 103 PPM 094540 05:35:55.5 +27:39:44 7.9 0.56 103 PPM 094626 05:39:44.4 +27:46:51 9.0 0.34 104 PPM 094605 05:38:43.2 +28:00:50 11.0 0.17 104 98UR43 05:38:16.3 +27:52:48 14.0 103 Positions are for J2000
Event circumstances last updated at 2017/12/07 17:04:30 UT
Marc W. Buie, Southwest Research Institute