Event between 00SR331 and star UC4-542-036038 with event index number of 168443
Geocentric closest approach at 2019/01/04 23:53:30 UTC
J2000 position of star is 06:58:48.4 +18:20:19
Equinox of date position of star is 06:59:51.2 +18:18:47
Stellar brightness R=15.0,
use SENSEUP=128
Star is 168 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=23.9
TNO is 32.5 AU from the Sun
and 31.5 AU from the Earth.
The TNO is moving 24.2
km/sec on the sky relative to the star, or,
3.8 arcsec/hr.
The 1-sigma error in the time of the event is 842 seconds.
The 1-sigma cross-track error in the shadow position is
1217 km.
The TNO has an absolute magnitude Hv=8.8
Diameter=106.2 km assuming a 5% albedo -- 4.4 sec chord
Diameter=43.3 km assuming a 30% albedo -- 1.8 sec chord
Dynamical classification is 5:2EEE
Star training set for 00SR331, (2019/01/04 23:54UT) Object RA Dec mag sep mel Pollux 07:46:28.6 +27:58:44 1.1 14.41 158 Alhena 06:38:48.6 +16:22:53 1.9 5.39 172 PPM 123373 07:01:23.4 +15:30:26 6.4 2.83 167 PPM 123314 06:58:49.4 +17:52:31 6.7 0.51 168 PPM 123345 07:00:17.3 +18:41:34 9.4 0.39 168 00SR331 06:59:55.0 +18:18:42 15.0 168 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 00SR331, (2019/01/04 23:54UT) Object RA Dec mag sep mel Pollux 07:45:18.1 +28:01:33 1.1 14.41 158 Alhena 06:37:42.8 +16:23:57 1.9 5.39 172 PPM 123373 07:00:18.1 +15:32:06 6.4 2.83 167 PPM 123314 06:57:43.0 +17:54:07 6.7 0.51 168 PPM 123345 06:59:10.5 +18:43:12 9.4 0.39 168 00SR331 06:58:48.4 +18:20:19 15.0 168 Positions are for J2000
Event circumstances last updated at 2017/12/05 19:09:57 UT
Marc W. Buie, Southwest Research Institute