Event between 00SR331 and star UC4-543-035394 with event index number of 92830
Geocentric closest approach at 2017/12/15 02:00:33 UTC
J2000 position of star is 06:51:02.6 +18:31:35
Equinox of date position of star is 06:52:05.5 +18:30:15
Stellar brightness R=15.7,
use SENSEUP=128
Star is 126 degrees from the moon.
Moon is 9% illuminated.
TNO apparent brightness V=23.9
TNO is 32.3 AU from the Sun
and 31.3 AU from the Earth.
The TNO is moving 22.5
km/sec on the sky relative to the star, or,
3.6 arcsec/hr.
The 1-sigma error in the time of the event is 683 seconds.
The 1-sigma cross-track error in the shadow position is
2940 km.
The TNO has an absolute magnitude Hv=8.8
Diameter=106.2 km assuming a 5% albedo -- 4.7 sec chord
Diameter=43.3 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is 5:2EEE
Star training set for 00SR331, (2017/12/15 02:01UT) Object RA Dec mag sep mel Pollux 07:46:24.7 +27:58:53 1.1 15.65 114 Alhena 06:38:44.9 +16:22:57 1.9 3.82 130 PPM 123009 06:47:24.3 +18:49:03 6.5 1.15 128 PPM 123122 06:51:17.2 +18:46:34 8.2 0.33 127 PPM 123150 06:52:27.2 +18:38:23 10.0 0.16 126 00SR331 06:52:05.6 +18:30:15 15.7 126 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, (2017/12/15 02:01UT) Object RA Dec mag sep mel Pollux 07:45:18.1 +28:01:33 1.1 15.65 114 Alhena 06:37:42.8 +16:23:57 1.9 3.82 130 PPM 123009 06:46:21.1 +18:50:16 6.5 1.15 128 PPM 123122 06:50:14.0 +18:47:53 8.2 0.33 127 PPM 123150 06:51:24.1 +18:39:44 10.0 0.16 126 00SR331 06:51:02.6 +18:31:35 15.7 126 Positions are for J2000
Event circumstances last updated at 2017/12/02 17:06:04 UT
Marc W. Buie, Southwest Research Institute