Event between 08ST291 and star GA1080:00059557 with event index number of 215510
Geocentric closest approach at 2019/10/21 13:45:43 UTC
J2000 position of star is 00:30:39.6 +19:42:27
Equinox of date position of star is 00:31:39.5 +19:48:46
Stellar brightness G=15.9,
use SENSEUP=128
Star is 103 degrees from the moon.
Moon is 50% illuminated.
TNO apparent brightness V=22.2
TNO is 61.4 AU from the Sun
and 60.5 AU from the Earth.
The TNO is moving 25.3
km/sec on the sky relative to the star, or,
2.1 arcsec/hr.
The 1-sigma error in the time of the event is 150 seconds.
The 1-sigma cross-track error in the shadow position is
3395 km.
The TNO has an absolute magnitude Hv=4.3
Diameter=828.0 km assuming a 5% albedo -- 32.8 sec chord
Diameter=338.0 km assuming a 30% albedo -- 13.4 sec chord
Dynamical classification is 6:1EEEEE
Star training set for 08ST291, (2019/10/21 13:46UT) Object RA Dec mag sep mel Deneb 20:42:06.5 +45:21:07 1.3 53.32 112 Algenib 00:14:15.5 +15:17:37 2.8 6.14 108 52 Psc 00:33:38.0 +20:24:11 5.4 0.74 102 PPM 116548 00:32:57.1 +19:45:08 8.2 0.30 102 PPM 116506 00:30:37.1 +19:43:36 10.3 0.27 103 08ST291 00:31:41.8 +19:49:00 15.9 102 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 08ST291, (2019/10/21 13:46UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 53.32 112 Algenib 00:13:14.2 +15:11:01 2.8 6.14 108 52 Psc 00:32:35.7 +20:17:39 5.4 0.74 102 PPM 116548 00:31:54.9 +19:38:35 8.2 0.30 102 PPM 116506 00:29:34.9 +19:37:02 10.3 0.27 103 08ST291 00:30:39.6 +19:42:27 15.9 103 Positions are for J2000
Event circumstances last updated at 2019/01/29 21:38:58 UT
Marc W. Buie, Southwest Research Institute