Event between (28978) Ixion and star GA0600:27481346 with event index number of 278559
Geocentric closest approach at 2020/07/13 22:48:55 UTC
J2000 position of star is 17:52:17.7 -29:49:44
Equinox of date position of star is 17:53:36.4 -29:49:57
Stellar brightness G=16.8,
use SENSEUP=128
Star is 123 degrees from the moon.
Moon is 41% illuminated.
TNO apparent brightness V=25.9
TNO is 39.0 AU from the Sun
and 38.0 AU from the Earth.
The TNO is moving 22.5
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 222 seconds.
The 1-sigma cross-track error in the shadow position is
2218 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=1148.2 km assuming a 5% albedo -- 2.7 sec chord
Diameter=468.7 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is 3:2E
Star training set for 28978, (2020/07/13 22:49UT) Object RA Dec mag sep mel Antares 16:30:40.2 -26:28:33 0.9 18.56 142 34Ups Sco 17:32:09.7 -37:18:37 2.7 8.71 126 PPM 296839 17:50:30.6 -31:42:30 4.9 1.99 124 PPM 296917 17:53:30.8 -30:09:19 8.4 0.32 123 PPM 267409 17:52:43.6 -29:58:01 9.6 0.23 123 28978 17:53:36.6 -29:49:57 16.8 123 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 28978, (2020/07/13 22:49UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 18.56 142 34Ups Sco 17:30:45.8 -37:17:46 2.7 8.71 126 PPM 296839 17:49:10.5 -31:42:12 4.9 1.99 124 PPM 296917 17:52:11.7 -30:09:06 8.4 0.32 123 PPM 267409 17:51:24.6 -29:57:47 9.6 0.23 123 28978 17:52:17.7 -29:49:44 16.8 123 Positions are for J2000
Event circumstances last updated at 2020/06/21 05:01:43 UT
Marc W. Buie, Southwest Research Institute