Event between (28978) Ixion and star GA0560:37043035 with event index number of 1390768
Geocentric closest approach at 2025/06/26 10:25:36 UTC
J2000 position of star is 18:28:11.6 -32:05:25
Equinox of date position of star is 18:29:46.0 -32:04:24
Stellar brightness G=16.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 167 degrees from the moon.
Moon is 2% illuminated.
Apparent brightness V=19.2
Object is 37.7 AU from the Sun
and 36.7 AU from the Earth.
Apparent velocity is 24.8
km/sec on the sky relative to the star, or,
3.4 arcsec/hr.
The 1-sigma error in the time of the event is 249 seconds.
The 1-sigma cross-track error in the shadow position is
2328 km.
The object has an absolute magnitude Hv=3.5
Diameter=1148.2 km assuming a 5% albedo -- 49.2 sec chord
Diameter=468.7 km assuming a 30% albedo -- 20.1 sec chord
Dynamical classification is 3:2E
Star training set for 28978, (2025/06/26 10:26UT) Object RA Dec mag sep mel Antares 16:30:58.5 -26:29:11 0.9 26.43 141 38Zet Sgr 19:04:13.8 -29:50:29 2.7 7.70 174 PPM 297823 18:32:45.1 -32:58:11 5.1 1.09 167 PPM 297746 18:29:23.9 -32:05:52 8.1 0.10 167 28978 18:29:51.2 -32:04:21 16.4 167 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, (2025/06/26 10:26UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 26.43 141 38Zet Sgr 19:02:36.7 -29:52:49 2.7 7.70 174 PPM 297823 18:31:04.8 -32:59:22 5.1 1.09 167 PPM 297746 18:27:44.3 -32:06:56 8.1 0.10 167 28978 18:28:11.6 -32:05:25 16.4 167 Positions are for J2000
Event circumstances last updated at 2024/03/02 06:23:29 UT
Marc W. Buie, Southwest Research Institute