Event between (552678) 10JG210 and star GA0780:20489856 with event index number of 2225143
Geocentric closest approach at 2028/05/25 03:26:41 UTC
J2000 position of star is 19:38:35.6 -11:19:55
Equinox of date position of star is 19:39:51.6 -11:16:42
Stellar brightness G=16.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 138 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=21.1
TNO is 17.3 AU from the Sun
and 16.6 AU from the Earth.
The TNO is moving 10.7
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 436 seconds.
The 1-sigma cross-track error in the shadow position is
2050 km.
The TNO has an absolute magnitude Hv=8.5
Diameter=114.3 km assuming a 5% albedo -- 11.0 sec chord
Diameter=46.7 km assuming a 30% albedo -- 4.5 sec chord
Dynamical classification is CENTAURR
Star training set for 552678, (2028/05/25 03:17UT) Object RA Dec mag sep mel Antares 16:31:09.2 -26:29:33 0.9 46.93 175 Nunki 18:57:01.4 -26:15:31 2.0 18.12 152 37 Aql 19:36:41.0 -10:29:46 4.7 1.15 138 PPM 236241 19:38:18.8 -10:22:46 8.3 1.00 138 PPM 236298 19:41:01.1 -11:27:26 9.6 0.28 138 552678 19:40:09.8 -11:15:55 16.5 137 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 552678, (2028/05/25 03:17UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 46.93 175 Nunki 18:55:15.9 -26:17:49 2.0 18.12 152 37 Aql 19:35:07.3 -10:33:37 4.7 1.15 138 PPM 236241 19:36:45.1 -10:26:41 8.3 1.00 138 PPM 236298 19:39:26.8 -11:31:27 9.6 0.28 138 552678 19:38:35.6 -11:19:55 16.5 138 Positions are for J2000
Event circumstances last updated at 2022/11/30 02:45:37 UT
Marc W. Buie, Southwest Research Institute