Event between (523790) 15HP9 and star GA0680:32697974 with event index number of 2606861
Geocentric closest approach at 2028/10/05 14:46:01 UTC
J2000 position of star is 18:52:19.1 -21:06:04
Equinox of date position of star is 18:53:46.6 -21:04:11
Stellar brightness G=13.9,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 112 degrees from the moon.
Moon is 96% illuminated.
Apparent brightness V=23.5
Object is 18.4 AU from the Sun
and 18.4 AU from the Earth.
Apparent velocity is 7.5
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 1065 seconds.
The 1-sigma cross-track error in the shadow position is
2756 km.
The object has an absolute magnitude Hv=10.5
Diameter=50.1 km assuming a 5% albedo -- 6.5 sec chord
Diameter=20.5 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is CENTAURR
Star training set for 523790, (2028/10/05 14:46UT) Object RA Dec mag sep mel Antares 16:31:10.6 -26:29:36 0.9 33.02 145 Nunki 18:57:02.8 -26:15:30 2.0 5.24 112 33 Sgr 18:55:43.2 -21:19:19 5.6 0.47 111 PPM 269044 18:55:21.2 -21:00:50 8.4 0.31 111 PPM 269014 18:54:02.4 -20:51:33 9.5 0.21 112 523790 18:54:01.9 -21:03:51 13.9 111 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 523790, (2028/10/05 14:46UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 33.02 145 Nunki 18:55:15.9 -26:17:49 2.0 5.24 112 33 Sgr 18:54:00.1 -21:21:36 5.6 0.47 111 PPM 269044 18:53:38.4 -21:03:06 8.4 0.31 111 PPM 269014 18:52:19.7 -20:53:45 9.5 0.21 112 523790 18:52:19.1 -21:06:04 13.9 112 Positions are for J2000
Event circumstances last updated at 2024/06/24 21:34:14 UT
Marc W. Buie, Southwest Research Institute