Event between (523790) 15HP9 and star GA0680:13833016 with event index number of 2602826
Geocentric closest approach at 2024/06/29 16:37:03 UTC
J2000 position of star is 17:34:30.2 -20:36:11
Equinox of date position of star is 17:35:57.6 -20:37:04
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 115 degrees from the moon.
Moon is 41% illuminated.
Apparent brightness V=22.7
Object is 16.7 AU from the Sun
and 15.7 AU from the Earth.
Apparent velocity is 21.1
km/sec on the sky relative to the star, or,
6.7 arcsec/hr.
The 1-sigma error in the time of the event is 195 seconds.
The 1-sigma cross-track error in the shadow position is
689 km.
The object has an absolute magnitude Hv=10.5
Diameter=50.1 km assuming a 5% albedo -- 2.3 sec chord
Diameter=20.5 km assuming a 30% albedo -- 0.9 sec chord
Dynamical classification is CENTAURR
Star training set for 523790, (2024/06/29 16:37UT) Object RA Dec mag sep mel Antares 16:30:54.8 -26:29:03 0.9 16.00 129 35Eta Oph 17:11:47.1 -15:45:13 2.6 7.52 120 PPM 267109 17:40:13.3 -21:55:30 6.4 1.64 114 PPM 267057 17:37:51.0 -20:59:27 8.4 0.58 114 PPM 267020 17:35:58.0 -20:26:43 9.4 0.17 115 523790 17:35:57.7 -20:37:04 16.8 114 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, (2024/06/29 16:37UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 16.00 129 35Eta Oph 17:10:22.7 -15:43:29 2.6 7.52 120 PPM 267109 17:38:44.8 -21:54:46 6.4 1.64 114 PPM 267057 17:36:23.2 -20:58:38 8.4 0.58 114 PPM 267020 17:34:30.6 -20:25:51 9.4 0.17 115 523790 17:34:30.2 -20:36:11 16.8 115 Positions are for J2000
Event circumstances last updated at 2024/06/11 03:47:14 UT
Marc W. Buie, Southwest Research Institute