Event between (523790) 15HP9 and star GA0680:32291083 with event index number of 2605884
Geocentric closest approach at 2027/03/22 06:46:07 UTC
J2000 position of star is 18:49:23.8 -20:53:29
Equinox of date position of star is 18:50:51.2 -20:51:43
Stellar brightness G=16.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 102 degrees from the moon.
Moon is 100% illuminated.
Apparent brightness V=23.3
Object is 17.8 AU from the Sun
and 18.0 AU from the Earth.
Apparent velocity is 12.7
km/sec on the sky relative to the star, or,
3.5 arcsec/hr.
The 1-sigma error in the time of the event is 574 seconds.
The 1-sigma cross-track error in the shadow position is
1864 km.
The object has an absolute magnitude Hv=10.5
Diameter=50.1 km assuming a 5% albedo -- 3.8 sec chord
Diameter=20.5 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
Star training set for 523790, (2027/03/22 06:46UT) Object RA Dec mag sep mel Antares 16:31:04.9 -26:29:24 0.9 32.43 70 Nunki 18:56:57.1 -26:15:37 2.0 5.57 103 29 Sgr 18:51:17.0 -20:17:29 4.6 0.57 103 PPM 268914 18:49:29.1 -20:14:33 7.6 0.71 102 PPM 268917 18:49:34.1 -20:55:53 9.7 0.35 102 523790 18:51:01.0 -20:51:31 16.1 103 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, (2027/03/22 06:46UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 32.43 70 Nunki 18:55:15.9 -26:17:49 2.0 5.57 103 29 Sgr 18:49:40.1 -20:19:28 4.6 0.57 103 PPM 268914 18:47:52.3 -20:16:28 7.6 0.71 102 PPM 268917 18:47:56.8 -20:57:48 9.7 0.35 102 523790 18:49:23.8 -20:53:29 16.1 102 Positions are for J2000
Event circumstances last updated at 2024/06/21 21:27:22 UT
Marc W. Buie, Southwest Research Institute