Event between (556004) 14HA200 and star GA0780:04961856 with event index number of 2485462
Geocentric closest approach at 2028/09/18 16:17:40 UTC
J2000 position of star is 15:54:02.2 -10:28:57
Equinox of date position of star is 15:55:22.7 -10:33:12
Stellar brightness G=15.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 65 degrees from the moon.
Moon is 0% illuminated.
Apparent brightness V=21.3
Object is 44.0 AU from the Sun
and 44.5 AU from the Earth.
Apparent velocity is 19.2
km/sec on the sky relative to the star, or,
2.1 arcsec/hr.
The 1-sigma error in the time of the event is 111 seconds.
The 1-sigma cross-track error in the shadow position is
1712 km.
The object has an absolute magnitude Hv=4.7
Diameter=673.0 km assuming a 5% albedo -- 36.3 sec chord
Diameter=274.8 km assuming a 30% albedo -- 14.8 sec chord
Dynamical classification is SCATNEAR
Star training set for 556004, (2028/09/18 16:15UT) Object RA Dec mag sep mel Antares 16:31:10.4 -26:29:35 0.9 18.00 75 1Del Oph 16:15:51.2 -03:45:57 2.7 8.45 70 50 Lib 16:02:20.9 -08:29:26 5.5 2.66 67 PPM 230922 15:55:48.6 -11:10:23 7.1 0.61 65 PPM 230906 15:55:13.3 -10:38:23 9.4 0.12 65 556004 15:55:36.6 -10:33:56 15.1 65 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 556004, (2028/09/18 16:15UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 18.00 75 1Del Oph 16:14:20.7 -03:41:43 2.7 8.45 70 50 Lib 16:00:47.6 -08:24:41 5.5 2.66 67 PPM 230922 15:54:13.8 -11:05:25 7.1 0.61 65 PPM 230906 15:53:38.9 -10:33:23 9.4 0.12 65 556004 15:54:02.2 -10:28:57 15.1 65 Positions are for J2000
Event circumstances last updated at 2024/06/24 21:34:03 UT
Marc W. Buie, Southwest Research Institute