Event between (556004) 14HA200 and star GA0800:04776454 with event index number of 2485323
Geocentric closest approach at 2023/08/05 15:08:48 UTC
J2000 position of star is 15:27:54.5 -09:19:22
Equinox of date position of star is 15:29:10.9 -09:24:11
Stellar brightness G=15.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 135 degrees from the moon.
Moon is 79% illuminated.
Apparent brightness V=21.4
Object is 45.5 AU from the Sun
and 45.3 AU from the Earth.
Apparent velocity is 4.2
km/sec on the sky relative to the star, or,
0.5 arcsec/hr.
The 1-sigma error in the time of the event is 403 seconds.
The 1-sigma cross-track error in the shadow position is
1709 km.
The object has an absolute magnitude Hv=4.7
Diameter=673.0 km assuming a 5% albedo -- 162.8 sec chord
Diameter=274.8 km assuming a 30% albedo -- 66.5 sec chord
Dynamical classification is SCATNEAR
Star training set for 556004, (2023/08/05 15:09UT) Object RA Dec mag sep mel Antares 16:30:51.5 -26:28:56 0.9 22.46 117 27Bet Lib 15:18:16.8 -09:28:07 2.6 2.69 137 31Eps Lib 15:25:28.8 -10:24:20 4.8 1.36 136 PPM 198638 15:29:44.7 -09:14:26 8.3 0.21 135 PPM 198617 15:28:45.4 -09:34:38 9.1 0.20 135 556004 15:29:11.2 -09:24:12 15.4 134 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, (2023/08/05 15:09UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 22.46 117 27Bet Lib 15:17:00.3 -09:22:59 2.6 2.69 137 31Eps Lib 15:24:11.8 -10:19:23 4.8 1.36 136 PPM 198638 15:28:28.1 -09:09:37 8.3 0.21 135 PPM 198617 15:27:28.7 -09:29:48 9.1 0.20 135 556004 15:27:54.5 -09:19:22 15.4 135 Positions are for J2000
Event circumstances last updated at 2023/07/04 04:03:36 UT
Marc W. Buie, Southwest Research Institute