Event between (543435) 14GC54 and star GA0700:06049493 with event index number of 2252420
Geocentric closest approach at 2025/09/07 22:56:00 UTC
J2000 position of star is 15:55:55.5 -18:36:33
Equinox of date position of star is 15:57:20.2 -18:40:45
Stellar brightness G=11.9,
use SENSEUP=16 with the MallinCam and and exposure
time of 250 milli-seconds with the QHY174 camera.
Star is 107 degrees from the moon.
Moon is 100% illuminated.
Apparent brightness V=22.1
Object is 30.9 AU from the Sun
and 31.1 AU from the Earth.
Apparent velocity is 13.6
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 101 seconds.
The 1-sigma cross-track error in the shadow position is
1269 km.
The object has an absolute magnitude Hv=7.0
Diameter=232.3 km assuming a 5% albedo -- 17.6 sec chord
Diameter=94.8 km assuming a 30% albedo -- 7.2 sec chord
Dynamical classification is 3:2E
Star training set for 543435, (2025/09/07 23:01UT) Object RA Dec mag sep mel Antares 16:30:59.2 -26:29:12 0.9 10.99 98 8Bet1Sco 16:06:56.1 -19:52:25 2.6 2.54 105 47 Lib 15:56:29.7 -19:27:24 5.9 0.80 108 PPM 230949 15:57:06.5 -18:51:52 8.2 0.20 108 PPM 230961 15:57:47.2 -18:40:50 9.2 0.09 107 543435 15:57:24.5 -18:40:57 11.9 107 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 543435, (2025/09/07 23:01UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 10.99 98 8Bet1Sco 16:05:26.2 -19:48:20 2.6 2.54 105 47 Lib 15:55:00.4 -19:22:59 5.9 0.80 108 PPM 230949 15:55:37.4 -18:47:28 8.2 0.20 108 PPM 230961 15:56:18.3 -18:36:27 9.2 0.09 107 543435 15:55:55.5 -18:36:33 11.9 107 Positions are for J2000
Event circumstances last updated at 2024/06/18 02:53:33 UT
Marc W. Buie, Southwest Research Institute