Event between (531142) 12FL84 and star GA0680:06378236 with event index number of 2432414
Geocentric closest approach at 2028/03/25 03:54:16 UTC
J2000 position of star is 15:39:00.0 -21:12:40
Equinox of date position of star is 15:40:25.7 -21:17:22
Stellar brightness G=16.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 116 degrees from the moon.
Moon is 1% illuminated.
Apparent brightness V=23.2
Object is 42.9 AU from the Sun
and 42.3 AU from the Earth.
Apparent velocity is 13.1
km/sec on the sky relative to the star, or,
1.5 arcsec/hr.
The 1-sigma error in the time of the event is 484 seconds.
The 1-sigma cross-track error in the shadow position is
5605 km.
The object has an absolute magnitude Hv=6.8
Diameter=263.0 km assuming a 5% albedo -- 20.2 sec chord
Diameter=107.4 km assuming a 30% albedo -- 8.2 sec chord
Dynamical classification is SCATNEAR
Star training set for 531142, (2028/03/25 03:54UT) Object RA Dec mag sep mel Antares 16:31:08.6 -26:29:31 0.9 12.65 104 7Del Sco 16:02:00.5 -22:41:59 2.3 5.14 111 PPM 264480 15:39:55.1 -21:06:26 5.9 0.26 116 PPM 264518 15:41:18.8 -21:06:28 8.3 0.25 116 PPM 264478 15:39:51.4 -21:27:13 8.9 0.24 116 531142 15:40:38.8 -21:18:05 16.5 116 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 531142, (2028/03/25 03:54UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 12.65 104 7Del Sco 16:00:20.0 -22:37:19 2.3 5.14 111 PPM 264480 15:38:16.4 -21:01:00 5.9 0.26 116 PPM 264518 15:39:40.1 -21:01:05 8.3 0.25 116 PPM 264478 15:38:12.5 -21:21:47 8.9 0.24 116 531142 15:39:00.0 -21:12:40 16.5 116 Positions are for J2000
Event circumstances last updated at 2024/06/23 21:29:43 UT
Marc W. Buie, Southwest Research Institute