Event between (555758) 14DP143 and star GA0840:04862374 with event index number of 2472268
Geocentric closest approach at 2028/06/20 23:59:50 UTC
J2000 position of star is 16:10:09.6 -04:03:06
Equinox of date position of star is 16:11:26.4 -04:06:49
Stellar brightness G=12.2,
use SENSEUP=16 with the MallinCam and and exposure
time of 250 milli-seconds with the QHY174 camera.
Star is 159 degrees from the moon.
Moon is 4% illuminated.
Apparent brightness V=22.4
Object is 29.3 AU from the Sun
and 28.5 AU from the Earth.
Apparent velocity is 20.1
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 310 seconds.
The 1-sigma cross-track error in the shadow position is
2073 km.
The object has an absolute magnitude Hv=7.7
Diameter=175.4 km assuming a 5% albedo -- 8.8 sec chord
Diameter=71.6 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is 3:2E
Star training set for 555758, (2028/06/20 23:55UT) Object RA Dec mag sep mel Antares 16:31:09.5 -26:29:33 0.9 22.85 178 1Del Oph 16:15:50.5 -03:45:55 2.7 1.10 158 PPM 199363 16:11:20.1 -03:32:23 5.0 0.59 158 PPM 199387 16:12:44.1 -04:03:39 8.2 0.28 159 PPM 199354 16:10:58.2 -04:13:13 9.8 0.20 159 555758 16:11:39.6 -04:07:27 12.2 159 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 555758, (2028/06/20 23:55UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 22.85 178 1Del Oph 16:14:20.7 -03:41:43 2.7 1.10 158 PPM 199363 16:09:50.5 -03:28:00 5.0 0.59 158 PPM 199387 16:11:14.1 -03:59:20 8.2 0.28 159 PPM 199354 16:09:28.2 -04:08:50 9.8 0.20 159 555758 16:10:09.6 -04:03:06 12.2 159 Positions are for J2000
Event circumstances last updated at 2024/04/19 00:46:05 UT
Marc W. Buie, Southwest Research Institute