Event between (500877) 13JE64 and star GA0700:10522290 with event index number of 2332971
Geocentric closest approach at 2028/07/18 12:34:57 UTC
J2000 position of star is 17:25:27.0 -19:39:18
Equinox of date position of star is 17:26:53.8 -19:40:30
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 166 degrees from the moon.
Moon is 16% illuminated.
Apparent brightness V=24.3
Object is 39.4 AU from the Sun
and 38.5 AU from the Earth.
Apparent velocity is 19.3
km/sec on the sky relative to the star, or,
2.5 arcsec/hr.
The 1-sigma error in the time of the event is 780 seconds.
The 1-sigma cross-track error in the shadow position is
3302 km.
The object has an absolute magnitude Hv=8.3
Diameter=138.0 km assuming a 5% albedo -- 6.8 sec chord
Diameter=56.4 km assuming a 30% albedo -- 2.8 sec chord
Dynamical classification is 2:1E
Star training set for 500877, (2028/07/18 12:35UT) Object RA Dec mag sep mel Antares 16:31:09.8 -26:29:34 0.9 14.55 179 35Eta Oph 17:12:01.0 -15:45:30 2.6 5.32 166 PPM 233026 17:26:17.5 -18:28:11 6.4 1.23 165 PPM 233004 17:24:57.2 -19:28:24 8.3 0.55 166 PPM 233043 17:27:10.6 -19:45:51 8.6 0.09 166 500877 17:27:08.3 -19:40:41 16.8 165 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 500877, (2028/07/18 12:35UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 14.55 179 35Eta Oph 17:10:22.7 -15:43:29 2.6 5.32 166 PPM 233026 17:24:37.1 -18:26:45 6.4 1.23 165 PPM 233004 17:23:16.1 -19:26:55 8.3 0.55 166 PPM 233043 17:25:29.2 -19:44:27 8.6 0.09 166 500877 17:25:27.0 -19:39:18 16.8 165 Positions are for J2000
Event circumstances last updated at 2024/06/24 21:33:12 UT
Marc W. Buie, Southwest Research Institute