Event between (40314) 99KR16 and star GA0860:05447337 with event index number of 2309635
Geocentric closest approach at 2028/05/28 23:35:14 UTC
J2000 position of star is 17:16:28.8 -02:17:00
Equinox of date position of star is 17:17:45.4 -02:18:31
Stellar brightness G=14.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 128 degrees from the moon.
Moon is 25% illuminated.
Apparent brightness V=20.9
Object is 34.0 AU from the Sun
and 33.0 AU from the Earth.
Apparent velocity is 23.4
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 82 seconds.
The 1-sigma cross-track error in the shadow position is
1296 km.
The object has an absolute magnitude Hv=5.6
Diameter=436.5 km assuming a 5% albedo -- 19.3 sec chord
Diameter=178.2 km assuming a 30% albedo -- 7.9 sec chord
Dynamical classification is SCATNEAR
Star training set for 40314, (2028/05/28 23:38UT) Object RA Dec mag sep mel Antares 16:31:09.3 -26:29:33 0.9 26.66 122 60Bet Oph 17:44:52.6 +04:33:26 2.8 9.61 132 PPM 180004 17:09:41.7 -01:06:53 6.5 2.39 126 PPM 200547 17:20:19.5 -02:50:19 7.0 0.79 129 PPM 200483 17:16:50.1 -02:33:35 9.8 0.37 128 PPM 180025 17:18:04.2 -02:18:39 10.7 0.03 128 40314 17:17:57.7 -02:18:45 14.7 129 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 40314, (2028/05/28 23:38UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 26.66 122 60Bet Oph 17:43:28.3 +04:34:06 2.8 9.61 132 PPM 180004 17:08:13.6 -01:04:47 6.5 2.39 126 PPM 200547 17:18:50.3 -02:48:39 7.0 0.79 129 PPM 200483 17:15:21.1 -02:31:46 9.8 0.37 128 PPM 180025 17:16:35.3 -02:16:54 10.7 0.03 128 40314 17:16:28.8 -02:17:00 14.7 128 Positions are for J2000
Event circumstances last updated at 2024/06/24 21:29:26 UT
Marc W. Buie, Southwest Research Institute