Event between (40314) 99KR16 and star GA0860:05492188 with event index number of 2309627
Geocentric closest approach at 2028/03/31 21:01:33 UTC
J2000 position of star is 17:20:02.4 -02:48:25
Equinox of date position of star is 17:21:19.3 -02:49:49
Stellar brightness G=16.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 156 degrees from the moon.
Moon is 30% illuminated.
Apparent brightness V=21.1
Object is 34.0 AU from the Sun
and 33.6 AU from the Earth.
Apparent velocity is 12.2
km/sec on the sky relative to the star, or,
1.8 arcsec/hr.
The 1-sigma error in the time of the event is 105 seconds.
The 1-sigma cross-track error in the shadow position is
2122 km.
The object has an absolute magnitude Hv=5.6
Diameter=436.5 km assuming a 5% albedo -- 37.0 sec chord
Diameter=178.2 km assuming a 30% albedo -- 15.1 sec chord
Dynamical classification is SCATNEAR
Star training set for 40314, (2028/03/31 21:02UT) Object RA Dec mag sep mel Antares 16:31:08.7 -26:29:32 0.9 26.56 172 60Bet Oph 17:44:52.2 +04:33:27 2.8 9.42 148 PPM 180059 17:27:25.9 -01:40:27 6.4 1.88 155 PPM 200555 17:20:50.0 -02:46:35 7.4 0.18 156 PPM 200567 17:21:56.1 -02:46:00 9.6 0.12 156 40314 17:21:31.1 -02:50:02 16.2 156 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, (2028/03/31 21:02UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 26.56 172 60Bet Oph 17:43:28.3 +04:34:06 2.8 9.42 148 PPM 180059 17:25:58.0 -01:39:05 6.4 1.88 155 PPM 200555 17:19:21.3 -02:44:57 7.4 0.18 156 PPM 200567 17:20:27.4 -02:44:25 9.6 0.12 156 40314 17:20:02.4 -02:48:25 16.2 156 Positions are for J2000
Event circumstances last updated at 2024/06/23 21:29:46 UT
Marc W. Buie, Southwest Research Institute