Event between (40314) 99KR16 and star GA0840:04942057 with event index number of 2309373
Geocentric closest approach at 2022/08/15 11:58:21 UTC
J2000 position of star is 16:21:25.2 -04:29:18
Equinox of date position of star is 16:22:35.8 -04:32:23
Stellar brightness G=13.4,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 124 degrees from the moon.
Moon is 85% illuminated.
TNO apparent brightness V=21.2
TNO is 34.2 AU from the Sun
and 34.0 AU from the Earth.
The TNO is moving 6.4
km/sec on the sky relative to the star, or,
0.9 arcsec/hr.
The 1-sigma error in the time of the event is 205 seconds.
The 1-sigma cross-track error in the shadow position is
1412 km.
The TNO has an absolute magnitude Hv=5.7
Diameter=436.5 km assuming a 5% albedo -- 68.0 sec chord
Diameter=178.2 km assuming a 30% albedo -- 27.8 sec chord
Dynamical classification is SCATNEAR
Star training set for 40314, (2022/08/15 11:57UT) Object RA Dec mag sep mel Antares 16:30:47.9 -26:28:49 0.9 22.03 119 1Del Oph 16:15:32.0 -03:45:03 2.7 1.93 126 2Eps Oph 16:19:31.2 -04:44:46 3.2 0.80 125 PPM 199550 16:21:27.6 -04:36:39 8.5 0.30 124 PPM 199555 16:21:50.9 -04:40:55 8.8 0.24 124 40314 16:22:36.9 -04:32:26 13.4 124 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, (2022/08/15 11:57UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 22.03 119 1Del Oph 16:14:20.7 -03:41:43 2.7 1.93 126 2Eps Oph 16:18:19.4 -04:41:32 3.2 0.80 125 PPM 199550 16:20:15.9 -04:33:29 8.5 0.30 124 PPM 199555 16:20:39.1 -04:37:45 8.8 0.24 124 40314 16:21:25.2 -04:29:18 13.4 124 Positions are for J2000
Event circumstances last updated at 2022/04/17 00:15:44 UT
Marc W. Buie, Southwest Research Institute