Event between (307251) 02KW14 and star GA0640:09674084 with event index number of 356721
Geocentric closest approach at 2019/06/04 03:23:33 UTC
J2000 position of star is 16:58:37.8 -25:31:40
Equinox of date position of star is 16:59:48.4 -25:33:21
Stellar brightness G=15.4,
use SENSEUP=128
Star is 172 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=21.8
TNO is 42.4 AU from the Sun
and 41.4 AU from the Earth.
The TNO is moving 24.7
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 254 seconds.
The 1-sigma cross-track error in the shadow position is
2614 km.
The TNO has an absolute magnitude Hv=5.6
Diameter=457.1 km assuming a 5% albedo -- 18.5 sec chord
Diameter=186.6 km assuming a 30% albedo -- 7.6 sec chord
Dynamical classification is SCATEXTD
Star training set for 307251, (2019/06/04 03:24UT) Object RA Dec mag sep mel Antares 16:30:36.1 -26:28:24 0.9 6.63 166 23Tau Sco 16:37:05.7 -28:15:17 2.8 5.74 166 26 Oph 17:01:21.1 -25:01:01 5.8 0.64 172 PPM 266202 16:59:28.7 -26:05:14 7.4 0.54 172 PPM 266236 17:00:40.3 -25:43:39 9.2 0.26 172 307251 16:59:49.5 -25:33:22 15.4 172 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 307251, (2019/06/04 03:24UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 6.63 166 23Tau Sco 16:35:53.0 -28:12:58 2.8 5.74 166 26 Oph 17:00:09.6 -24:59:22 5.8 0.64 172 PPM 266202 16:58:16.7 -26:03:32 7.4 0.54 172 PPM 266236 16:59:28.5 -25:41:58 9.2 0.26 172 307251 16:58:37.8 -25:31:40 15.4 172 Positions are for J2000
Event circumstances last updated at 2019/02/12 08:20:48 UT
Marc W. Buie, Southwest Research Institute