Event between (437871) 01FN185 and star GA0820:04602783 with event index number of 198678
Geocentric closest approach at 2019/06/19 09:47:18 UTC
J2000 position of star is 14:52:39.1 -07:55:28
Equinox of date position of star is 14:53:41.3 -08:00:11
Stellar brightness G=17.2,
use SENSEUP=128
Star is 69 degrees from the moon.
Moon is 96% illuminated.
TNO apparent brightness V=23.2
TNO is 39.5 AU from the Sun
and 38.8 AU from the Earth.
The TNO is moving 16.4
km/sec on the sky relative to the star, or,
2.1 arcsec/hr.
The 1-sigma error in the time of the event is 590 seconds.
The 1-sigma cross-track error in the shadow position is
2771 km.
The TNO has an absolute magnitude Hv=7.2
Diameter=218.8 km assuming a 5% albedo -- 13.3 sec chord
Diameter=89.3 km assuming a 30% albedo -- 5.4 sec chord
Dynamical classification is SCATEXTD
Star training set for 437871, (2019/06/19 09:47UT) Object RA Dec mag sep mel Spica 13:26:13.3 -11:15:44 1.0 21.80 88 27Bet Lib 15:18:03.4 -09:27:13 2.6 6.19 63 19Del Lib 15:02:00.9 -08:35:42 4.9 2.14 67 PPM 197987 14:53:06.1 -07:28:48 8.4 0.54 69 PPM 197989 14:53:16.6 -07:40:01 9.6 0.35 69 437871 14:53:41.4 -08:00:12 17.2 69 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 437871, (2019/06/19 09:47UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 21.80 88 27Bet Lib 15:17:00.3 -09:22:59 2.6 6.19 63 19Del Lib 15:00:58.3 -08:31:08 4.9 2.14 67 PPM 197987 14:52:04.0 -07:24:03 8.4 0.54 69 PPM 197989 14:52:14.3 -07:35:17 9.6 0.35 69 437871 14:52:39.1 -07:55:28 17.2 69 Positions are for J2000
Event circumstances last updated at 2019/06/07 22:17:20 UT
Marc W. Buie, Southwest Research Institute