Event between (444745) 07JF43 and star GA0780:05184483 with event index number of 213404
Geocentric closest approach at 2019/09/22 13:39:58 UTC
J2000 position of star is 16:20:46.5 -11:45:27
Equinox of date position of star is 16:21:51.2 -11:48:09
Stellar brightness G=15.8,
use SENSEUP=128
Star is 149 degrees from the moon.
Moon is 45% illuminated.
TNO apparent brightness V=21.2
TNO is 37.1 AU from the Sun
and 37.5 AU from the Earth.
The TNO is moving 17.5
km/sec on the sky relative to the star, or,
2.3 arcsec/hr.
The 1-sigma error in the time of the event is 140 seconds.
The 1-sigma cross-track error in the shadow position is
1562 km.
The TNO has an absolute magnitude Hv=5.3
Diameter=524.8 km assuming a 5% albedo -- 30.0 sec chord
Diameter=214.3 km assuming a 30% albedo -- 12.2 sec chord
Dynamical classification is 3:2E
Star training set for 444745, (2019/09/22 13:40UT) Object RA Dec mag sep mel Antares 16:30:37.2 -26:28:27 0.9 14.81 154 13Zet Oph 16:38:14.8 -10:36:20 2.6 4.19 152 15Psi Sco 16:13:04.8 -10:06:50 4.9 2.74 147 PPM 231649 16:25:17.7 -11:56:32 8.0 0.85 150 PPM 231546 16:21:20.9 -12:00:07 9.3 0.24 149 444745 16:21:52.2 -11:48:12 15.8 150 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 444745, (2019/09/22 13:40UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 14.81 154 13Zet Oph 16:37:09.6 -10:34:01 2.6 4.19 152 15Psi Sco 16:12:00.0 -10:03:51 4.9 2.74 147 PPM 231649 16:24:12.0 -11:53:53 8.0 0.85 150 PPM 231546 16:20:15.2 -11:57:22 9.3 0.24 149 444745 16:20:46.5 -11:45:27 15.8 149 Positions are for J2000
Event circumstances last updated at 2019/06/07 22:40:48 UT
Marc W. Buie, Southwest Research Institute