Event between (470308) 07JH43 and star UC4-329-081708 with event index number of 243873
Geocentric closest approach at 2020/02/07 19:05:15 UTC
J2000 position of star is 16:42:18.5 -24:21:26
Equinox of date position of star is 16:43:29.4 -24:23:34
Stellar brightness R=15.1,
use SENSEUP=128
Star is 135 degrees from the moon.
Moon is 97% illuminated.
TNO apparent brightness V=20.7
TNO is 40.6 AU from the Sun
and 41.0 AU from the Earth.
The TNO is moving 17.2
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 249 seconds.
The 1-sigma cross-track error in the shadow position is
2482 km.
The TNO has an absolute magnitude Hv=4.5
Diameter=758.6 km assuming a 5% albedo -- 44.1 sec chord
Diameter=309.7 km assuming a 30% albedo -- 18.0 sec chord
Dynamical classification is SCATNEAR
Star training set for 470308, (2020/02/07 19:05UT) Object RA Dec mag sep mel Antares 16:30:38.6 -26:28:30 0.9 3.58 132 23Tau Sco 16:37:08.2 -28:15:22 2.8 4.12 134 22 Sco 16:31:26.0 -25:09:28 4.5 2.85 132 PPM 265814 16:43:22.7 -24:51:22 8.4 0.46 135 PPM 265825 16:43:47.0 -24:40:11 9.9 0.28 135 470308 16:43:31.8 -24:23:39 15.1 135 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 470308, (2020/02/07 19:05UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 3.58 132 23Tau Sco 16:35:53.0 -28:12:58 2.8 4.12 134 22 Sco 16:30:12.5 -25:06:55 4.5 2.85 132 PPM 265814 16:42:09.2 -24:49:09 8.4 0.46 135 PPM 265825 16:42:33.5 -24:37:59 9.9 0.28 135 470308 16:42:18.5 -24:21:26 15.1 135 Positions are for J2000
Event circumstances last updated at 2019/06/07 23:15:00 UT
Marc W. Buie, Southwest Research Institute