Event between (470596) 08NW4 and star UC4-445-131598 with event index number of 146628
Geocentric closest approach at 2017/04/29 05:12:07 UTC
J2000 position of star is 21:19:12.6 -01:11:33
Equinox of date position of star is 21:20:06.2 -01:07:07
Stellar brightness R=16.2,
use SENSEUP=128
Star is 116 degrees from the moon.
Moon is 11% illuminated.
TNO apparent brightness V=21.2
TNO is 36.6 AU from the Sun
and 36.8 AU from the Earth.
The TNO is moving 14.9
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 281 seconds.
The 1-sigma cross-track error in the shadow position is
4181 km.
The TNO has an absolute magnitude Hv=5.4
Diameter=501.2 km assuming a 5% albedo -- 33.7 sec chord
Diameter=204.6 km assuming a 30% albedo -- 13.8 sec chord
Dynamical classification is SCATNEAR
Star training set for 470596, (2017/04/29 05:12UT) Object RA Dec mag sep mel Fomalhaut 22:58:36.3 -29:31:48 1.2 36.83 101 Tarazed 19:47:05.0 +10:39:24 2.7 25.96 131 21 Aqr 21:26:11.1 -03:28:54 5.5 2.81 115 PPM 181231 21:17:33.1 -01:32:05 7.4 0.76 117 PPM 181233 21:18:48.6 -01:18:51 9.8 0.38 116 PPM 181242 21:20:27.9 -01:00:35 10.1 0.14 116 470596 21:20:06.2 -01:07:07 16.2 116 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 470596, (2017/04/29 05:12UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.5 -29:37:23 1.2 36.83 101 Tarazed 19:46:15.6 +10:36:48 2.7 25.96 131 21 Aqr 21:25:17.0 -03:33:25 5.5 2.81 115 PPM 181231 21:16:39.5 -01:36:28 7.4 0.76 117 PPM 181233 21:17:54.9 -01:23:15 9.8 0.38 116 PPM 181242 21:19:34.4 -01:05:01 10.1 0.14 116 470596 21:19:12.6 -01:11:33 16.2 116 Positions are for J2000
Event circumstances last updated at 2017/04/24 16:04:24 UT
Marc W. Buie, Southwest Research Institute