Event between 17OF69 and star GA0840:19041431 with event index number of 347992
Geocentric closest approach at 2019/08/27 21:22:05 UTC
J2000 position of star is 20:13:12.1 -05:39:42
Equinox of date position of star is 20:14:14.0 -05:36:08
Stellar brightness G=17.2,
use SENSEUP=128
Star is 164 degrees from the moon.
Moon is 10% illuminated.
TNO apparent brightness V=20.8
TNO is 43.6 AU from the Sun
and 42.7 AU from the Earth.
The TNO is moving 21.5
km/sec on the sky relative to the star, or,
2.5 arcsec/hr.
The 1-sigma error in the time of the event is 98 seconds.
The 1-sigma cross-track error in the shadow position is
1630 km.
The TNO has an absolute magnitude Hv=4.4
Diameter=787.1 km assuming a 5% albedo -- 36.6 sec chord
Diameter=321.3 km assuming a 30% albedo -- 15.0 sec chord
Dynamical classification is 3:2E
Star training set for 17OF69, (2019/08/27 21:22UT) Object RA Dec mag sep mel Fomalhaut 22:58:44.0 -29:31:04 1.2 45.53 140 Tarazed 19:47:11.6 +10:39:45 2.7 17.60 148 PPM 203645 20:07:14.3 -04:01:16 6.2 2.35 163 PPM 203806 20:15:27.2 -05:59:12 7.6 0.49 164 PPM 203782 20:14:16.6 -05:42:47 9.5 0.11 164 17OF69 20:14:14.7 -05:36:05 17.2 164 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 17OF69, (2019/08/27 21:22UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.5 -29:37:23 1.2 45.53 140 Tarazed 19:46:15.6 +10:36:48 2.7 17.60 148 PPM 203645 20:06:12.3 -04:04:43 6.2 2.35 163 PPM 203806 20:14:24.4 -06:02:51 7.6 0.49 164 PPM 203782 20:13:13.9 -05:46:24 9.5 0.11 164 17OF69 20:13:12.1 -05:39:42 17.2 164 Positions are for J2000
Event circumstances last updated at 2019/06/07 22:36:17 UT
Marc W. Buie, Southwest Research Institute