Event between (174567) Varda and star GA0880:05615645 with event index number of 278169
Geocentric closest approach at 2020/07/17 18:04:24 UTC
J2000 position of star is 17:28:55.9 -01:43:49
Equinox of date position of star is 17:29:58.9 -01:44:42
Stellar brightness G=16.0,
use SENSEUP=128
Star is 159 degrees from the moon.
Moon is 10% illuminated.
TNO apparent brightness V=26.7
TNO is 46.4 AU from the Sun
and 45.6 AU from the Earth.
The TNO is moving 20.8
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 123 seconds.
The 1-sigma cross-track error in the shadow position is
1804 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=1259.0 km assuming a 5% albedo -- 2.9 sec chord
Diameter=514.0 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is SCATEXTD
Star training set for 174567, (2020/07/17 18:04UT) Object RA Dec mag sep mel Antares 16:30:40.2 -26:28:33 0.9 28.54 169 60Bet Oph 17:44:29.3 +04:33:37 2.8 7.27 152 PPM 180059 17:27:01.9 -01:40:05 6.4 0.75 159 PPM 180073 17:30:18.0 -01:30:20 9.9 0.25 159 174567 17:29:59.9 -01:44:43 16.0 159 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 174567, (2020/07/17 18:04UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 28.54 169 60Bet Oph 17:43:28.3 +04:34:05 2.8 7.27 152 PPM 180059 17:25:58.0 -01:39:05 6.4 0.75 159 PPM 180073 17:29:14.1 -01:29:26 9.9 0.25 159 174567 17:28:55.9 -01:43:49 16.0 159 Positions are for J2000
Event circumstances last updated at 2020/03/16 21:52:23 UT
Marc W. Buie, Southwest Research Institute