Event between (471143) Dziewanna and star GA0460:07752533 with event index number of 1054477
Geocentric closest approach at 2021/02/18 15:45:09 UTC
J2000 position of star is 14:28:40.0 -42:43:05
Equinox of date position of star is 14:30:00.7 -42:48:41
Stellar brightness G=16.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 151 degrees from the moon.
Moon is 40% illuminated.
TNO apparent brightness V=19.8
TNO is 35.4 AU from the Sun
and 35.2 AU from the Earth.
The TNO is moving 14.6
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 158 seconds.
The 1-sigma cross-track error in the shadow position is
2916 km.
The TNO has an absolute magnitude Hv=4.1
Diameter=933.3 km assuming a 5% albedo -- 64.0 sec chord
Diameter=381.0 km assuming a 30% albedo -- 26.1 sec chord
Dynamical classification is 7:2EEEEE
Star training set for 471143, (2021/02/18 15:45UT) Object RA Dec mag sep mel Hadar 14:05:20.0 -60:28:26 0.6 18.05 133 Alp Lup 14:43:20.7 -47:28:39 2.3 5.22 147 PPM 319404 14:21:29.9 -43:09:17 5.4 1.59 150 PPM 319612 14:33:02.5 -43:10:52 8.1 0.67 151 PPM 319555 14:29:33.8 -42:50:57 9.3 0.09 151 471143 14:30:00.8 -42:48:41 16.4 151 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 471143, (2021/02/18 15:45UT) Object RA Dec mag sep mel Hadar 14:03:49.3 -60:22:23 0.6 18.05 133 Alp Lup 14:41:55.7 -47:23:18 2.3 5.22 147 PPM 319404 14:20:09.7 -43:03:31 5.4 1.59 150 PPM 319612 14:31:41.2 -43:05:18 8.1 0.67 151 PPM 319555 14:28:13.0 -42:45:20 9.3 0.09 151 471143 14:28:40.0 -42:43:05 16.4 151 Positions are for J2000
Event circumstances last updated at 2021/02/06 20:35:36 UT
Marc W. Buie, Southwest Research Institute