Event between (471143) Dziewanna and star GA0440:08866607 with event index number of 2265424
Geocentric closest approach at 2022/04/29 04:38:06 UTC
J2000 position of star is 14:32:16.4 -44:12:16
Equinox of date position of star is 14:33:42.6 -44:18:05
Stellar brightness G=16.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 138 degrees from the moon.
Moon is 3% illuminated.
TNO apparent brightness V=19.6
TNO is 35.1 AU from the Sun
and 34.2 AU from the Earth.
The TNO is moving 23.4
km/sec on the sky relative to the star, or,
3.4 arcsec/hr.
The 1-sigma error in the time of the event is 135 seconds.
The 1-sigma cross-track error in the shadow position is
2391 km.
The TNO has an absolute magnitude Hv=4.1
Diameter=933.3 km assuming a 5% albedo -- 39.9 sec chord
Diameter=381.0 km assuming a 30% albedo -- 16.3 sec chord
Dynamical classification is 7:2EEEEE
Star training set for 471143, (2022/04/29 04:38UT) Object RA Dec mag sep mel PPM 360911 14:41:08.3 -60:55:35 0.0 16.66 122 Alp Lup 14:43:25.5 -47:28:57 2.3 3.60 134 PPM 319585 14:31:35.7 -45:25:12 5.8 1.18 137 PPM 319665 14:36:08.8 -44:07:30 8.3 0.47 137 PPM 319638 14:34:48.8 -44:08:01 9.9 0.26 138 471143 14:33:43.1 -44:18:07 16.2 137 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, (2022/04/29 04:38UT) Object RA Dec mag sep mel PPM 360911 14:39:25.2 -60:49:52 0.0 16.66 122 Alp Lup 14:41:55.7 -47:23:18 2.3 3.60 134 PPM 319585 14:30:08.6 -45:19:18 5.8 1.18 137 PPM 319665 14:34:42.0 -44:01:42 8.3 0.47 137 PPM 319638 14:33:22.2 -44:02:11 9.9 0.26 138 471143 14:32:16.4 -44:12:16 16.2 137 Positions are for J2000
Event circumstances last updated at 2022/03/15 01:01:07 UT
Marc W. Buie, Southwest Research Institute