Event between (505624) 14GU53 and star GA0900:04627801 with event index number of 1136961
Geocentric closest approach at 2021/04/01 06:05:43 UTC
J2000 position of star is 16:30:20.7 +00:23:54
Equinox of date position of star is 16:31:25.2 +00:21:14
Stellar brightness G=16.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 22 degrees from the moon.
Moon is 83% illuminated.
TNO apparent brightness V=21.8
TNO is 38.0 AU from the Sun
and 37.5 AU from the Earth.
The TNO is moving 15.5
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 92 seconds.
The 1-sigma cross-track error in the shadow position is
1591 km.
The TNO has an absolute magnitude Hv=5.9
Diameter=394.5 km assuming a 5% albedo -- 25.4 sec chord
Diameter=161.0 km assuming a 30% albedo -- 10.4 sec chord
Dynamical classification is SCATEXTD
Star training set for 505624, (2021/04/01 06:06UT) Object RA Dec mag sep mel Antares 16:30:42.8 -26:28:38 0.9 26.83 11 1Del Oph 16:15:27.7 -03:44:51 2.7 5.72 16 14 Oph 16:42:47.2 +01:08:32 6.0 2.95 24 PPM 162683 16:29:39.0 +00:37:08 7.3 0.52 22 PPM 162702 16:30:15.1 +00:12:21 9.0 0.33 21 PPM 162718 16:31:07.5 +00:36:48 11.5 0.27 22 505624 16:31:25.8 +00:21:12 16.0 22 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 505624, (2021/04/01 06:06UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 26.83 11 1Del Oph 16:14:20.7 -03:41:43 2.7 5.72 16 14 Oph 16:41:42.4 +01:10:53 6.0 2.95 24 PPM 162683 16:28:34.0 +00:39:53 7.3 0.52 22 PPM 162702 16:29:09.9 +00:15:04 9.0 0.33 21 PPM 162718 16:30:02.4 +00:39:30 11.5 0.27 22 505624 16:30:20.7 +00:23:54 16.0 22 Positions are for J2000
Event circumstances last updated at 2021/01/19 21:41:19 UT
Marc W. Buie, Southwest Research Institute