Event between (523698) 14GD54 and star GA0740:05054952 with event index number of 1099866
Geocentric closest approach at 2021/07/05 15:39:22 UTC
J2000 position of star is 13:45:43.4 -14:21:33
Equinox of date position of star is 13:46:52.1 -14:27:54
Stellar brightness G=16.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 154 degrees from the moon.
Moon is 17% illuminated.
TNO apparent brightness V=22.3
TNO is 35.1 AU from the Sun
and 34.8 AU from the Earth.
The TNO is moving 2.7
km/sec on the sky relative to the star, or,
0.4 arcsec/hr.
The 1-sigma error in the time of the event is 537 seconds.
The 1-sigma cross-track error in the shadow position is
2290 km.
The TNO has an absolute magnitude Hv=6.7
Diameter=274.2 km assuming a 5% albedo -- 102.9 sec chord
Diameter=111.9 km assuming a 30% albedo -- 42.0 sec chord
Dynamical classification is SCATNEAR
Star training set for 523698, (2021/07/05 15:39UT) Object RA Dec mag sep mel Spica 13:26:19.8 -11:16:23 1.0 5.94 148 83 Vir 13:45:39.7 -16:17:11 5.6 1.84 154 PPM 227771 13:45:54.0 -14:20:01 6.9 0.27 154 PPM 227819 13:47:25.7 -14:31:26 9.5 0.14 154 523698 13:46:52.9 -14:27:58 16.4 154 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 523698, (2021/07/05 15:39UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 5.94 148 83 Vir 13:44:29.9 -16:10:45 5.6 1.84 154 PPM 227771 13:44:44.6 -14:13:34 6.9 0.27 154 PPM 227819 13:46:16.2 -14:25:01 9.5 0.14 154 523698 13:45:43.4 -14:21:33 16.4 154 Positions are for J2000
Event circumstances last updated at 2021/04/08 23:41:24 UT
Marc W. Buie, Southwest Research Institute