Event between (523716) 14KW101 and star GA0900:15979974 with event index number of 1132086
Geocentric closest approach at 2021/07/14 21:47:05 UTC
J2000 position of star is 20:54:34.9 +01:17:21
Equinox of date position of star is 20:55:39.8 +01:22:16
Stellar brightness G=15.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 139 degrees from the moon.
Moon is 24% illuminated.
TNO apparent brightness V=22.0
TNO is 39.0 AU from the Sun
and 38.1 AU from the Earth.
The TNO is moving 22.2
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 79 seconds.
The 1-sigma cross-track error in the shadow position is
1412 km.
The TNO has an absolute magnitude Hv=6.1
Diameter=369.8 km assuming a 5% albedo -- 16.7 sec chord
Diameter=151.0 km assuming a 30% albedo -- 6.8 sec chord
Dynamical classification is SCATEXTD
Star training set for 523716, (2021/07/14 21:47UT) Object RA Dec mag sep mel Fomalhaut 22:58:50.2 -29:30:28 1.2 42.64 157 Tarazed 19:47:17.0 +10:40:02 2.7 19.36 120 PPM 181099 20:50:23.6 -00:28:57 6.4 2.28 138 PPM 170957 20:56:14.0 +01:53:47 6.8 0.54 139 PPM 170919 20:55:04.7 +01:30:26 9.7 0.20 139 PPM 170943 20:55:47.4 +01:12:04 10.9 0.17 139 523716 20:55:40.6 +01:22:20 15.5 140 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 523716, (2021/07/14 21:47UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 42.64 157 Tarazed 19:46:15.6 +10:36:48 2.7 19.36 120 PPM 181099 20:49:17.2 -00:33:48 6.4 2.28 138 PPM 170957 20:55:08.5 +01:48:48 6.8 0.54 139 PPM 170919 20:53:59.0 +01:25:28 9.7 0.20 139 PPM 170943 20:54:41.6 +01:07:05 10.9 0.17 139 523716 20:54:34.9 +01:17:21 15.5 139 Positions are for J2000
Event circumstances last updated at 2021/04/08 23:41:37 UT
Marc W. Buie, Southwest Research Institute