Event between (574398) 10LO33 and star GA0820:19808807 with event index number of 2518582
Geocentric closest approach at 2021/09/30 08:02:26 UTC
J2000 position of star is 19:22:43.2 -07:07:39
Equinox of date position of star is 19:23:53.2 -07:05:04
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 161 degrees from the moon.
Moon is 38% illuminated.
TNO apparent brightness V=21.0
TNO is 16.1 AU from the Sun
and 15.8 AU from the Earth.
The TNO is moving 5.9
km/sec on the sky relative to the star, or,
1.8 arcsec/hr.
The 1-sigma error in the time of the event is 239 seconds.
The 1-sigma cross-track error in the shadow position is
2063 km.
The TNO has an absolute magnitude Hv=8.6
Diameter=116.4 km assuming a 5% albedo -- 19.8 sec chord
Diameter=47.5 km assuming a 30% albedo -- 8.1 sec chord
Dynamical classification is CENTAURR
Star training set for 574398, (2021/09/30 08:02UT) Object RA Dec mag sep mel Antares 16:30:44.7 -26:28:42 0.9 45.45 139 Tarazed 19:47:17.6 +10:40:04 2.7 18.68 144 PPM 202841 19:24:14.9 -07:21:27 6.4 0.29 162 PPM 202829 19:23:39.3 -07:10:34 8.5 0.11 161 PPM 202833 19:23:52.3 -07:05:06 8.7 0.00 161 574398 19:23:53.4 -07:05:04 16.9 161 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 574398, (2021/09/30 08:02UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 45.45 139 Tarazed 19:46:15.6 +10:36:48 2.7 18.68 144 PPM 202841 19:23:04.5 -07:24:03 6.4 0.29 162 PPM 202829 19:22:29.0 -07:13:08 8.5 0.11 161 PPM 202833 19:22:42.0 -07:07:41 8.7 0.00 161 574398 19:22:43.2 -07:07:39 16.9 161 Positions are for J2000
Event circumstances last updated at 2021/09/02 01:47:30 UT
Marc W. Buie, Southwest Research Institute