Event between 11UJ411 and star GA1080:00318273 with event index number of 2128858
Geocentric closest approach at 2021/10/30 18:24:26 UTC
J2000 position of star is 03:02:36.0 +19:43:01
Equinox of date position of star is 03:03:50.4 +19:48:05
Stellar brightness G=15.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 101 degrees from the moon.
Moon is 31% illuminated.
TNO apparent brightness V=24.1
TNO is 37.3 AU from the Sun
and 36.3 AU from the Earth.
The TNO is moving 24.3
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 159 seconds.
The 1-sigma cross-track error in the shadow position is
2007 km.
The TNO has an absolute magnitude Hv=8.4
Diameter=123.0 km assuming a 5% albedo -- 5.1 sec chord
Diameter=50.2 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is 5:3EE
Star training set for 11UJ411, (2021/10/30 18:24UT) Object RA Dec mag sep mel Aldebaran 04:37:10.5 +16:33:05 0.8 22.39 81 Hamal 02:08:24.5 +23:33:53 2.0 13.41 111 48Eps Ari 03:00:27.8 +21:25:35 5.6 1.81 101 PPM 118751 03:02:25.4 +19:29:17 8.5 0.46 101 PPM 118776 03:04:23.1 +19:53:09 8.8 0.15 101 11UJ411 03:03:50.7 +19:48:06 15.9 101 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 11UJ411, (2021/10/30 18:24UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 22.39 81 Hamal 02:07:10.7 +23:27:41 2.0 13.41 111 48Eps Ari 02:59:12.6 +21:20:25 5.6 1.81 101 PPM 118751 03:01:10.9 +19:24:10 8.5 0.46 101 PPM 118776 03:03:08.4 +19:48:05 8.8 0.15 101 11UJ411 03:02:36.0 +19:43:01 15.9 101 Positions are for J2000
Event circumstances last updated at 2021/10/03 01:34:15 UT
Marc W. Buie, Southwest Research Institute