Event between 09JE19 and star GA0960:04090969 with event index number of 2363620
Geocentric closest approach at 2023/03/18 18:26:47 UTC
J2000 position of star is 14:56:03.6 +06:10:04
Equinox of date position of star is 14:57:11.2 +06:04:37
Stellar brightness G=15.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 99 degrees from the moon.
Moon is 12% illuminated.
TNO apparent brightness V=21.4
TNO is 29.4 AU from the Sun
and 28.7 AU from the Earth.
The TNO is moving 17.9
km/sec on the sky relative to the star, or,
3.1 arcsec/hr.
The 1-sigma error in the time of the event is 82 seconds.
The 1-sigma cross-track error in the shadow position is
1592 km.
The TNO has an absolute magnitude Hv=6.6
Diameter=289.7 km assuming a 5% albedo -- 16.2 sec chord
Diameter=118.3 km assuming a 30% albedo -- 6.6 sec chord
Dynamical classification is 3:2E
Star training set for 09JE19, (2023/03/18 18:21UT) Object RA Dec mag sep mel Arcturus 14:16:43.4 +19:03:48 0.0 16.30 112 Unukalhai 15:45:24.8 +06:21:15 2.6 11.98 88 PPM 161289 15:08:49.5 +05:24:36 6.2 2.96 96 PPM 161061 14:54:48.8 +06:08:53 6.6 0.60 99 PPM 161102 14:57:25.1 +06:04:00 9.6 0.05 99 09JE19 14:57:12.6 +06:04:30 15.5 99 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 09JE19, (2023/03/18 18:21UT) Object RA Dec mag sep mel Arcturus 14:15:38.0 +19:10:14 0.0 16.30 112 Unukalhai 15:44:16.3 +06:25:33 2.6 11.98 88 PPM 161289 15:07:40.3 +05:29:53 6.2 2.96 96 PPM 161061 14:53:39.8 +06:14:30 6.6 0.60 99 PPM 161102 14:56:16.0 +06:09:34 9.6 0.05 99 09JE19 14:56:03.6 +06:10:04 15.5 99 Positions are for J2000
Event circumstances last updated at 2022/09/26 02:27:43 UT
Marc W. Buie, Southwest Research Institute