Event between 10JJ124 and star GA0740:19617706 with event index number of 2097619
Geocentric closest approach at 2021/10/18 00:58:49 UTC
J2000 position of star is 18:32:35.2 -14:40:17
Equinox of date position of star is 18:33:49.2 -14:39:14
Stellar brightness G=17.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 78 degrees from the moon.
Moon is 93% illuminated.
TNO apparent brightness V=20.9
TNO is 25.5 AU from the Sun
and 25.8 AU from the Earth.
The TNO is moving 15.0
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 354 seconds.
The 1-sigma cross-track error in the shadow position is
4380 km.
The TNO has an absolute magnitude Hv=6.6
Diameter=284.5 km assuming a 5% albedo -- 18.9 sec chord
Diameter=116.1 km assuming a 30% albedo -- 7.7 sec chord
Dynamical classification is CENTAURS
Star training set for 10JJ124, (2021/10/18 00:59UT) Object RA Dec mag sep mel Antares 16:30:44.8 -26:28:43 0.9 31.03 105 Nunki 18:56:36.9 -26:16:04 2.0 12.78 73 PPM 234686 18:33:58.0 -14:50:53 5.1 0.20 78 PPM 234676 18:33:35.2 -14:37:38 6.8 0.06 78 10JJ124 18:33:49.7 -14:39:14 17.0 78 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 10JJ124, (2021/10/18 00:59UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 31.03 105 Nunki 18:55:15.9 -26:17:49 2.0 12.78 73 PPM 234686 18:32:43.3 -14:51:57 5.1 0.20 78 PPM 234676 18:32:20.7 -14:38:40 6.8 0.06 78 10JJ124 18:32:35.2 -14:40:17 17.0 78 Positions are for J2000
Event circumstances last updated at 2021/08/26 00:57:04 UT
Marc W. Buie, Southwest Research Institute