Event between 12JD68 and star GA0940:04614245 with event index number of 1557531
Geocentric closest approach at 2021/08/04 12:39:16 UTC
J2000 position of star is 16:59:02.3 +05:30:19
Equinox of date position of star is 17:00:05.1 +05:28:27
Stellar brightness G=15.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 148 degrees from the moon.
Moon is 16% illuminated.
TNO apparent brightness V=22.7
TNO is 28.0 AU from the Sun
and 27.5 AU from the Earth.
The TNO is moving 13.7
km/sec on the sky relative to the star, or,
2.5 arcsec/hr.
The 1-sigma error in the time of the event is 133 seconds.
The 1-sigma cross-track error in the shadow position is
2593 km.
The TNO has an absolute magnitude Hv=8.1
Diameter=141.3 km assuming a 5% albedo -- 10.3 sec chord
Diameter=57.7 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is 3:2E+6:4II
Star training set for 12JD68, (2021/08/04 12:39UT) Object RA Dec mag sep mel Antares 16:30:44.1 -26:28:41 0.9 32.73 164 60Bet Oph 17:44:32.4 +04:33:35 2.8 11.10 151 47 Her 16:51:22.4 +07:12:44 5.6 2.78 146 PPM 163306 16:58:23.6 +06:10:45 8.2 0.82 147 PPM 163365 17:01:16.3 +05:36:33 9.7 0.32 148 12JD68 17:00:06.0 +05:28:26 15.7 148 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 12JD68, (2021/08/04 12:39UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 32.73 164 60Bet Oph 17:43:28.3 +04:34:06 2.8 11.10 151 47 Her 16:50:19.5 +07:14:53 5.6 2.78 146 PPM 163306 16:57:20.2 +06:12:41 8.2 0.82 147 PPM 163365 17:00:12.7 +05:38:23 9.7 0.32 148 12JD68 16:59:02.3 +05:30:19 15.7 148 Positions are for J2000
Event circumstances last updated at 2021/04/21 22:33:13 UT
Marc W. Buie, Southwest Research Institute