Event between (471155) 10GF65 and star GA0540:13840738 with event index number of 1085316
Geocentric closest approach at 2021/05/13 21:19:09 UTC
J2000 position of star is 16:58:52.2 -35:18:52
Equinox of date position of star is 17:00:16.2 -35:20:42
Stellar brightness G=13.7,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 168 degrees from the moon.
Moon is 4% illuminated.
TNO apparent brightness V=20.7
TNO is 22.8 AU from the Sun
and 21.9 AU from the Earth.
The TNO is moving 19.8
km/sec on the sky relative to the star, or,
4.5 arcsec/hr.
The 1-sigma error in the time of the event is 309 seconds.
The 1-sigma cross-track error in the shadow position is
1350 km.
The TNO has an absolute magnitude Hv=7.1
Diameter=229.1 km assuming a 5% albedo -- 11.5 sec chord
Diameter=93.5 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is CENTAURR
Star training set for 471155, (2021/05/13 21:19UT) Object RA Dec mag sep mel Antares 16:30:43.2 -26:28:39 0.9 10.89 173 26Eps Sco 16:51:33.1 -34:19:48 2.3 2.06 169 PPM 295772 17:02:02.7 -35:57:53 5.7 0.71 167 PPM 295845 17:05:20.1 -35:18:08 8.1 1.03 168 PPM 295683 16:57:43.6 -35:30:55 9.0 0.55 168 PPM 295771 17:02:02.0 -35:47:08 9.0 0.57 167 471155 17:00:17.4 -35:20:44 13.7 168 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 471155, (2021/05/13 21:19UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 10.89 173 26Eps Sco 16:50:08.8 -34:17:41 2.3 2.06 169 PPM 295772 17:00:37.0 -35:56:04 5.7 0.71 167 PPM 295845 17:03:54.8 -35:16:26 8.1 1.03 168 PPM 295683 16:56:18.3 -35:28:59 9.0 0.55 168 PPM 295771 17:00:36.4 -35:45:19 9.0 0.57 167 471155 16:58:52.2 -35:18:52 13.7 168 Positions are for J2000
Event circumstances last updated at 2021/01/21 20:45:45 UT
Marc W. Buie, Southwest Research Institute