Event between 13EM149 and star GA0740:05337297 with event index number of 1032668
Geocentric closest approach at 2021/01/12 19:45:15 UTC
J2000 position of star is 15:02:08.8 -14:55:05
Equinox of date position of star is 15:03:18.6 -14:59:59
Stellar brightness G=14.0,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 61 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=23.3
TNO is 43.3 AU from the Sun
and 43.7 AU from the Earth.
The TNO is moving 17.5
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 91 seconds.
The 1-sigma cross-track error in the shadow position is
1583 km.
The TNO has an absolute magnitude Hv=6.8
Diameter=264.2 km assuming a 5% albedo -- 15.1 sec chord
Diameter=107.9 km assuming a 30% albedo -- 6.2 sec chord
Dynamical classification is CLASSICAL
Star training set for 13EM149, (2021/01/12 19:45UT) Object RA Dec mag sep mel Antares 16:30:42.0 -26:28:37 0.9 23.38 38 27Bet Lib 15:18:08.5 -09:27:33 2.6 6.62 59 21Nu Lib 15:07:48.2 -16:20:14 5.2 1.72 59 PPM 229632 15:02:05.6 -15:06:31 8.3 0.31 61 PPM 229670 15:03:48.5 -14:52:57 8.7 0.17 61 13EM149 15:03:18.8 -15:00:00 14.0 60 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 13EM149, (2021/01/12 19:45UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 23.38 38 27Bet Lib 15:17:00.3 -09:22:59 2.6 6.62 59 21Nu Lib 15:06:37.6 -16:15:25 5.2 1.72 59 PPM 229632 15:00:55.6 -15:01:34 8.3 0.31 61 PPM 229670 15:02:38.5 -14:48:04 8.7 0.17 61 13EM149 15:02:08.8 -14:55:05 14.0 61 Positions are for J2000
Event circumstances last updated at 2020/12/16 22:06:36 UT
Marc W. Buie, Southwest Research Institute