Event between (500833) 13GD137 and star GA0760:05097481 with event index number of 1169063
Geocentric closest approach at 2021/06/09 21:05:29 UTC
J2000 position of star is 14:56:56.7 -13:59:49
Equinox of date position of star is 14:58:06.4 -14:04:51
Stellar brightness G=11.1,
use SENSEUP=8 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 153 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=23.9
TNO is 35.7 AU from the Sun
and 34.9 AU from the Earth.
The TNO is moving 19.5
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 473 seconds.
The 1-sigma cross-track error in the shadow position is
4813 km.
The TNO has an absolute magnitude Hv=8.3
Diameter=131.8 km assuming a 5% albedo -- 6.7 sec chord
Diameter=53.8 km assuming a 30% albedo -- 2.8 sec chord
Dynamical classification is 3:2E
Star training set for 500833, (2021/06/09 21:05UT) Object RA Dec mag sep mel Spica 13:26:19.5 -11:16:21 1.0 22.56 131 27Bet Lib 15:18:09.8 -09:27:39 2.6 6.74 155 7Mu Lib 14:50:29.8 -14:14:13 5.8 1.86 151 PPM 229503 14:57:04.0 -13:59:11 8.0 0.27 153 PPM 229525 14:58:05.1 -14:19:55 9.3 0.25 153 500833 14:58:07.7 -14:04:56 11.1 153 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 500833, (2021/06/09 21:05UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 22.56 131 27Bet Lib 15:17:00.3 -09:22:59 2.6 6.74 155 7Mu Lib 14:49:18.9 -14:08:56 5.8 1.86 151 PPM 229503 14:55:53.2 -13:54:03 8.0 0.27 153 PPM 229525 14:56:54.0 -14:14:48 9.3 0.25 153 500833 14:56:56.7 -13:59:49 11.1 153 Positions are for J2000
Event circumstances last updated at 2021/01/22 20:53:12 UT
Marc W. Buie, Southwest Research Institute