Event between (47932) 00GN171 and star GA0600:09311422 with event index number of 1122140
Geocentric closest approach at 2021/05/19 00:24:58 UTC
J2000 position of star is 16:33:59.0 -29:58:37
Equinox of date position of star is 16:35:18.6 -30:01:10
Stellar brightness G=10.4,
use SENSEUP=4 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 113 degrees from the moon.
Moon is 42% illuminated.
TNO apparent brightness V=20.8
TNO is 29.1 AU from the Sun
and 28.2 AU from the Earth.
The TNO is moving 22.5
km/sec on the sky relative to the star, or,
4.0 arcsec/hr.
The 1-sigma error in the time of the event is 45 seconds.
The 1-sigma cross-track error in the shadow position is
1022 km.
The TNO has an absolute magnitude Hv=6.2
Diameter=346.7 km assuming a 5% albedo -- 15.4 sec chord
Diameter=141.6 km assuming a 30% albedo -- 6.3 sec chord
Dynamical classification is 3:2E
Star training set for 47932, (2021/05/19 00:25UT) Object RA Dec mag sep mel Antares 16:30:43.3 -26:28:39 0.9 3.69 111 23Tau Sco 16:37:13.0 -28:15:31 2.8 1.81 113 PPM 265498 16:26:00.6 -29:45:06 5.2 2.04 111 PPM 265668 16:35:30.1 -29:52:26 8.5 0.15 113 PPM 265659 16:34:43.7 -29:59:28 9.2 0.13 113 47932 16:35:20.1 -30:01:13 10.4 113 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 47932, (2021/05/19 00:25UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 3.69 111 23Tau Sco 16:35:52.9 -28:12:58 2.8 1.81 113 PPM 265498 16:24:39.9 -29:42:14 5.2 2.04 111 PPM 265668 16:34:09.1 -29:49:51 8.5 0.15 113 PPM 265659 16:33:22.6 -29:56:51 9.2 0.13 113 47932 16:33:59.0 -29:58:37 10.4 113 Positions are for J2000
Event circumstances last updated at 2020/12/24 01:10:02 UT
Marc W. Buie, Southwest Research Institute