Event between (469505) 03FE128 and star GA0720:05950644 with event index number of 1099365
Geocentric closest approach at 2021/05/19 14:01:34 UTC
J2000 position of star is 16:12:09.4 -17:42:38
Equinox of date position of star is 16:13:23.0 -17:45:50
Stellar brightness G=14.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 98 degrees from the moon.
Moon is 48% illuminated.
TNO apparent brightness V=22.0
TNO is 36.3 AU from the Sun
and 35.3 AU from the Earth.
The TNO is moving 23.8
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 94 seconds.
The 1-sigma cross-track error in the shadow position is
1390 km.
The TNO has an absolute magnitude Hv=6.4
Diameter=320.6 km assuming a 5% albedo -- 13.5 sec chord
Diameter=130.9 km assuming a 30% albedo -- 5.5 sec chord
Dynamical classification is 2:1E
Star training set for 469505, (2021/05/19 14:02UT) Object RA Dec mag sep mel Antares 16:30:43.3 -26:28:39 0.9 9.59 104 8Bet1Sco 16:06:41.0 -19:51:44 2.6 2.63 97 PPM 231413 16:15:53.5 -18:35:20 6.1 1.02 99 PPM 231321 16:12:29.9 -18:10:15 8.1 0.46 98 PPM 231326 16:12:46.7 -18:03:17 9.3 0.32 98 469505 16:13:23.3 -17:45:51 14.4 98 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 469505, (2021/05/19 14:02UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 9.59 104 8Bet1Sco 16:05:26.2 -19:48:20 2.6 2.63 97 PPM 231413 16:14:39.1 -18:32:11 6.1 1.02 99 PPM 231321 16:11:15.8 -18:07:00 8.1 0.46 98 PPM 231326 16:11:32.7 -18:00:03 9.3 0.32 98 469505 16:12:09.4 -17:42:38 14.4 98 Positions are for J2000
Event circumstances last updated at 2021/04/25 22:58:38 UT
Marc W. Buie, Southwest Research Institute