Event between (469708) 05GE187 and star GA0820:05849399 with event index number of 1092902
Geocentric closest approach at 2021/05/13 15:02:52 UTC
J2000 position of star is 17:18:54.6 -07:48:20
Equinox of date position of star is 17:20:04.0 -07:49:35
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 163 degrees from the moon.
Moon is 3% illuminated.
TNO apparent brightness V=22.1
TNO is 27.6 AU from the Sun
and 26.7 AU from the Earth.
The TNO is moving 20.4
km/sec on the sky relative to the star, or,
3.8 arcsec/hr.
The 1-sigma error in the time of the event is 58 seconds.
The 1-sigma cross-track error in the shadow position is
1016 km.
The TNO has an absolute magnitude Hv=7.6
Diameter=184.5 km assuming a 5% albedo -- 9.0 sec chord
Diameter=75.3 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is 3:2E
Star training set for 469708, (2021/05/13 15:03UT) Object RA Dec mag sep mel Antares 16:30:43.2 -26:28:39 0.9 22.03 175 35Eta Oph 17:11:36.3 -15:45:00 2.6 8.19 171 PPM 200511 17:17:51.5 -06:16:01 6.0 1.65 162 PPM 200560 17:21:09.8 -08:02:42 8.2 0.35 163 PPM 200552 17:20:27.7 -07:35:55 9.5 0.25 163 469708 17:20:04.1 -07:49:35 16.8 163 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 469708, (2021/05/13 15:03UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 22.03 175 35Eta Oph 17:10:22.7 -15:43:29 2.6 8.19 171 PPM 200511 17:16:42.8 -06:14:42 6.0 1.65 162 PPM 200560 17:20:00.2 -08:01:28 8.2 0.35 163 PPM 200552 17:19:18.2 -07:34:40 9.5 0.25 163 469708 17:18:54.6 -07:48:20 16.8 163 Positions are for J2000
Event circumstances last updated at 2021/04/25 22:58:27 UT
Marc W. Buie, Southwest Research Institute