Event between (120216) 04EW95 and star GA0420:19780801 with event index number of 2141181
Geocentric closest approach at 2028/05/28 08:12:36 UTC
J2000 position of star is 16:46:12.8 -46:41:57
Equinox of date position of star is 16:47:56.8 -46:44:24
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 132 degrees from the moon.
Moon is 19% illuminated.
Apparent brightness V=21.1
Object is 27.8 AU from the Sun
and 26.9 AU from the Earth.
Apparent velocity is 23.3
km/sec on the sky relative to the star, or,
4.3 arcsec/hr.
The 1-sigma error in the time of the event is 185 seconds.
The 1-sigma cross-track error in the shadow position is
2355 km.
The object has an absolute magnitude Hv=6.6
Diameter=287.1 km assuming a 5% albedo -- 12.5 sec chord
Diameter=117.2 km assuming a 30% albedo -- 5.1 sec chord
Dynamical classification is 3:2E
Star training set for 120216, (2028/05/28 08:11UT) Object RA Dec mag sep mel Antares 16:31:09.2 -26:29:33 0.9 20.54 131 The Sco 17:39:21.8 -43:00:46 1.9 9.77 142 PPM 322069 16:45:08.2 -46:07:18 6.3 0.83 132 PPM 322114 16:46:39.5 -46:50:12 8.0 0.30 132 PPM 322191 16:49:43.2 -46:39:19 9.7 0.26 133 120216 16:48:18.5 -46:44:55 16.6 133 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 120216, (2028/05/28 08:11UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 20.54 131 The Sco 17:37:19.2 -42:59:52 1.9 9.77 142 PPM 322069 16:43:03.5 -46:04:13 6.3 0.83 132 PPM 322114 16:44:33.8 -46:47:10 8.0 0.30 132 PPM 322191 16:47:37.6 -46:36:25 9.7 0.26 133 120216 16:46:12.8 -46:41:57 16.6 132 Positions are for J2000
Event circumstances last updated at 2023/07/07 03:10:16 UT
Marc W. Buie, Southwest Research Institute