Event between (120216) 04EW95 and star GA0420:18997076 with event index number of 2141321
Geocentric closest approach at 2028/07/21 15:56:04 UTC
J2000 position of star is 16:38:17.1 -46:24:05
Equinox of date position of star is 16:40:00.4 -46:26:48
Stellar brightness G=15.1,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 136 degrees from the moon.
Moon is 0% illuminated.
Apparent brightness V=21.2
Object is 27.8 AU from the Sun
and 27.2 AU from the Earth.
Apparent velocity is 16.1
km/sec on the sky relative to the star, or,
2.9 arcsec/hr.
The 1-sigma error in the time of the event is 212 seconds.
The 1-sigma cross-track error in the shadow position is
2936 km.
The object has an absolute magnitude Hv=6.6
Diameter=287.1 km assuming a 5% albedo -- 18.0 sec chord
Diameter=117.2 km assuming a 30% albedo -- 7.4 sec chord
Dynamical classification is 3:2E
Star training set for 120216, (2028/07/21 15:54UT) Object RA Dec mag sep mel Antares 16:31:09.8 -26:29:34 0.9 20.05 136 Eta Lup 16:02:01.4 -38:28:32 2.8 10.65 130 PPM 322069 16:45:08.8 -46:07:19 6.3 0.89 137 PPM 321961 16:40:04.9 -46:12:35 6.6 0.25 136 PPM 321956 16:39:50.9 -46:18:10 9.0 0.18 136 120216 16:40:22.6 -46:27:22 15.1 136 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, (2028/07/21 15:54UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 20.05 136 Eta Lup 16:00:07.3 -38:23:48 2.8 10.65 130 PPM 322069 16:43:03.5 -46:04:13 6.3 0.89 137 PPM 321961 16:37:59.8 -46:09:17 6.6 0.25 136 PPM 321956 16:37:45.7 -46:14:52 9.0 0.18 136 120216 16:38:17.1 -46:24:05 15.1 136 Positions are for J2000
Event circumstances last updated at 2023/07/07 03:18:05 UT
Marc W. Buie, Southwest Research Institute