Event between (120216) 04EW95 and star GA0440:17711321 with event index number of 2226249
Geocentric closest approach at 2028/10/05 14:38:15 UTC
J2000 position of star is 16:40:01.1 -45:38:02
Equinox of date position of star is 16:41:43.7 -45:40:42
Stellar brightness G=14.1,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 137 degrees from the moon.
Moon is 96% illuminated.
Apparent brightness V=21.3
Object is 27.9 AU from the Sun
and 28.3 AU from the Earth.
Apparent velocity is 21.9
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 176 seconds.
The 1-sigma cross-track error in the shadow position is
2287 km.
The object has an absolute magnitude Hv=6.6
Diameter=287.1 km assuming a 5% albedo -- 13.3 sec chord
Diameter=117.2 km assuming a 30% albedo -- 5.4 sec chord
Dynamical classification is 3:2E
Star training set for 120216, (2028/10/05 14:39UT) Object RA Dec mag sep mel Antares 16:31:10.6 -26:29:36 0.9 19.32 145 Eta Lup 16:02:02.3 -38:28:34 2.8 10.34 147 PPM 322069 16:45:09.7 -46:07:21 6.3 0.69 136 PPM 322020 16:42:37.2 -46:00:42 7.4 0.34 136 PPM 322009 16:42:11.7 -45:37:30 9.5 0.06 137 120216 16:42:06.6 -45:41:17 14.1 136 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, (2028/10/05 14:39UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 19.32 145 Eta Lup 16:00:07.3 -38:23:48 2.8 10.34 147 PPM 322069 16:43:03.5 -46:04:13 6.3 0.69 136 PPM 322020 16:40:31.3 -45:57:29 7.4 0.34 136 PPM 322009 16:40:06.3 -45:34:15 9.5 0.06 137 120216 16:40:01.1 -45:38:02 14.1 137 Positions are for J2000
Event circumstances last updated at 2023/07/07 03:30:36 UT
Marc W. Buie, Southwest Research Institute