Event between (120216) 04EW95 and star GA0420:21677156 with event index number of 2740306
Geocentric closest approach at 2029/04/21 19:56:22 UTC
J2000 position of star is 17:06:39.9 -47:36:34
Equinox of date position of star is 17:08:25.7 -47:38:21
Stellar brightness G=15.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 131 degrees from the moon.
Moon is 50% illuminated.
Apparent brightness V=21.2
Object is 28.0 AU from the Sun
and 27.4 AU from the Earth.
Apparent velocity is 17.3
km/sec on the sky relative to the star, or,
3.1 arcsec/hr.
The 1-sigma error in the time of the event is 254 seconds.
The 1-sigma cross-track error in the shadow position is
4053 km.
The object has an absolute magnitude Hv=6.6
Diameter=287.1 km assuming a 5% albedo -- 16.8 sec chord
Diameter=117.2 km assuming a 30% albedo -- 6.9 sec chord
Dynamical classification is 3:2E
Star training set for 120216, (2029/04/21 19:55UT) Object RA Dec mag sep mel Antares 16:31:12.6 -26:29:40 0.9 22.41 127 The Sco 17:39:25.6 -43:00:48 1.9 7.09 138 PPM 322556 17:05:52.8 -47:11:58 6.4 0.67 131 PPM 322600 17:08:53.5 -48:02:58 7.9 0.40 131 PPM 322589 17:08:22.1 -47:27:25 9.7 0.21 131 120216 17:08:51.8 -47:38:47 15.6 132 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, (2029/04/21 19:55UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 22.41 127 The Sco 17:37:19.2 -42:59:52 1.9 7.09 138 PPM 322556 17:03:41.6 -47:09:38 6.4 0.67 131 PPM 322600 17:06:41.0 -48:00:45 7.9 0.40 131 PPM 322589 17:06:10.4 -47:25:11 9.7 0.21 131 120216 17:06:39.9 -47:36:34 15.6 131 Positions are for J2000
Event circumstances last updated at 2023/07/08 02:27:57 UT
Marc W. Buie, Southwest Research Institute