Event between (447178) 05RO43 and star GA0720:04125572 with event index number of 2291246
Geocentric closest approach at 2028/02/24 22:46:36 UTC
J2000 position of star is 08:51:10.8 -16:28:25
Equinox of date position of star is 08:52:18.4 -16:33:57
Stellar brightness G=12.6,
use SENSEUP=16 with the MallinCam and and exposure
time of 250 milli-seconds with the QHY174 camera.
Star is 148 degrees from the moon.
Moon is 0% illuminated.
Apparent brightness V=18.9
Object is 14.4 AU from the Sun
and 13.6 AU from the Earth.
Apparent velocity is 21.4
km/sec on the sky relative to the star, or,
7.8 arcsec/hr.
The 1-sigma error in the time of the event is 107 seconds.
The 1-sigma cross-track error in the shadow position is
1656 km.
The object has an absolute magnitude Hv=7.2
Diameter=208.9 km assuming a 5% albedo -- 10.4 sec chord
Diameter=85.3 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is CENTAURR
Star training set for 447178, (2028/02/24 22:50UT) Object RA Dec mag sep mel Adhara 06:59:44.0 -29:00:44 1.5 28.70 121 Alphard 09:28:58.3 -08:46:55 2.0 11.83 160 PPM 220843 08:57:52.6 -16:49:06 5.5 1.31 149 PPM 220662 08:50:54.5 -16:08:17 8.3 0.58 149 PPM 220729 08:53:34.5 -16:37:48 9.6 0.27 149 447178 08:52:29.2 -16:34:50 12.6 149 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 447178, (2028/02/24 22:50UT) Object RA Dec mag sep mel Adhara 06:58:37.6 -28:58:19 1.5 28.70 121 Alphard 09:27:35.2 -08:39:30 2.0 11.83 160 PPM 220843 08:56:34.1 -16:42:32 5.5 1.31 149 PPM 220662 08:49:35.9 -16:01:55 8.3 0.58 149 PPM 220729 08:52:16.1 -16:31:22 9.6 0.27 149 447178 08:51:10.8 -16:28:25 12.6 148 Positions are for J2000
Event circumstances last updated at 2024/04/18 03:51:41 UT
Marc W. Buie, Southwest Research Institute