Event between (447178) 05RO43 and star GA0720:04207370 with event index number of 2291220
Geocentric closest approach at 2027/12/08 18:54:55 UTC
J2000 position of star is 09:03:49.4 -16:47:57
Equinox of date position of star is 09:04:57.3 -16:53:48
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 125 degrees from the moon.
Moon is 74% illuminated.
Apparent brightness V=19.1
Object is 14.5 AU from the Sun
and 14.2 AU from the Earth.
Apparent velocity is 11.9
km/sec on the sky relative to the star, or,
4.2 arcsec/hr.
The 1-sigma error in the time of the event is 122 seconds.
The 1-sigma cross-track error in the shadow position is
2791 km.
The object has an absolute magnitude Hv=7.2
Diameter=208.9 km assuming a 5% albedo -- 18.8 sec chord
Diameter=85.3 km assuming a 30% albedo -- 7.7 sec chord
Dynamical classification is CENTAURR
Star training set for 447178, (2027/12/08 18:56UT) Object RA Dec mag sep mel Adhara 06:59:43.5 -29:00:42 1.5 31.17 97 Alphard 09:28:57.6 -08:46:52 2.0 9.99 131 PPM 220890 09:00:02.6 -16:14:28 5.8 1.39 124 PPM 221019 09:05:59.4 -17:20:58 7.5 0.48 125 PPM 220996 09:04:56.2 -16:55:30 9.3 0.05 125 447178 09:05:07.5 -16:54:40 16.6 126 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, (2027/12/08 18:56UT) Object RA Dec mag sep mel Adhara 06:58:37.6 -28:58:19 1.5 31.17 97 Alphard 09:27:35.2 -08:39:30 2.0 9.99 131 PPM 220890 08:58:44.3 -16:07:53 5.8 1.39 124 PPM 221019 09:04:41.5 -17:14:13 7.5 0.48 125 PPM 220996 09:03:38.2 -16:48:47 9.3 0.05 125 447178 09:03:49.4 -16:47:57 16.6 125 Positions are for J2000
Event circumstances last updated at 2024/04/18 03:49:50 UT
Marc W. Buie, Southwest Research Institute