Event between (447178) 05RO43 and star GA0740:03546068 with event index number of 2290684
Geocentric closest approach at 2025/11/18 04:13:43 UTC
J2000 position of star is 08:01:01.1 -15:42:45
Equinox of date position of star is 08:02:07.9 -15:46:51
Stellar brightness G=16.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 85 degrees from the moon.
Moon is 4% illuminated.
Apparent brightness V=19.4
Object is 15.4 AU from the Sun
and 15.1 AU from the Earth.
Apparent velocity is 14.9
km/sec on the sky relative to the star, or,
4.9 arcsec/hr.
The 1-sigma error in the time of the event is 57 seconds.
The 1-sigma cross-track error in the shadow position is
1430 km.
The object has an absolute magnitude Hv=7.2
Diameter=208.9 km assuming a 5% albedo -- 15.0 sec chord
Diameter=85.3 km assuming a 30% albedo -- 6.1 sec chord
Dynamical classification is CENTAURR
Star training set for 447178, (2025/11/18 04:15UT) Object RA Dec mag sep mel Sirius 06:46:17.4 -16:45:08 -1.5 18.24 102 15Rho Pup 08:08:38.8 -24:22:49 2.8 8.73 82 PPM 219722 08:10:39.6 -16:19:36 5.9 2.10 83 PPM 219526 08:02:05.5 -15:48:44 7.7 0.04 85 447178 08:02:12.3 -15:47:08 16.5 85 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, (2025/11/18 04:15UT) Object RA Dec mag sep mel Sirius 06:45:08.0 -16:43:26 -1.5 18.24 102 15Rho Pup 08:07:32.5 -24:18:14 2.8 8.73 82 PPM 219722 08:09:28.5 -16:14:57 5.9 2.10 83 PPM 219526 08:00:54.3 -15:44:21 7.7 0.04 85 447178 08:01:01.1 -15:42:45 16.5 85 Positions are for J2000
Event circumstances last updated at 2024/04/18 03:41:28 UT
Marc W. Buie, Southwest Research Institute