Event between (447178) 05RO43 and star GA0780:01185963 with event index number of 2289596
Geocentric closest approach at 2022/09/09 10:07:55 UTC
J2000 position of star is 06:39:08.5 -11:14:25
Equinox of date position of star is 06:40:11.6 -11:15:42
Stellar brightness G=15.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 118 degrees from the moon.
Moon is 98% illuminated.
TNO apparent brightness V=20.0
TNO is 17.3 AU from the Sun
and 17.6 AU from the Earth.
The TNO is moving 25.6
km/sec on the sky relative to the star, or,
7.2 arcsec/hr.
The 1-sigma error in the time of the event is 38 seconds.
The 1-sigma cross-track error in the shadow position is
935 km.
The TNO has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 8.2 sec chord
Diameter=85.3 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is CENTAURR
Star training set for 447178, (2022/09/09 10:08UT) Object RA Dec mag sep mel Sirius 06:46:08.9 -16:44:54 -1.5 5.67 117 2Bet CMa 06:23:41.9 -17:58:07 2.0 7.80 111 PPM 217337 06:33:50.7 -11:11:04 6.4 1.56 116 PPM 217446 06:38:35.3 -11:29:11 8.5 0.46 117 PPM 217482 06:40:06.8 -11:17:26 8.9 0.04 118 447178 06:40:12.3 -11:15:43 15.4 118 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, (2022/09/09 10:08UT) Object RA Dec mag sep mel Sirius 06:45:08.0 -16:43:24 -1.5 5.67 117 2Bet CMa 06:22:42.0 -17:57:21 2.0 7.80 111 PPM 217337 06:32:46.9 -11:09:58 6.4 1.56 116 PPM 217446 06:37:31.6 -11:27:55 8.5 0.46 117 PPM 217482 06:39:03.0 -11:16:08 8.9 0.04 118 447178 06:39:08.5 -11:14:25 15.4 118 Positions are for J2000
Event circumstances last updated at 2022/06/06 23:51:41 UT
Marc W. Buie, Southwest Research Institute