Event between (472651) 15DB216 and star GA0340:26341776 with event index number of 2720805
Geocentric closest approach at 2029/02/18 20:20:46 UTC
J2000 position of star is 16:04:57.7 -54:49:49
Equinox of date position of star is 16:06:53.9 -54:53:44
Stellar brightness G=16.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 133 degrees from the moon.
Moon is 25% illuminated.
Apparent brightness V=20.0
Object is 12.9 AU from the Sun
and 13.1 AU from the Earth.
Apparent velocity is 24.0
km/sec on the sky relative to the star, or,
9.1 arcsec/hr.
The 1-sigma error in the time of the event is 66 seconds.
The 1-sigma cross-track error in the shadow position is
2125 km.
The object has an absolute magnitude Hv=8.5
Diameter=117.5 km assuming a 5% albedo -- 5.0 sec chord
Diameter=48.0 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is CENTAURR
Star training set for 472651, (2029/02/18 20:23UT) Object RA Dec mag sep mel PPM 360911 14:41:38.9 -60:57:17 0.0 12.79 134 Bet TrA 15:57:44.4 -63:31:00 2.8 8.69 127 PPM 344489 16:03:23.6 -54:39:29 6.4 0.61 133 PPM 344547 16:07:17.9 -55:13:04 8.5 0.31 132 PPM 344563 16:08:12.8 -54:59:28 9.3 0.16 132 472651 16:07:15.9 -54:54:28 16.6 132 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 472651, (2029/02/18 20:23UT) Object RA Dec mag sep mel PPM 360911 14:39:24.2 -60:49:51 0.0 12.79 134 Bet TrA 15:55:07.9 -63:26:00 2.8 8.69 127 PPM 344489 16:01:06.2 -54:34:42 6.4 0.61 133 PPM 344547 16:04:59.2 -55:08:26 8.5 0.31 132 PPM 344563 16:05:54.4 -54:54:52 9.3 0.16 132 472651 16:04:57.7 -54:49:49 16.6 133 Positions are for J2000
Event circumstances last updated at 2024/06/26 21:31:16 UT
Marc W. Buie, Southwest Research Institute