Event between (472651) 15DB216 and star GA0340:25771988 with event index number of 2694696
Geocentric closest approach at 2029/02/23 23:32:11 UTC
J2000 position of star is 16:05:47.1 -55:06:41
Equinox of date position of star is 16:07:43.8 -55:10:34
Stellar brightness G=15.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 141 degrees from the moon.
Moon is 73% illuminated.
Apparent brightness V=20.0
Object is 12.9 AU from the Sun
and 13.0 AU from the Earth.
Apparent velocity is 22.8
km/sec on the sky relative to the star, or,
8.7 arcsec/hr.
The 1-sigma error in the time of the event is 65 seconds.
The 1-sigma cross-track error in the shadow position is
2222 km.
The object has an absolute magnitude Hv=8.5
Diameter=117.5 km assuming a 5% albedo -- 5.2 sec chord
Diameter=48.0 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is CENTAURR
Star training set for 472651, (2029/02/23 23:33UT) Object RA Dec mag sep mel PPM 360911 14:41:38.6 -60:57:17 0.0 12.72 129 Bet TrA 15:57:44.5 -63:31:00 2.8 8.43 135 PPM 344489 16:03:23.6 -54:39:29 6.4 0.86 141 PPM 344547 16:07:18.0 -55:13:05 8.5 0.12 141 PPM 344556 16:07:47.9 -55:07:06 9.6 0.08 141 472651 16:08:06.0 -55:11:18 15.6 141 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, (2029/02/23 23:33UT) Object RA Dec mag sep mel PPM 360911 14:39:23.9 -60:49:51 0.0 12.72 129 Bet TrA 15:55:07.9 -63:26:00 2.8 8.43 135 PPM 344489 16:01:06.2 -54:34:42 6.4 0.86 141 PPM 344547 16:04:59.2 -55:08:26 8.5 0.12 141 PPM 344556 16:05:29.2 -55:02:29 9.6 0.08 141 472651 16:05:47.1 -55:06:41 15.6 141 Positions are for J2000
Event circumstances last updated at 2024/06/26 21:31:28 UT
Marc W. Buie, Southwest Research Institute