Event between (550310) 12DD86 and star GA0780:06385633 with event index number of 2744245
Geocentric closest approach at 2029/04/17 20:57:50 UTC
J2000 position of star is 17:18:50.1 -10:15:12
Equinox of date position of star is 17:20:11.2 -10:16:39
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 163 degrees from the moon.
Moon is 14% illuminated.
Apparent brightness V=22.7
Object is 20.1 AU from the Sun
and 19.4 AU from the Earth.
Apparent velocity is 12.5
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 168 seconds.
The 1-sigma cross-track error in the shadow position is
1443 km.
The object has an absolute magnitude Hv=9.5
Diameter=75.2 km assuming a 5% albedo -- 6.2 sec chord
Diameter=30.7 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is CENTAURR
Star training set for 550310, (2029/04/17 21:06UT) Object RA Dec mag sep mel Antares 16:31:12.5 -26:29:40 0.9 19.95 177 35Eta Oph 17:12:03.6 -15:45:33 2.6 5.85 169 PPM 232685 17:11:25.2 -10:33:32 5.6 2.24 165 PPM 232903 17:20:17.5 -10:14:53 8.1 0.05 163 550310 17:20:27.1 -10:16:55 16.9 163 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 550310, (2029/04/17 21:06UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 19.95 177 35Eta Oph 17:10:22.7 -15:43:29 2.6 5.85 169 PPM 232685 17:09:48.0 -10:31:26 5.6 2.24 165 PPM 232903 17:18:40.4 -10:13:10 8.1 0.05 163 550310 17:18:50.1 -10:15:12 16.9 163 Positions are for J2000
Event circumstances last updated at 2024/06/26 21:34:40 UT
Marc W. Buie, Southwest Research Institute