Corrections between UCAC3 and PPMXL

Differences between UCAC3 and PPMXL in positions and proper motions, on an all-sky one-degree grid. At each gridpoint we give the differences X(PPMXL)- X(UCAC3) averaged over all stars in a sqrt(2)/2-degrees environment around the gridpoint given. The corrections given here should bring UCAC3 based astrometry to the ICRS.

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Metadata Access
Creator GAVO Data Center
Publisher The GAVO DC team
Publication Year 2009
OpenAccess true
Contact GAVO Data Center Team <gavo(at)>
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Galactic and extragalactic Astronomy; Natural Sciences; Observational Astronomy; Physics