Zonal Error Propagation for JMAPS

Details Zonal Error Propagation for JMAPS Zonal Error Propagation for JMAPS

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21460009h&link_type=abstract

American Astronomical Society, AAS Meeting #214, #600.09

Astronomy and Astrophysics

Astronomy

Scientific paper

Propagation of accidental zonal errors of parallax is analyzed for J-MAPS. A method based on orthogonal spherical functions and a simplified setup of observational grid equations is proposed. Using this method, a full-scale simulation can be performed for a limited number of large-scale zonal errors, including the zero-point error, on a regular personal computer. Covariances of parallax zonal errors and their dependence on the density of grid quasars, the density and overlap of grid stars, the observing scenario, etc., can be investigated by this technique and the accompanying Matlab software.

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