Journal
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
Volume 117, Issue 833, Pages 757-771Publisher
IOP Publishing Ltd
DOI: 10.1086/431367
Keywords
-
Categories
Ask authors/readers for more resources
Construction of an all- sky microarcsecond astrometric grid is an essential preliminary step toward global astrometry with the Space Interferometry Mission ( SIM). The general setup of the global astrometry problem is given, and fast, robust algorithms to solve the problem are described. The results of extensive numerical simulations are used to outline the conditions necessary to achieve the performance goal of absolute astrometric accuracy. Rigorous computation of the global covariance matrix makes it possible to correctly interpret and utilize the SIM data. We formulate and resolve the new issue of the basic performance uncertainty of a single astrometric mission.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available