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MOC

This document describes the Multi-Order Coverage map method (MOC) to specify arbitrary coverages for sky regions and/or time coverages and potentially other dimensions. The goal is to be able to provide a very fast comparison mechanism between coverages. The mechanism is based on a discretization of space and time dimensions. The system is based on the definition of a specific storage of the map coverage using predefined cells hierarchically grouped which makes it easy to produce and use for exploring astronomical collections. There are already a few applications and libraries which are taking advantage of this new standard.

Document Status

Latest Stable

The current IVOA Recommendation is REC-2.0. Prior versions are available on the IVOA Documents page.

Making Changes

Changes to this document are made via pull requests to the master branch of this repository. A PDF preview of the latest master version is available by clicking the badge on top.

When cloning your fork of this repository, use --recurse-submodules to include its submodules.

git clone --recurse-submodules https://github.com/[your github user]/MOC.git

Then: run "make" and hope you have all the necessary tools installed.

More more information, see the ivoatex README and the IVOA note IVOATeX Document Preparation System.

License

Creative Commons License
The IVOA Architecture document is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.