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MOC - HEALPix Multi-Order Coverage map
Version 1.0

IVOA Proposed Recommendation 6 January 2014

Interest/Working Group:
Thomas Boch, Tom Donaldson, Daniel Durand, Pierre Fernique, Wil O'Mullane, Martin Reinecke, Mark Taylor
Pierre Fernique


This document describes the Multi-Order Coverage map method (MOC) to specify arbitrary sky regions. The goal is to be able to provide a very fast comparison mechanism between coverage maps. The mechanism is based on the HEALPix sky tessellation algorithm. It is essentially a simple way to map regions of the sky into hierarchically grouped predefined cells.

Status of this document

This is an IVOA Proposed Recommendation made available for public review.
It is appropriate to reference this document only as a recommended standard that is under review and which may be changed before it is accepted as a full recommendation.

Available formats: PDF, ODT

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