Specification for the Siril HEALpixel Catalog Format
Adrian J. E. Knagg-Baugh, Ian Cass, C\'ecile Melis, Cyril, Richard
TL;DR
This paper defines a standardized catalog format for HEALpixel-based astronomical data, enhancing storage efficiency and query speed for large datasets like Gaia DR3.
Contribution
It introduces a structured, space-optimized catalog format with indexing and search strategies tailored for HEALpixel data in astronomy.
Findings
Supports efficient storage and querying of large HEALpixel catalogs
Includes a fixed header, index, and structured data records
Optimized for space and speed in astronomical data applications
Abstract
This document specifies the structure of the Siril Catalog Format, designed to support efficient storage and querying of nested HEALpixel based astronomical catalogs such as Gaia DR3. The format includes a fixed length header, an index for rapid look-up, and structured data records optimized for space and speed. The document also outlines recommended search strategies for utilizing the format effectively.
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