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  • Getting Started
  • User Guide
  • Contributing
  • Project Details
  • Tutorials
  • GitHub

Section Navigation

Data structures and transformations

  • Constants (astropy.constants)
  • Units and Quantities (astropy.units)
  • N-Dimensional Datasets (astropy.nddata)
  • Data Tables (astropy.table)
  • Time and Dates (astropy.time)
  • Time Series (astropy.timeseries)
  • Astronomical Coordinate Systems (astropy.coordinates)
  • World Coordinate System (astropy.wcs)
  • Models and Fitting (astropy.modeling)
  • Uncertainties and Distributions (astropy.uncertainty)

File I/O

  • Overview of Astropy File I/O
  • High-level Unified File I/O
  • FITS File Handling (astropy.io.fits)
    • FITS Headers
    • Image Data
    • Table Data
    • Verification
    • Less Familiar Objects
    • Executable Scripts
    • Miscellaneous Features
    • Obtaining subsets from cloud-hosted FITS files
    • astropy.io.fits FAQ
    • Header Interface Transition Guide
    • astropy.io.fits History
    • Reference/API
  • Text Tables (astropy.io.ascii)
  • VOTable Handling (astropy.io.votable)
  • HDF5, Parquet, PyArrow CSV, YAML (astropy.io.misc)

Computations and utilities

  • Cosmological Calculations (astropy.cosmology)
  • Convolution and Filtering (astropy.convolution)
  • IERS data access (astropy.utils.iers)
  • Data Visualization (astropy.visualization)
  • Astrostatistics Tools (astropy.stats)
  • SAMP (Simple Application Messaging Protocol) (astropy.samp)

Nuts and bolts

  • Configuration System (astropy.config)
  • I/O Registry (astropy.io.registry)
  • I/O Typing (astropy.io.typing)
  • Logging system
  • Python warnings system
  • Astropy Core Package Utilities (astropy.utils)
  • Environment variables
  • Astropy Glossary
  • User Guide
  • FITS File Handling (astropy.io.fits)
  • Reference/API

Reference/API#

  • File Handling and Convenience Functions
    • open()
    • writeto()
    • info()
    • printdiff()
    • append()
    • update()
    • getdata()
    • getheader()
    • getval()
    • setval()
    • delval()
  • HDU Lists
    • HDUList
  • Header Data Unit
    • PrimaryHDU
    • GroupsHDU
    • GroupData
      • Group
    • StreamingHDU
  • Headers
    • Header
  • Cards
    • Card
  • Tables
    • BinTableHDU
    • TableHDU
    • Column
    • ColDefs
    • FITS_rec
    • FITS_record
    • Table Functions
      • tabledump()
      • tableload()
      • table_to_hdu()
  • Images
    • ImageHDU
    • CompImageHDU
    • Section
    • CompImageSection
  • Differs
    • FITSDiff
    • HDUDiff
    • HeaderDiff
    • ImageDataDiff
    • RawDataDiff
    • TableDataDiff
  • Verification Options
    • 'exception'
    • 'ignore'
    • 'fix'
    • 'silentfix'
    • 'warn'
  • Tiled Compression
    • astropy.io.fits.hdu.compressed._tiled_compression Module
      • Functions
    • astropy.io.fits.hdu.compressed._codecs Module
      • Classes
      • Class Inheritance Diagram
    • astropy.io.fits.hdu.compressed._quantization Module
      • Classes
      • Class Inheritance Diagram

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