Data import (

Methods for automatically importing data to python. Each spacecraft has its own sub-module:

Each mission does not have a complete set of data import methods, but the goal of HelioPy is to be as complete as possible. If you want to import a data set that is not yet supported please open an issue on the bug tracker at

There are also modules for downloading SPICE kernels and sunspot number data:

a module with helper functions that apply generally to all data is available:

and utility functions that much of the data import uses are also available in the cdas and util modules:

Adding new data sources

Adding a new data source to HelioPy involves subclassing For more information, see the docstring of Downloader.

SunPy and AstroPy Integration

HelioPy is built to be used alongside SunPy and astropy. Before v0.6, HelioPy returned a pandas DataFrame object. After adding physical units to the data, HelioPy now returns a SunPy TimeSeries object. The TimeSeries object is capable of storing the data in a DataFrame, and also stores the units that are associated with each data column.

An example on how to use TimeSeries data and astropy units is also available in TimeSeries Plotting Example.