Use Intake

A light suggestion that people here may want to consider expressing this collection of data-sets using [Intake](https://intake.readthedocs.io/en/latest/), which is a cataloging standard allowing you to describe the metadata and way-to-load for data in a single browsable, searchable spec, e.g., a YAML file. This is, for instance, what the [pangeo collaboration](https://github.com/pangeo-data/pangeo-datastore) does. Most of their data is in zarr or other xarray-compatible formats, so you would also need [intake-astro](https://github.com/intake/intake-astro) to enable loading FITS data from remote files, with local caching if desired, and lazy-loading with Dask.