Demonstrates how to fit an astrometry prior to a groundbased optical mosaic camera.
The notebook in the notebooks/ztf subdirectory shows how to fit a global
model to data from a mosaic camera, in this case the Zwicky Transient Facility
camera. This example uses public ZTF data.
For reference, see David Shupe's SciPy 2018 proceedings paper and talk where the method of computing a prior for ZTF was described.
Please also reference the ZTF pipeline paper Masci et al 2019.