Project: datamanagement
Issue DM-1989: Define API for Stack Astrometric Calibration
70% RO 30% KSK This should also include a minimal implementation. This should be done with an eye toward photometric calibration. Prerequisite: Get multi epoch (multi-band?) catalogs of centroids from some trusted source (CFHT, HSC?). 1. Load all stars that overlap a patch for all epochs. 2. Associate all stars on each chip. 2a. Implement K-D tree 3. Fit model for rigid chip system + optics + atmosphere. Eigen for sparse model fitter. 3a. Allow for external catalog. 3b. This could include a class to fit XYTransforms 4. Turn result into WCS. So maybe a down scope for a single cycle epic is to get matches and interfaces for models and solvers.
Story points: 75