2013-01-25

lens-fitting success

Around a nice talk by Daniel Grin (IAS) about estimators for non-Gaussianity in CMB projects and related matters, Marshall and I worked on initialization and optimization of lens models for PanSTARRS data. The optimizer was borked but we figured out it was because the (numerical) derivatives were being taken with step sizes that were too large. Fixed that and it now almost works!

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