Level 1# Initial Uncertainty Estimation Concept Applying correction Quartic Fit Correction Concept Applying correction Deriving coefficients Despike Concept Applying correction Destreaking Concept Applying correction Vignetting Correction Concept Applying correction Deriving correction Deficient Pixel Replacement Concept Applying correction Deriving the pixel mask Stray Light Removal Concept Applying correction Deriving stray light model PSF Correction Concept Applying correction Pointing Correction Concept Applying correction