apextract: Aperture Extraction Package
- apall: Extract 1D spectra (all parameters in one task)
- apdefault: Set the default aperture parameters and apidtable
- apedit: Edit apertures interactively
- apfind: Automatically find spectra and define apertures
- apfit: Fit 2D spectra and output the fit, difference, or ratio
- apflatten: Remove overall spectral and profile shapes from flat fields
- apnoise: Compute and examine noise characteristics of spectra
- apmask: Create and IRAF pixel list mask of the apertures
- apnormalize: Normalize 2D apertures by 1D functions
- aprecenter: Recenter apertures
- apresize: Resize apertures
- apscatter: Fit and subtract scattered light
- apsum: Extract 1D spectra
- aptrace: Trace positions of spectra
- apbackground: Background subtraction algorithms
- approfiles: Profile determination algorithms
- apvariance: Extractions, variance weighting, cleaning, and noise model
- extras: Information about the extra information in 3D images
- package: Package parameters and general description of package