What are the default parameters valid for?
Section by section: • SkyEngine Default parameters are set for a slowly varying sky, i.e. the sky can be considered constant in time over a range of 2*RejectHalfWidth+1 frames. If you are observing in J or H with a total exposure time of 1 second per frame, it is reasonable to set the half-width of the running filter to a high value. If you are observing in K or Ks and have a long exposure time per frame, do not use values above 2 or 3 as half-width, the assumption of a constant sky in time is not valid anymore. • Shift and add Default behaviour is to look for cross-correlating objects automatically, locate a small number of objects around the center of the first frame, and refine the inputs given by the FITS headers. Frame shifts are by default performed by resampling using a hyperbolic tangent kernel for interpolation. The only average method is filtered, rejecting a user-specified number of min and max pixels on each time line before averaging. • Post-processing Default is to apply
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