Next: 3 Text Output Up: PSS Prev: 1 Introduction

2 EXPERT Mode

The EXPERT logical parameter enables more detailed controls over the various stages of PSS's processing. PSS remembers your setting of EXPERT from one to run to the next.

The following values are used for different PSS parameters when the default NOEXPERT mode is selected, and are offered as defaults when EXPERT is selected.

  Parameter       Value         Description
  PSFCON          Y             PSF constant across field
  PSFPIX          68%           The value which encloses 68% of
                                the incident energy
  RESCALE         N             Do not rescale background
  EXTEN           N             Don't fit source extension
  SAMPLE          1             Grid spacing on first pass equals
                                that of input pixels
  FERL            68%           Flux error confidence level
  ASYMMETRIC      N             Produce asymmetric errors
  PERL            90%           Position error confidence level
  MULREJ*         1.0           Controls rejection of spurious
                                peaks in significance map. Lower
                                values permit closer sources.
  * indicates hidden parameters

Next: 3 Text Output Up: PSS Prev: 1 Introduction