AIPS HELP file for NOISE in 31DEC26

As of Sun Jun 7 23:20:37 2026

HELP SECTION

NOISE
Type:  Adverb  (array(64))
Use:   Gives the noise estimate for up to 64 fields in the *TESS
       imaging tasks.  In UV flagging, used as a noise level cutoff as
       a function of up to 64 IFs.  Used elsewhere when a large array
       is needed.
Null value:
       None
Tasks:
   FIXBX.........Converts a BOXFILE to another for input to IMAGR.
                 NOISE is misused to convey the old RASHIFT values.
   FLATN.........Re-grid multiple fields into one image incl
                 sensitivity.  NOISE gives the relative error for each
                 pointing.
   LTESS.........Makes mosaic images by linear combination.
   OMFIT.........Fits sources and, optionally, a self-cal model to uv
                 data.  NOISE gives the a priori noise and 2 cutoffs.
   RFLAG.........Flags data set based on time and freq rms in fringe
                 visibilities.  NOISE is an IF-dependent cutoff for time
                 rms values.
   SOUSP.........Fits source spectral index from SU table or adverbs.
                 NOISE gives the expected noise for up to 64
                 frequencies.
   STESS.........Finds sensitivity in mosaicing.
   UTESS.........Deconvolves polarization images by maximizing
                 emptiness.
   VTESS.........Deconvolves sets of images by the Maximum Entropy
                 Method.
   WTMOD.........Modifies weights in a UV data set.  NOISE provides the
                 weight scale for each antenna.
Procedures:
   Y2KSAVE.......Verifies correctness and performance using standard
                 problems.

EXPLAIN SECTION