AIPS HELP file for BPASSPRM in 31DEC26

As of Sat Feb 14 16:29:49 2026

HELP SECTION

BPASSPRM
Type: Adverb (Array(11))
Use:  Bandpass calibration control parameter array.
Tasks:
   BPASS.........Computes spectral bandpass correction table
   CPASS.........Computes polynomial spectral bandpass correction table

BPASSPRM use - see task helps for details
 (1) if > 0 use only the autocorrelation data.
 (2) print level.
 (3) If > 0 do not divide data by source model
 (4) If > 0 store phases only in the BP table.
 (5) Divide by 'channel 0' control:
       0 -> divide by channel 0 amp and phase each time
      -1 -> divide by channel 0 phase only each time
      -2 -> divide by channel 0 after scan average
       1 -> do no division by channel 0
 (6) amp closure error limit - print channels averaging over this if
     (2) > 0
 (7) phase closure error limit print channels averaging over this if
     (2) > 0
 (8) > 0 => scalar average amplitudes
 (9) > 0 => interpolate over flagged channels if poss.
 (10) 0 => no deliberate normalization after solutions found.
      1 => normalize amplitudes using all channels
      2 => normalize amplitudes using ICHANSEL channels
      3 => normalize amplitudes and zero average phase using ICHANSEL
           channels
      4 => normalize amplitudes and zero average phase using all
           channels
      5 => normalize amplitudes and zero average phase using ICHANSEL
           channels - normalizes power (square of BP function) not
           function itself
      6 => normalize amplitudes and zero average phase using all
           channels - normalizes power (square of BP function) not
           function itself
      7 => normalize amplitudes and zero average phase using ICHANSEL
           channels and medians
      8 => normalize amplitudes and zero average phase using all
           channels and medians
      9 => normalize amplitudes only using ICHANSEL channels and medians
     10 => normalize amplitudes only using all channels and medians
 (11) > 0 solution weights are independent of channel <=0, > -1.5
      weights scaled by amplitude**2,  < -1.5 weights scaled by
      1 / amplitude**2

EXPLAIN SECTION