[daip] Possible bug in PCAL or History

[Roger Lynds]

	To whom it may concern:
	
	There seems to be a BIF/EIF inconsistancy between the setup of 
	PCAL and the reporting of its execution in the History file.  
	
	For example, the setup and execution 
	
	>task 'pcal'
	>calsour '1845+401', ' '
	>gainuse 2
	>clr2n
	>soltype 'appr'
	>solint 2
	>cparm 0
	>inp
	AIPS 1: PCAL    Task to compute polarization corrections
	AIPS 1: Adverbs         Values            Comments
	AIPS 1: ----------------------------------------------------------------
	AIPS 1: INNAME     '19980924    '          Input UV file name (name)
	AIPS 1: INCLASS    'L BAND'                Input UV file name (class)
	AIPS 1: INSEQ         1                    Input UV file name (seq. #)
	AIPS 1: INDISK        1                    Input UV file disk unit #
	AIPS 1:                                    Data selection (multisource):
	AIPS 1: CALSOUR    '1845+401        '      Sources to calibrate with
	AIPS 1:            *rest ' '
	AIPS 1: TIMERANG   *all 0                  Time range to use.
	AIPS 1: SELBAND      -1                    Bandwidth to select (kHz)
	AIPS 1: SELFREQ      -1                    Frequency to select (MHz)
	AIPS 1: FREQID        1                    Freq. ID to select.
	AIPS 1: BIF           1                    Lowest IF number 0=>all
	AIPS 1: EIF           2                    Highest IF number 0=>all
	AIPS 1: ANTENNAS   *all 0                  Antennas to solve for.
	AIPS 1: UVRANGE       0           0        UV range in kilolamdba
	AIPS 1: SUBARRAY      0                    Subarray, 0=>all
	AIPS 1:                                    Cal. info for input:
	AIPS 1: FLAGVER       1                    Flag table version
	AIPS 1: DOCALIB       1                    If >0 calibrate data
	AIPS 1: GAINUSE       2                    CAL table to apply.
	AIPS 1:                                    CLEAN map (optional)
	AIPS 1: IN2NAME    '            '             Cleaned map name (name)
	AIPS 1: IN2CLASS   '      '                   Cleaned map name (class)
	AIPS 1: IN2SEQ        0                       Cleaned map name (seq. #)
	AIPS 1: IN2DISK       0                       Cleaned map disk unit #
	AIPS 1: INVERS        1                    CC file version #.
	AIPS 1: NCOMP      *all 0                  # comps to use for model.
	AIPS 1:                                    1 value per field
	AIPS 1: NMAPS         0                    No. Clean map files
	AIPS 1: PMODEL     *all 0                  Source poln. model
	AIPS 1: SOLINT        2                    Soln. interval (min) 0=>10.
	AIPS 1: SOLTYPE    'APPR'                  Solution type:
	AIPS 1:                                    'ORI-', 'APPR', 'RAPR'
	AIPS 1: PRTLEV        1                    Print statistics 0=>none
	AIPS 1:                                    1 = some, 2 = lots. Use 1.
	AIPS 1: REFANT       19                    Reference antenna, 0=none.
	AIPS 1: BPARM      *all 0                  Task enrichment parameters
	AIPS 1:                                    for SOLTYPE 'ORI-' only:
	AIPS 1:                                    (1) if > 0 use default
	AIPS 1:                                        initial feed parameters.
	AIPS 1:                                    (3) if > 0 then fit for R-L
	AIPS 1:                                        phase difference
	AIPS 1:                                    (4) initial R-L phase
	AIPS 1:                                    (5) >0 solve for Vpol.
	AIPS 1:                                    (6) >0 fix ref. ori. 1
	AIPS 1:                                    (7) >0 fix ref. ori. 2
	AIPS 1:                                    (8) >0 fix all orientations
	AIPS 1:                                    (9) >0 fix all ellipticities
	AIPS 1:                                    (10) >0 fix source poln.
	AIPS 1: CPARM      *all 0                  Task enrichment parameters
	AIPS 1:                                    (1) > 0 => average in IF
	AIPS 1:                                       and find common solution.
	AIPS 1: ** press RETURN for more, enter Q or next line to quit print **
	AIPS 1:                                    (8) > 0 => max. no. iter
	AIPS 1:                                    (9) > 0 => conv. tolerance
	AIPS 1:                                    (10) > 0 => conv. tol.
	AIPS 1: BADDISK    *all 0                  Disk no. not to use for
	AIPS 1:                                       scratch files.
	>go

	is reported in the History file as 
	
	PCAL  RELEASE ='15OCT98 '  /********* Start 28-JAN-2001   13:50:53
	PCAL  INNAME='19980924    '   INCLASS='L BAND'
	PCAL  INSEQ=    1   INDISK=  1
	PCAL   /Sources included:
	PCAL   SOURCES = '1845+401        ','                '
	PCAL  /TIMERANG = beginning to end
	PCAL   SUBARRAY =   1
	PCAL   FLAGVER =  1 /Flagging table used
	PCAL   GAINUSE =   2 /CL table applied
	PCAL   SOLINT =     2.000 /Solution interval (min)
	PCAL   SOLTYPE ='APPR' /Poln. solution type
	PCAL   REFANT =  19 / Reference antenna
	PCAL   BIF =  2, EIF =   2 /IFs processed

	The misreporting of BIF may be unique to PCAL, as at least some 
	other tasks get it right.  
	
	This is probably old news, as I am still using AIPS(15Oct98).
	
	Roger Lynds
	National Optical Astronomy Observatories
	Tucson