[daip] problems with APCAL

[Amy Mioduszewski]

Hi Matt,

I made a change last year to check for unreasonable solutions not allow them. 
Was the MK RCP Tau0 (K) not 0 in the 05 version?

Thanks,

Amy

Matthew L Lister wrote:
> I've been having problems with the 31DEC06 version of APCAL, if I run 
> APCAL from the 31DEC05 version
> on the same data it works fine. Here is the MSGSERV output. I've gotten 
> the same exact error on
> multiple BL149 datasets, everytime it chokes on MK.
> 
> prospe> APCAL1: Task APCAL  (release of 31DEC06) begins
> prospe> APCAL1: TXTWX: Weather data read from WX table   1
> prospe> APCAL1: DFTAU: INITIAL TAU0 SET TO 0.036
> prospe> APCAL1:
> prospe> APCAL1: Writing SN table  2
> prospe> APCAL1: BR       RCP 1/ 0h 2m Trec (K):    70.80 Zen. opac.:  0.002
> prospe> APCAL1: BR       LCP 1/ 0h 2m Trec (K):    59.16 Zen. opac.:  0.001
> prospe> APCAL1: Plot file version    1 created
> prospe> APCAL1: FD       RCP 1/ 0h 2m Trec (K):    47.14 Zen. opac.:  0.007
> prospe> APCAL1: FD       LCP 1/ 0h 2m Trec (K):    52.65 Zen. opac.:  0.012
> prospe> APCAL1: GFINIS: number records used     293
> prospe> APCAL1: KP       RCP 1/ 0h 2m Trec (K):    66.66 Zen. opac.:  0.021
> prospe> APCAL1: KP       LCP 1/ 0h 2m Trec (K):    65.07 Zen. opac.:  0.018
> prospe> APCAL1: Plot file version    2 created
> prospe> APCAL1: LA       RCP 1/ 0h 2m Trec (K):    50.16 Zen. opac.:  0.003
> prospe> APCAL1: LA       LCP 1/ 0h 2m Trec (K):    57.21 Zen. opac.:  0.006
> prospe> APCAL1: GFINIS: number records used     295
> prospe> APCAL1: MK       RCP 1/ 0h 2m Trec (K):    44.14 Zen. opac.: -0.003
> prospe> APCAL1: OPACOR: ERROR:MK  RCP Tau0 (K),   0.00, unreasonable value.
> prospe> APCAL1:       --This is probably due to bad data in TY table,
> prospe> APCAL1:         do some editing and try again.
> prospe> APCAL1: Purports to die of UNNATURAL causes
> 
> 
> Here are the inputs:
> 
> AIPS 1: APCAL     Task to generate an amplitude calibration SN table
> AIPS 1: Adverbs     Values                 Comments
> AIPS 1: ----------------------------------------------------------------
> AIPS 1: INNAME     'BL149AG'               Input UV file name (name)
> AIPS 1: INCLASS    'UVDATA'                Input UV file name (class)
> AIPS 1: INSEQ         0                    Input UV file name (seq. #)
> AIPS 1: INDISK        9                    Input UV file disk unit #
> AIPS 1:
> AIPS 1: ANTENNAS   *all 0                  Antennas to calibrate
> AIPS 1: SUBARRAY      0                    Subarray 0 -> 1
> AIPS 1: STOKES     ' '                     Stokes type ('R','L',' ')
> AIPS 1: BIF           0                    Start IF number
> AIPS 1: EIF           0                    End IF number
> AIPS 1: FREQID       -1                    Freq. ID to calibrate
> AIPS 1: SOURCES    *all ' '                Sources to calibrate
> AIPS 1: TIMERANG   *all 0                  Time range to calibrate
> AIPS 1:
> AIPS 1: TYVER         1                    TY table version number.
> AIPS 1: GCVER         1                    GC table version number.
> AIPS 1: SNVER         2                    Output SN table version.
> AIPS 1:                                      0 -> highest unique
> AIPS 1: OPCODE     'OPAC'                  Opacity correction opcode:
> AIPS 1:                                    '    ' -> no opacity corr.
> AIPS 1:                                    'GRID','GRDR','OPAC','OPCR',
> AIPS 1:                                      'LESQ' -> fit for opacity
> AIPS 1: APARM         0           0        Calibration parameters:
> AIPS 1:               0           0        (1) -> B factor (def. 1.0)
> AIPS 1:               4        *rest 0     Opacity parameters:
> AIPS 1:                                    (2) -> ZA limit (deg)
> AIPS 1:                                    (3) >=0  use spillover
> AIPS 1:                                             correction
> AIPS 1:                                    (4) > 0  use all FQ in
> AIPS 1:                                             opac. soln.
> AIPS 1:                                    (5) Limit to sec(z) plotted
> AIPS 1: SOLINT        0                    Solution interval (min)
> AIPS 1:                                       0 -> use all data
> AIPS 1: INVERS        1                    WX table version number.
> AIPS 1:                                       0 -> use text file
> AIPS 1: INFILE     *all ' '                Text file with weather info.
> AIPS 1:                                       Must be ' ' if using WX
> AIPS 1:                                       table (INVERS).
> AIPS 1: TRECVR       73          61          Receiver temperatures (K);
> AIPS 1:              47          53           in (R,L) pairs.
> AIPS 1:              67          64          64          64
> AIPS 1:              52          59          44          52
> AIPS 1:              56          55          64          66
> AIPS 1:              53          53          54          62
> AIPS 1:            *rest 0
> AIPS 1: TAU0       *all 0                  Zenith opacities (per ant.)
> AIPS 1: DOFIT         1           1        Fit type (per ant.)
> AIPS 1:               1           1          -1 -> no opacity correction
> AIPS 1:               1           1           0 -> apply TRECVR only
> AIPS 1:               1           1           1 -> solve for Trec using
> AIPS 1:               1           1                fitting method spec.
> AIPS 1:            *rest 0                         in OPCODE; then apply
> AIPS 1: PRTLEV        0                    Print level
> AIPS 1: DOTV         -1                    TV selection (<0 -> PL file)
> AIPS 1: LTYPE         3                    Plot labeling
> AIPS 1: GRCHAN        1                    TV Graphics channel to use
> 
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