[SAC-HELP] Header field mismatch..!!

[Talal Merghelani]

hi
   
  i'm adding spectral amplitude file1(EW) with spectral amplitude file2(NS) using the ADDF command. some times i successed and some time a got this error messege:
   
  ==================================================================
  WARNING: Time overlap: IBR0120610180753-1.am IBR0120610180753-2.am
   BEG1: OCT 18 (291), 2006 07:53:48.440
   BEG2: OCT 18 (291), 2006 07:53:34.000

  ERROR 1801: Header field mismatch:
  =================================================================
   
  of course if i want to ignore the error messege i have to use the command BINOPERR with Options N W,..etc.!!
   
  but, i'm wondering even when i use this ignoring command DO i have to worry about my data? mean is my data file is not complete or currupt it or damage? mean do i have to redo the proceess without getting this error messege.?
   
  i do the summation of 2 spectral file after FFT, mean the number of data point and the size of file are equal..? 
  so why do i have this error messege..?
   
  there is any thing i have to do with cut command in advance? to avoid this problem..!!
   
  any help i appreciate it..
   
  thank you
  Talal
   
  P.S. I use the READHEADER command and LISTHEADER command to check my header and they are in the same data number(257) and same starting and ending of file and date.
   
   
  Header Information of 2 file:
  =================================================================
  SAC> rh CHB0130610180753-1.am CHB0130610180753-2.am
SAC> lh
  
  
  FILE: CHB0130610180753-1.am - 1
 ---------------------------
           NPTS = 4097
            B = 0.000000e+00
            E = 5.000000e+01
       IFTYPE = GENERAL X VS Y FILE
        LEVEN = TRUE
        DELTA = 1.220703e-02
       DEPMIN = 4.249706e-07
       DEPMAX = 5.545297e+02
       DEPMEN = 4.084444e-01
      OMARKER = -34
     T0MARKER = 13.359
       KZDATE = OCT 18 (291), 2006
       KZTIME = 07:53:34.000
        KINST = K-NET95
        KSTNM = CHB013
        CMPAZ = 9.000000e+01
       CMPINC = 9.000000e+01
         STLA = 3.543270e+01
Waiting 
  
         STLO = 1.402905e+02
         STEL = 1.300000e+01
         EVLA = 3.570200e+01
         EVLO = 1.399200e+02
         EVDP = 5.600000e+01
         DIST = 4.495385e+01
           AZ = 1.315487e+02
          BAZ = 3.117632e+02
        GCARC = 4.042810e-01
       LOVROK = TRUE
        USER6 = 0.000000e+00
        USER7 = 4.200000e+00
        USER8 = 2.076000e+00
        USER9 = 6.000000e+01
       KUSER0 = JST
       KUSER1 = gal
       KUSER2 = JMAESR
        NVHDR = 6
        NORID = 0
        NEVID = 0
       LPSPOL = FALSE
       LCALDA = TRUE
Waiting 
  
       KCMPNM = E-W
       KNETWK = K-NET
  
  FILE: CHB0130610180753-2.am - 2
 ---------------------------
           NPTS = 4097
            B = 0.000000e+00
            E = 5.000000e+01
       IFTYPE = GENERAL X VS Y FILE
        LEVEN = TRUE
        DELTA = 1.220703e-02
       DEPMIN = 2.678420e-06
       DEPMAX = 8.641035e+01
       DEPMEN = 1.573665e-01
      OMARKER = -34
     T0MARKER = 13.359
       KZDATE = OCT 18 (291), 2006
       KZTIME = 07:53:34.000
        KINST = K-NET95
        KSTNM = CHB013
        CMPAZ = 0.000000e+00
Waiting 
  
       CMPINC = 9.000000e+01
         STLA = 3.543270e+01
         STLO = 1.402905e+02
         STEL = 1.300000e+01
         EVLA = 3.570200e+01
         EVLO = 1.399200e+02
         EVDP = 5.600000e+01
         DIST = 4.495385e+01
           AZ = 1.315487e+02
          BAZ = 3.117632e+02
        GCARC = 4.042810e-01
       LOVROK = TRUE
        USER6 = 0.000000e+00
        USER7 = 4.200000e+00
        USER8 = 1.708000e+00
        USER9 = 6.000000e+01
       KUSER0 = JST
       KUSER1 = gal
       KUSER2 = JMAESR
        NVHDR = 6
        NORID = 0
        NEVID = 0
Waiting 
  
       LPSPOL = FALSE
       LCALDA = TRUE
       KCMPNM = N-S
       KNETWK = K-NET
SAC> 
==================================================================

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