sac-format polezero input from file vtso.pz
* VTSO "STANDARD RESPONSE"  COUNTS/MICRON  8 MAY 1992
    A0 =  7.0585E+11   9  RESPONSE POLES: 
  (   -1.31947,  0.)  (  -0.879646,  0.)  (   -50.2655,  0.)
  (   -56.5487,  0.)  (   -125.664,  0.)  (   -4.39823,   -4.48709)
  (   -4.39823,    4.48709)  (   -62.8319,   -108.828)  (   -62.8319,    108.828)
     5 RESPONSE ZEROES   5 ZERO VALUES:

     Frequency    Displ. Amp.         Phase
     0.0100     2.6646E-06        -1.4345       -82.1933
     0.0200     8.4338E-05        -1.2992       -74.4399
     0.0300     6.2906E-04        -1.1657       -66.7902
     0.0400     2.5867E-03        -1.0348       -59.2897
     0.0500     7.6566E-03        -0.9072       -51.9766
     0.0600     1.8379E-02        -0.7833       -44.8817
     0.0700     3.8140E-02        -0.6637       -38.0275
     0.0800     7.1104E-02        -0.5485       -31.4288
     0.0900     0.1221            -0.4380       -25.0936
     0.1000     0.1965            -0.3320       -19.0242
     0.1500      1.127             0.1314         7.5258
     0.2000      3.552             0.5013        28.7220
     0.3000      15.70             1.0567        60.5419
     0.4000      41.56             1.4731        84.3997
     0.5000      84.76             1.8190       104.2216
     0.6000      147.1             2.1260       121.8135
     0.7000      227.7             2.4078       137.9575
     0.8000      323.1             2.6690       152.9216
     0.9000      428.0             2.9101       166.7367
     1.0000      536.8             3.1306       179.3678
     1.5000      1038.             3.9470       226.1454
     2.0000      1440.             4.4509       255.0202
     3.0000      2080.             5.0941       291.8704
     4.0000      2564.             5.5523       318.1237
     5.0000      2910.             5.9299       339.7585
     6.0000      3137.             6.2599       358.6681
     7.0000      3265.             6.5571       375.6926
     8.0000      3317.             6.8297       391.3114
     9.0000      3310.             7.0834       405.8502
    10.0000      3260.             7.3226       419.5538
    15.0000      2631.             8.3930       480.8845
    20.0000      1695.             9.3193       533.9539
    30.0000      496.1            10.4919       601.1415
    40.0000      167.9            11.0523       633.2474
    50.0000      70.28            11.3697       651.4354
    60.0000      34.23            11.5752       663.2123
    70.0000      18.58            11.7198       671.4944
    80.0000      10.93            11.8272       677.6495
    90.0000      6.841            11.9103       682.4094
   100.0000      4.496            11.9765       686.2023