Calibration History

This page shows the calibration history for the SLU station MVMO. For each date and component, the amplitude and phase spectrum of the velocity sensitivity are presented as well as a simulated system response to an step in the INPUT units using the response obtained from the RESP file (obtained using the command rdseed -f dataless -R) together with evalresp are given in the first three figures in a row. The last two figures provide a plot of the sensitivity and simulated step response using the polezero file obtained using the command rdseed -f dataless -p. The purpose of the step response is to verify the polarity of the system.

Since modern broadband sensors have a flat response to ground velocity in the passband and since accelerometers have a flat response to acceleration, the plots give velocity and accelerations sensitivity, respectively, for the two types of instruments. In using the pole-zero files we carefully examine the input units to create the proper plot.

As distributed in the SEED response files available by ftp, ground motion up, to the north and to the east corresponds to positive numbers.

The time-date stamp for the seed file is the following: 

      458752 May 9 14:29

Response Plots

Peak Responses

NET STATION LOC COMP START END PEAK
NM MVMO BNE 2003,252,00:00:00.0000 2011,113,18:00:00.0000 Peak Sensitivity 1.2910e+05 Counts/METER/S/S at 21.94 Hz
NM MVMO BNN 2003,252,00:00:00.0000 2011,113,18:00:00.0000 Peak Sensitivity 1.2980e+05 Counts/METER/S/S at 21.94 Hz
NM MVMO BNZ 2003,252,00:00:00.0000 2011,113,18:00:00.0000 Peak Sensitivity 1.3162e+05 Counts/METER/S/S at 21.93 Hz
NM MVMO ENE 2003,252,00:00:00.0000 2011,113,18:00:00.0000 Peak Sensitivity 1.3085e+05 Counts/METER/S/S at 49.93 Hz
NM MVMO ENN 2003,252,00:00:00.0000 2011,113,18:00:00.0000 Peak Sensitivity 1.3157e+05 Counts/METER/S/S at 49.95 Hz
NM MVMO ENZ 2003,252,00:00:00.0000 2011,113,18:00:00.0000 Peak Sensitivity 1.3341e+05 Counts/METER/S/S at 49.95 Hz
NM MVMO HNE 2003,252,00:00:00.0000 2011,113,18:00:00.0000 Peak Sensitivity 1.3070e+05 Counts/METER/S/S at 43.88 Hz
NM MVMO HNN 2003,252,00:00:00.0000 2011,113,18:00:00.0000 Peak Sensitivity 1.3141e+05 Counts/METER/S/S at 43.88 Hz
NM MVMO HNZ 2003,252,00:00:00.0000 2011,113,18:00:00.0000 Peak Sensitivity 1.3326e+05 Counts/METER/S/S at 43.89 Hz

Station Information from Computer Programs in Seismology 3.30 annotated rdseed

NET  STA  LC CMP       ON_DATE                   OFF_DATE               LAT         LON        ELV    DIP    AZ       RATE  RESPONSE_FILE         POLE_ZERO_FILE
 NM  MVMO ** BNE    2003,252,00:00:00.0000    2011,113,18:00:00.0000  38.646500  -90.500800   183.0   0.0  90.0         50 RESP.NM.MVMO..BNE SAC_PZs_NM_MVMO_BNE__2003.252.00.00.00.0000_2011.113.18.60.60.99999 
 NM  MVMO ** BNN    2003,252,00:00:00.0000    2011,113,18:00:00.0000  38.646500  -90.500800   183.0   0.0   0.0         50 RESP.NM.MVMO..BNN SAC_PZs_NM_MVMO_BNN__2003.252.00.00.00.0000_2011.113.18.60.60.99999 
 NM  MVMO ** BNZ    2003,252,00:00:00.0000    2011,113,18:00:00.0000  38.646500  -90.500800   183.0 -90.0   0.0         50 RESP.NM.MVMO..BNZ SAC_PZs_NM_MVMO_BNZ__2003.252.00.00.00.0000_2011.113.18.60.60.99999 
 NM  MVMO ** ENE    2003,252,00:00:00.0000    2011,113,18:00:00.0000  38.646500  -90.500800   183.0   0.0  90.0        200 RESP.NM.MVMO..ENE SAC_PZs_NM_MVMO_ENE__2003.252.00.00.00.0000_2011.113.18.60.60.99999 
 NM  MVMO ** ENN    2003,252,00:00:00.0000    2011,113,18:00:00.0000  38.646500  -90.500800   183.0   0.0   0.0        200 RESP.NM.MVMO..ENN SAC_PZs_NM_MVMO_ENN__2003.252.00.00.00.0000_2011.113.18.60.60.99999 
 NM  MVMO ** ENZ    2003,252,00:00:00.0000    2011,113,18:00:00.0000  38.646500  -90.500800   183.0 -90.0   0.0        200 RESP.NM.MVMO..ENZ SAC_PZs_NM_MVMO_ENZ__2003.252.00.00.00.0000_2011.113.18.60.60.99999 
 NM  MVMO ** HNE    2003,252,00:00:00.0000    2011,113,18:00:00.0000  38.646500  -90.500800   183.0   0.0  90.0        100 RESP.NM.MVMO..HNE SAC_PZs_NM_MVMO_HNE__2003.252.00.00.00.0000_2011.113.18.60.60.99999 
 NM  MVMO ** HNN    2003,252,00:00:00.0000    2011,113,18:00:00.0000  38.646500  -90.500800   183.0   0.0   0.0        100 RESP.NM.MVMO..HNN SAC_PZs_NM_MVMO_HNN__2003.252.00.00.00.0000_2011.113.18.60.60.99999 
 NM  MVMO ** HNZ    2003,252,00:00:00.0000    2011,113,18:00:00.0000  38.646500  -90.500800   183.0 -90.0   0.0        100 RESP.NM.MVMO..HNZ SAC_PZs_NM_MVMO_HNZ__2003.252.00.00.00.0000_2011.113.18.60.60.99999 



Created Mon May  9 19:30:19 UTC 2011