Calibration History

This page shows the calibration history for the SLU station CBMO. 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:

      491520 Feb 4 14:36

Response Plots

Peak Responses

NET STATION LOC COMP START END PEAK
NM CBMO BNE 2011,001,00:00:00.0000 2019,259,18:20:00.0000 Peak Sensitivity 1.2857e+05 Counts/METER/S**2 at 21.93 Hz
NM CBMO BNN 2011,001,00:00:00.0000 2019,259,18:20:00.0000 Peak Sensitivity 1.2889e+05 Counts/METER/S**2 at 21.93 Hz
NM CBMO BNZ 2011,001,00:00:00.0000 2019,259,18:20:00.0000 Peak Sensitivity 1.3062e+05 Counts/METER/S**2 at 21.93 Hz
NM CBMO ENE 2011,001,00:00:00.0000 2019,259,18:20:00.0000 Peak Sensitivity 1.3031e+05 Counts/METER/S/S at 50.01 Hz
NM CBMO ENN 2011,001,00:00:00.0000 2019,259,18:20:00.0000 Peak Sensitivity 1.3064e+05 Counts/METER/S/S at 50.01 Hz
NM CBMO ENZ 2011,001,00:00:00.0000 2019,259,18:20:00.0000 Peak Sensitivity 1.3240e+05 Counts/METER/S/S at 49.94 Hz
NM CBMO HNE 2011,001,00:00:00.0000 2019,259,18:20:00.0000 Peak Sensitivity 1.3016e+05 Counts/METER/S**2 at 43.88 Hz
NM CBMO 01 HNE 2019,259,18:20:00.0000 2599,365,23:59:59 Peak Sensitivity 4.2792e+05 Counts/METER/S**2 at 10.86 Hz
NM CBMO 02 HNE 2019,259,18:20:00.0000 2599,365,23:59:59 Peak Sensitivity 4.2784e+05 Counts/METER/S**2 at 15.45 Hz
NM CBMO HNN 2011,001,00:00:00.0000 2019,259,18:20:00.0000 Peak Sensitivity 1.3049e+05 Counts/METER/S**2 at 43.88 Hz
NM CBMO 01 HNN 2019,259,18:20:00.0000 2599,365,23:59:59 Peak Sensitivity 4.2889e+05 Counts/METER/S**2 at 10.86 Hz
NM CBMO 02 HNN 2019,259,18:20:00.0000 2599,365,23:59:59 Peak Sensitivity 4.2882e+05 Counts/METER/S**2 at 15.44 Hz
NM CBMO HNZ 2011,001,00:00:00.0000 2019,259,18:20:00.0000 Peak Sensitivity 1.3225e+05 Counts/METER/S**2 at 43.88 Hz
NM CBMO 01 HNZ 2019,259,18:20:00.0000 2599,365,23:59:59 Peak Sensitivity 4.2936e+05 Counts/METER/S**2 at 10.89 Hz
NM CBMO 02 HNZ 2019,259,18:20:00.0000 2599,365,23:59:59 Peak Sensitivity 4.2929e+05 Counts/METER/S**2 at 15.46 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  CBMO ** BNE    2011,001,00:00:00.0000    2019,259,18:20:00.0000  37.303600  -89.523600   102.6   0.0  90.0         50 RESP.NM.CBMO..BNE SAC_PZs_NM_CBMO_BNE__2011.001.00.00.00.0000_2019.259.18.20.60.99999 
 NM  CBMO ** BNN    2011,001,00:00:00.0000    2019,259,18:20:00.0000  37.303600  -89.523600   102.6   0.0   0.0         50 RESP.NM.CBMO..BNN SAC_PZs_NM_CBMO_BNN__2011.001.00.00.00.0000_2019.259.18.20.60.99999 
 NM  CBMO ** BNZ    2011,001,00:00:00.0000    2019,259,18:20:00.0000  37.303600  -89.523600   102.6 -90.0   0.0         50 RESP.NM.CBMO..BNZ SAC_PZs_NM_CBMO_BNZ__2011.001.00.00.00.0000_2019.259.18.20.60.99999 
 NM  CBMO ** ENE    2011,001,00:00:00.0000    2019,259,18:20:00.0000  37.303600  -89.523600   102.6   0.0  90.0        200 RESP.NM.CBMO..ENE SAC_PZs_NM_CBMO_ENE__2011.001.00.00.00.0000_2019.259.18.20.60.99999 
 NM  CBMO ** ENN    2011,001,00:00:00.0000    2019,259,18:20:00.0000  37.303600  -89.523600   102.6   0.0   0.0        200 RESP.NM.CBMO..ENN SAC_PZs_NM_CBMO_ENN__2011.001.00.00.00.0000_2019.259.18.20.60.99999 
 NM  CBMO ** ENZ    2011,001,00:00:00.0000    2019,259,18:20:00.0000  37.303600  -89.523600   102.6 -90.0   0.0        200 RESP.NM.CBMO..ENZ SAC_PZs_NM_CBMO_ENZ__2011.001.00.00.00.0000_2019.259.18.20.60.99999 
 NM  CBMO ** HNE    2011,001,00:00:00.0000    2019,259,18:20:00.0000  37.303600  -89.523600   102.6   0.0  90.0        100 RESP.NM.CBMO..HNE SAC_PZs_NM_CBMO_HNE__2011.001.00.00.00.0000_2019.259.18.20.60.99999 
 NM  CBMO ** HNN    2011,001,00:00:00.0000    2019,259,18:20:00.0000  37.303600  -89.523600   102.6   0.0   0.0        100 RESP.NM.CBMO..HNN SAC_PZs_NM_CBMO_HNN__2011.001.00.00.00.0000_2019.259.18.20.60.99999 
 NM  CBMO ** HNZ    2011,001,00:00:00.0000    2019,259,18:20:00.0000  37.303600  -89.523600   102.6 -90.0   0.0        100 RESP.NM.CBMO..HNZ SAC_PZs_NM_CBMO_HNZ__2011.001.00.00.00.0000_2019.259.18.20.60.99999 
 NM  CBMO 01 HNE    2019,259,18:20:00.0000         2599,365,23:59:59  37.303600  -89.523600   102.6   0.0  90.0        100 RESP.NM.CBMO.01.HNE SAC_PZs_NM_CBMO_HNE_01_2019.259.18.20.00.0000_2599.365.23.59.59.99999 
 NM  CBMO 01 HNN    2019,259,18:20:00.0000         2599,365,23:59:59  37.303600  -89.523600   102.6   0.0   0.0        100 RESP.NM.CBMO.01.HNN SAC_PZs_NM_CBMO_HNN_01_2019.259.18.20.00.0000_2599.365.23.59.59.99999 
 NM  CBMO 01 HNZ    2019,259,18:20:00.0000         2599,365,23:59:59  37.303600  -89.523600   102.6 -90.0   0.0        100 RESP.NM.CBMO.01.HNZ SAC_PZs_NM_CBMO_HNZ_01_2019.259.18.20.00.0000_2599.365.23.59.59.99999 
 NM  CBMO 02 HNE    2019,259,18:20:00.0000         2599,365,23:59:59  37.303600  -89.523600   102.6   0.0  90.0        200 RESP.NM.CBMO.02.HNE SAC_PZs_NM_CBMO_HNE_02_2019.259.18.20.00.0000_2599.365.23.59.59.99999 
 NM  CBMO 02 HNN    2019,259,18:20:00.0000         2599,365,23:59:59  37.303600  -89.523600   102.6   0.0   0.0        200 RESP.NM.CBMO.02.HNN SAC_PZs_NM_CBMO_HNN_02_2019.259.18.20.00.0000_2599.365.23.59.59.99999 
 NM  CBMO 02 HNZ    2019,259,18:20:00.0000         2599,365,23:59:59  37.303600  -89.523600   102.6 -90.0   0.0        200 RESP.NM.CBMO.02.HNZ SAC_PZs_NM_CBMO_HNZ_02_2019.259.18.20.00.0000_2599.365.23.59.59.99999 

Created Tue Feb 4 20:37:27 UTC 2020