This page shows the calibration history for the SLU station STIL. 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 Aug 3 2016
NET | STATION | LOC | COMP | START | END | PEAK |
NM | STIL | BNE | 2011,001,00:00:00.0000 | 2014,038,17:02:00.0000 | Peak Sensitivity 1.2812e+05 Counts/METER/S**2 at 21.93 Hz | |
NM | STIL | BNN | 2011,001,00:00:00.0000 | 2014,038,17:02:00.0000 | Peak Sensitivity 1.2831e+05 Counts/METER/S**2 at 21.94 Hz | |
NM | STIL | BNZ | 2011,001,00:00:00.0000 | 2014,038,17:02:00.0000 | Peak Sensitivity 1.2966e+05 Counts/METER/S**2 at 21.93 Hz | |
NM | STIL | ENE | 2011,001,00:00:00.0000 | 2014,038,17:02:00.0000 | Peak Sensitivity 1.2986e+05 Counts/METER/S/S at 50.04 Hz | |
NM | STIL | ENN | 2011,001,00:00:00.0000 | 2014,038,17:02:00.0000 | Peak Sensitivity 1.3005e+05 Counts/METER/S/S at 49.94 Hz | |
NM | STIL | ENZ | 2011,001,00:00:00.0000 | 2014,038,17:02:00.0000 | Peak Sensitivity 1.3142e+05 Counts/METER/S/S at 49.98 Hz | |
NM | STIL | HNE | 2011,001,00:00:00.0000 | 2014,038,17:02:00.0000 | Peak Sensitivity 1.2971e+05 Counts/METER/S**2 at 43.88 Hz | |
NM | STIL | HNN | 2011,001,00:00:00.0000 | 2014,038,17:02:00.0000 | Peak Sensitivity 1.2990e+05 Counts/METER/S**2 at 43.88 Hz | |
NM | STIL | HNZ | 2011,001,00:00:00.0000 | 2014,038,17:02:00.0000 | Peak Sensitivity 1.3127e+05 Counts/METER/S**2 at 43.88 Hz |
NET STA LC CMP ON_DATE OFF_DATE LAT LON ELV DIP AZ RATE RESPONSE_FILE POLE_ZERO_FILE NM STIL ** BNE 2011,001,00:00:00.0000 2014,038,17:02:00.0000 38.620500 -90.162600 131.9 0.0 90.0 50 RESP.NM.STIL..BNE SAC_PZs_NM_STIL_BNE__2011.001.00.00.00.0000_2014.038.17.02.60.99999 NM STIL ** BNN 2011,001,00:00:00.0000 2014,038,17:02:00.0000 38.620500 -90.162600 131.9 0.0 0.0 50 RESP.NM.STIL..BNN SAC_PZs_NM_STIL_BNN__2011.001.00.00.00.0000_2014.038.17.02.60.99999 NM STIL ** BNZ 2011,001,00:00:00.0000 2014,038,17:02:00.0000 38.620500 -90.162600 131.9 -90.0 0.0 50 RESP.NM.STIL..BNZ SAC_PZs_NM_STIL_BNZ__2011.001.00.00.00.0000_2014.038.17.02.60.99999 NM STIL ** ENE 2011,001,00:00:00.0000 2014,038,17:02:00.0000 38.620500 -90.162600 131.9 0.0 90.0 200 RESP.NM.STIL..ENE SAC_PZs_NM_STIL_ENE__2011.001.00.00.00.0000_2014.038.17.02.60.99999 NM STIL ** ENN 2011,001,00:00:00.0000 2014,038,17:02:00.0000 38.620500 -90.162600 131.9 0.0 0.0 200 RESP.NM.STIL..ENN SAC_PZs_NM_STIL_ENN__2011.001.00.00.00.0000_2014.038.17.02.60.99999 NM STIL ** ENZ 2011,001,00:00:00.0000 2014,038,17:02:00.0000 38.620500 -90.162600 131.9 -90.0 0.0 200 RESP.NM.STIL..ENZ SAC_PZs_NM_STIL_ENZ__2011.001.00.00.00.0000_2014.038.17.02.60.99999 NM STIL ** HNE 2011,001,00:00:00.0000 2014,038,17:02:00.0000 38.620500 -90.162600 131.9 0.0 90.0 100 RESP.NM.STIL..HNE SAC_PZs_NM_STIL_HNE__2011.001.00.00.00.0000_2014.038.17.02.60.99999 NM STIL ** HNN 2011,001,00:00:00.0000 2014,038,17:02:00.0000 38.620500 -90.162600 131.9 0.0 0.0 100 RESP.NM.STIL..HNN SAC_PZs_NM_STIL_HNN__2011.001.00.00.00.0000_2014.038.17.02.60.99999 NM STIL ** HNZ 2011,001,00:00:00.0000 2014,038,17:02:00.0000 38.620500 -90.162600 131.9 -90.0 0.0 100 RESP.NM.STIL..HNZ SAC_PZs_NM_STIL_HNZ__2011.001.00.00.00.0000_2014.038.17.02.60.99999
Created Mon Jan 27 18:39:54 UTC 2020