diff --git a/Analysis/ground_motion_experiment.m b/Analysis/ground_motion_experiment.m
index ae34883..59e84a2 100644
--- a/Analysis/ground_motion_experiment.m
+++ b/Analysis/ground_motion_experiment.m
@@ -52,7 +52,7 @@ hold off;
 
 exportFig('tomo_psd_translations', 'normal-normal')
 
-%% PSD X-Y-Z
+%% PSD
 han_windows = hanning(ceil(length(Dsample.Time)/10));
 
 [psd_x, freqs_x] = pwelch(Dsample.Data(:, 4), han_windows, 0, [], 1/Ts);
diff --git a/Assemblage.slx b/Assemblage.slx
index 9691ad2..b886624 100644
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diff --git a/Identification/identification_NASS.m b/Identification/identification_NASS.m
index d244c5f..7bafb42 100644
--- a/Identification/identification_NASS.m
+++ b/Identification/identification_NASS.m
@@ -6,12 +6,12 @@
 clear; close all; clc;
 
 %%
-initializeSample(struct('mass', 0));
+initializeSample(struct('mass', 1));
 
 G_nass_1 = identifyNass();
 
 %%
-initializeSample(struct('mass', 10));
+initializeSample(struct('mass', 20));
 
 G_nass_20 = identifyNass();
 
diff --git a/init_data.m b/init_data.m
index 8bdfb8d..3b20bcb 100644
--- a/init_data.m
+++ b/init_data.m
@@ -3,7 +3,7 @@ clear; close all; clc;
 
 %% Initialize Inputs
 opts_inputs = struct(...
-    'ground_motion', false...
+    'ground_motion', true ...
 );
 
 initializeInputs(opts_inputs);
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