Station details:
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Code: ACTO
Latitude:  43.60867
Longitude:  -80.06236
Elevation:   360.0
Depth: 
Name: Acton
Region: Ontario,Canada
Status: 

      

        
     
    
   
   

    

     

      
Arrival picks statistics
     
     

      

      

     
     

      
Travel Time Analysis
     
     

      

     
     

      
On the top graph every dot represents the median residual for one month of data. The green line is the overall median; the orange line shows the standard deviation (smad) based on the median absolute deviation (mad), whilst the red line shows twice the standard deviation (2 * smad).
The bottom graph shows the number of residuals for each month. The red columns show the number of residuals whose median (for that month) is outside two standard deviations from the overall median (2 * smad).
Red dots indicate a possible clock error.
     
     

      
Travel time residuals
     
     

      

      

     
    
   
 

Station comments:
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opened 19910709
POLR opened 20020131

Data at the ISC for 34 years between 1991 and 2024.