Station details:
================

Code: LCG
Latitude:  21.14500
Longitude: -101.72500
Elevation:  2200.0
Depth: 
Name: Leon Cerro Gordo
Region: Guanajuato,Mexico
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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Checked against station bulletin
XC1-WWV
Leo@15n Cerro Gordo
196803-before 199911

Data at the ISC for 13 years between 1968 and 1986.