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

Code: NEE
Latitude:  34.82300
Longitude: -114.59600
Elevation:   139.0
Depth: 
Name: Needles
Region: California,U.S.A.
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.
 

Station comments:
=================

closed 19880101
reopened 19930312
TERA opened 19930420
Coords corrected slightly 20021231

Data at the ISC for 9 years between 1993 and 2006.