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

Code: A24A
Latitude:  48.92390
Longitude: -104.00180
Elevation:   677.0
Depth: 
Name: Westby
Region: North Dakota,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.
Travel time residuals
 

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

Part of the USArray Transportable Array Network

Data at the ISC for 3 years between 2008 and 2010.

Known station history:
======================

First and Last use refers to the time period in which the coordinates were used by the ISC.

Code   Station name/Region                                           Latitude  Longitude Elevation   Depth  First use   Last use
================================================================================================================================

A24A   Westby                                                        48.92390 -104.00180     677.0         03-06-2008 09-03-2011  
       North Dakota,U.S.A.