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

Code: IST
Latitude:  41.04556
Longitude:   28.99583
Elevation:    50.0
Depth: 
Name: Istanbul
Region: Turkey
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:
=================

Checked against station bulletin
XC1R4-RWM
Moved slightly 1969
19620220-19890102
moved slightly 19690715

Data at the ISC for 42 years between 1939 and 1989.