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

Code: ELT
Latitude:  53.26138
Longitude:   86.23875
Elevation:   235.0
Depth: 
Name: Eltsovka
Region: Altayskiy Kray,Russia
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
Amplitude analysis
 On the top graph every dot represents the median value for that 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 (if present) shows twice the standard deviation (2 * smad).
The bottom graph shows the number of observations for each month. Any red columns show those observations whose monthly median value is greater than twice the standard deviation (2 * smad) from the overall (running) median (shown in the top graph by red dots).

Red dots indicate a possible calibration error.
 

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

XC2R4-RAT-RCH-RID-RIM-RKM-RTA-RWM
Coords and name corrected 20131111
opened 19600717
Elevation corrected 20000522
Coords corrected >2 km 20011124
Coords corrected slightly 20131104
Broadband seismometer installed 20131104
Open date is uncertain, but likely to be before 1979.

Data at the ISC for 56 years between 1963 and 2023.

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
================================================================================================================================

ELT    Yel'tsovka                                                    53.25000   86.26670                   25-08-1999 25-08-1999  
       Altayskiy

ELT    Yel'tsovka                                                    53.25300   86.27700    1200.0         25-08-1999 03-03-2000  
       Altayskiy

ELT    Yel'tsovka                                                    53.25300   86.27700     215.0         03-03-2000 22-11-2000  
       Altayskiy