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Bernese GPS Software Version 5.0 - Bernese GNSS Software

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22. Data Structure<br />

Station sigma file for contraining of site coordinates 25-OCT-03 15:46<br />

--------------------------------------------------------------------------------<br />

Station name sigma1 sigma2 sigma3<br />

**************** **.**** **.**** **.****<br />

AUCK 50209M001 0.0001 0.0001 0.0001<br />

FAIR 40408M001 0.0001 0.0001 0.0001<br />

OHIG 66008M001 0.0001 0.0001 0.0001<br />

THU1 43001M001 0.0001 0.0001 0.0001<br />

WTZR 14201M010 0.0001 0.0001 0.0001<br />

Figure 22.40: Station sigma (SIG) file for the constraining of site coordinates.<br />

One column: Contains clock rms values in microseconds used in program MKCLUS for<br />

the optimum creation of station clusters for clock estimation. Such a file<br />

may be written by CCRNXC.<br />

Two columns: Contains absolute (first column) and relative (second column) sigmas in<br />

meters for the constraining of zenith troposphere parameters (no gradient<br />

estimation). Used by program <strong>GPS</strong>EST.<br />

Three columns: Contains sigma values for the constraining of station coordinates (in meters)<br />

or station velocities (in meters/year) in the north, east, and up components<br />

(first, second, third column). Used by programs <strong>GPS</strong>EST and<br />

ADDNEQ2.<br />

Four columns: Contains sigmas in meters for the absolute (first column) and relative<br />

(second column) constraining of zenith troposphere parameters and for<br />

the absolute (third column) and relative (fourth column) constraining of<br />

tropospheric gradient parameters. Used by program <strong>GPS</strong>EST.<br />

Six columns: Contains sigmas in meters for the absolute (first column) and relative<br />

(second column) constraining of zenith troposphere parameters and for<br />

the absolute (third column) and relative (fourth column) constraining of<br />

tropospheric gradient parameters in north direction and for absolute (fifth<br />

column) and relative (sixth column) constraining of gradient parameters<br />

in east direction. Used by program <strong>GPS</strong>EST.<br />

22.8.14 Station Observation Sigma Factor File<br />

Type: ASCII<br />

Directory: Campaign-specific directory STA.<br />

Extension: SOS<br />

Content: Station observation sigma factors for a list of stations and for specific measurement<br />

types.<br />

Created by: Program RESRMS (”Menu>Service>Residual files>Generate residual statistics”) or using<br />

”Menu>Campaign>Edit station files>Observation sigma factors”<br />

Used by: CODSPP (”Menu>Processing>Code-based clock synchronization”) and <strong>GPS</strong>EST (”Menu<br />

>Processing>Parameter estimation”).<br />

Example: Figure 22.41 and ${X}/DOC/EXAMPLE.SOS.<br />

Page 528 AIUB

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