Bernese GNSS Software Version 5.2 Tutorial

7.1 Preparing Combined GPS and GLONASS IGS–OrbitsThe resulting filename consists of the solution identifier (“First four characters”) and thesession of the first epoch (if “Reference epoch for output files” is empty). The referenceepoch may also be specified by the user as the above example shows. Using the inputoptions from above panel we expect the result file named as ${P}/INTO/ORB/GNSS2070.PRE.In the next panel you may specify the time window for which the satellite positions shallbe included in the resulting precise orbit file.7.1.3 Generating Standard Orbit FilesThe subsequent steps to create the so–called standard orbit files from precise orbitfiles are again analogue to the standard procedure using CODE products as detailed inSect. 3.2 .The first step is the conversion into tabular orbit files (TAB) using the program PRETAB("Menu>Orbits/EOP>Create tabular orbits"). The merged GPS/GLONASS precise orbit file is chosenas input and IGS–related output files are recommended.Bernese GNSS Software, Version 5.2 Page 103