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Bernese GPS Software Version 5.0 - Bernese GNSS Software

Bernese GPS Software Version 5.0 - Bernese GNSS Software

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CENTER OF MASS:<br />

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

15.4 Estimation of Earth Orientation and Geocenter Parameters<br />

COOR. VALUE RMS<br />

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

X 0.0131 0.0009<br />

Y 0.0026 0.0010<br />

Z 0.0088 0.0013<br />

Program ADDNEQ2 gets information concerning geocenter coordinates through the input<br />

normal equation files. The parameters may be deleted, constrained, or pre-eliminated. A priori<br />

constraints may be defined in panel “ADDNEQ2 12: Options for Additional Parameters”.<br />

Since geocenter coordinates may be looked at as a common translation of the reference<br />

coordinates, the estimation of geocenter coordinates may be initiated in ADDNEQ2 even if<br />

the input normal equations do not contain this parameter type (see Section 9.3.8 for more<br />

details). The corresponding option “Set up geocenter coordinates” may be enabled in panel<br />

“ADDNEQ2 3.1: Options 1”. The option has no effect if the input normal equations already<br />

contain geocenter coordinates.<br />

Estimated geocenter coordinates may be written to an output file (default extension GCC,<br />

description in Section 22.7.9) by specifying a filename in the field “Geocenter coordinates” in<br />

panel “ADDNEQ2 2: Output Files”. But also a geocenter input file may be specified in panel<br />

“ADDNEQ2 1: Input Files” allowing to transform a priori values from normal equation files to<br />

external values.<br />

<strong>Bernese</strong> <strong>GPS</strong> <strong>Software</strong> <strong>Version</strong> <strong>5.0</strong> Page 325

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