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However, land surveyors and engineers should utilize access to all the survey metadata to have complete confidence in the deliverable they are preparing.

Any picture taken in the field with the data collectorĪ list of points, their coordinates and a simple field sketch may be technically enough to draft a survey base plan.

The method used to make the observation (Rapid point, Distance offset, Circular object, etc.).

Results of the traverse adjustment computed in the field.

GNSS precision details (PDOP, H, and V precision).Instrument pressure and local temperature.Here are some key data points that aren’t included in most if not all of the most common export formats, to name a few: What do all the above have in common? None of these will provide the office personnel with a complete picture of the original field survey operations since some valuable survey information could have been lost in the process. Others even skip a step and export a DXF CAD drawing straight from their data collectors. For total station observations, some surveyors use the same CSV export format, while others prefer extracting raw data in a text file compatible with their office solution (FBK, RAW, SDR, or FLD are examples of such file formats). This comma-separated text file typically includes the point ID, Northing, Easting, Elevation, and Feature Code of multiple GNSS observations. For example, a common practice for GNSS surveys is to export a CSV file from the data collector.