Ashtech Solutions 2.6 [better] -

The double difference residual plot is your best diagnostic tool. If you see a sinusoidal pattern, you are looking at multipath. If you see a drift, you have an unmodeled tropospheric effect.

The software serves as a comprehensive bridge between field data collection and final reporting. Its primary purpose is to process raw satellite data—often referred to as "B-Files"—into actionable coordinate information. Ashtech Solutions 2.6