OPUS Projects User Guide

• Abstract
• Revision History
• Acknowledgements
• Conventions Used Throughout the Document
• Disclaimer
• List of Figures
• Quick Start Guide (includes preliminary OP5 documentation)

---

• 1. Introduction
• 2. NGS Survey Proposal
• 3. Create Your Project in OP
• 4. Review and Edit Project Preferences
• 5. Naming Files Correctly for Best Results in OP
• 6. Loading GNSS Observation Files
• 7. Walking Through OP Visualizations
• 8. Mark Descriptions
• 9. Selecting CORS
• 10. Session Processing
• 11. Network Adjustments

---

• Acronyms and Glossary

Appendices

• A. WinDesc Module for OPUS Projects
• B. How OP Arranges GNSS Observations into Sessions
• C. Coordinates Shifts
• D. How OP Assigns Sigmas on Constrained Marks
• E. FAA Airport Surveys
• F. Tying a Real-Time Network to the NSRS