OPUS: the Online Positioning User Service, process your GNSS data in . . . How does OPUS processing work? Depending on the duration of your data file, OPUS will use either static or rapid-static processing: Static: Files that are 2 to 48 hours in duration are processed using PAGES static software Your coordinates are the average of three independent, single-baseline solutions, each computed by double-differenced carrier-phase measurements from one of three nearby
OPUS Projects 5. 3 OPUS Projects provides simple management and processing tools for your survey projects involving multiple sites and multiple occupations Advantages include: Customizable data processing via the PAGES software suite Visualization and management aids Adjustments tied to the National Spatial Reference System
Home [www. ngs. noaa. gov] GNSS antenna calibrations for specific antenna types Geodetic Toolkit On-line interactive computation of geodetic values OPUS Projects Processing tools for projects involving multiple sites and multiple occupations UFCORS User Friendly CORS Obtain a specific block of GNSS data, in RINEX format
6. 4. Checking Your OPUS Solution Results — OPUS Projects User Guide v2 . . . 6 4 Checking Your OPUS Solution Results Note that an observation file may be successfully processed in OPUS and loaded into the project despite not meeting the data Quality Thresholds defined in the Project Preferences (Section 4 3, above) If any of the Quality Thresholds are not met, OP will send a warning email message to the project member who is uploading the file The warning message
STEP 8 (OP5): Uploading GVX file (s) — OPUS Projects User Guide v2. 0 . . . OPUS-Projects 5 provides some simple tools for flagging poor data and allowing users to remove outliers or bad measurements Of course, a user may simply view the scatter plots individually, but this may take too much time for large projects Instead, some more tools are available