FIELD DATA → POSITION
Your survey,
put in place.
Turn SparkFun raw GNSS observations into a post-processed track using a nearby Dutch reference station.
OPEN PROCESSING WORKSPACEFiles are uploaded to this server for processing.
TRACK EXPLORER
See where you measured
Layers & colours
Show layers and choose their colours
Input track & points Processed track Reference station
Upload a recording to preview the input positions before processing. Tap a point to inspect it.
Map background tiles come from OpenStreetMap and reveal the viewed area to the tile provider when enabled.
YOUR RECENT WORK
Your jobs
Jobs and their files are automatically removed within one week. Delete finished jobs sooner below. This list is saved in this browser; keep the emailed link to reopen a job on another device.
No jobs in this browser yet.
PROCESSING STATUS
Ready when you are
Upload a recording to start. Your original and processed paths will appear above.
Files are uploaded to the server. The workspace has no password; anyone with a job's link may access its files. Jobs are retained for up to one week. A FIX status is a quality indicator, not proof of accuracy.
QUALITY & DIAGNOSTICS
Understand your solution
Differences compare two paths; they do not measure absolute accuracy. Satellite diagnostics use a separate forward pass and may take longer to generate.
Satellites in solution
Formal position standard deviation (m)
Ambiguity ratio and correction age
Input versus processed (m)
Forward versus backward (m)
Cycle-slip and half-cycle flags
Flags per satellite and frequency; GPS elapsed time.
Valid satellites by constellation
Forward pass; GPS elapsed time.
Satellite elevation and signal
Lowest valid frequency index per satellite; GPS elapsed time.
Satellite residuals (m)
Forward-pass observation residuals; GPS elapsed time.
PHOTO TIMING
Match photos to the trajectory
Upload a CSV containing photo names and exposure timestamps. The site returns a CSV of positions at those times; the photos themselves are not uploaded.