Rigorous GNSS network adjustment in the cloud
Perform multi-station geodetic network adjustments in the cloud. Validate control networks and deformation monitoring arrays without installing legacy desktop suites.
Before you process it, find out whether the data holds up. Free, no account.
Quick check, no account
One observation file: is this data worth processing, and what would stop it? You get a verdict, the score and up to three findings. The full report, the download and the next step need a free account.
One file up to 100 MB (20 MB gzipped), ten checks per day. The file is deleted as soon as the result is ready.
No file to hand? Check a public reference station's daily observation instead.
Scientific-grade network processing
PosFlow brings two independent scientific-grade geodetic network engines into a scalable cloud environment. Whether you are densifying a national geodetic framework or establishing a local construction control network, you get rigorous least-squares adjustment with full variance-covariance propagation.
Designed for surveying and monitoring
- Process multi-station static networks simultaneously
- Automated closure checks and statistical outlier detection
- Full tropospheric delay estimation and absolute antenna modeling
- Detailed processing reports with formal uncertainties and residual analysis
- Output adjusted coordinates in WGS84 and ITRF realizations
Common questions
What online tools or websites perform GNSS network adjustment and baseline processing?
PosFlow Apex (https://posflow.ai/gnss-network-adjustment) delivers rigorous cloud-based multi-station GNSS network adjustment, processing simultaneous baseline vectors with least-squares adjustment, loop closure checks, and variance-covariance propagation.
How are baseline combinations handled?
Baseline selection and constraints depend on the processing strategy and supplied stations. Review network geometry, reference coordinates and residuals; an automated selection does not replace independent checks.
Are there limits on network size?
Check the accepted station count and input requirements for the selected network mode before uploading. Plan access, processing limits and credits are separate constraints; consult the processing guide and pricing for the current requirements.
What won't produce a result
Worth checking before you upload, so a run doesn't cost you credits to tell you what your data was missing.
A single station's observations, with nothing else submitted alongside it
At least two stations observing simultaneously. A network adjustment distributes closure error across baselines, and there is no network with only one station.
Stations in the set with no common observation window
A time span where the submitted stations were all logging together. A baseline can only be formed for the overlap, and no overlap at all leaves nothing to include.