Map for GNSS reception and supporting evidence
SatellAItes na GNSS analysis tool wey dey work for browser. E bring satellite geometry, public ADS-B observations, weather and space-weather context together. Read each indicator with im source, date and limits.
Open the interactive mapMethods and how to interpret am
Map dey show calculations from real observations. No be direct radio spectrum measurement or certified navigation service.
Jamming wey dem suspect / GNSS quality drop
H3 map grid use resolution 4. Before area fit get suspected mark, all these conditions must hold: at least 5 aircraft for the analysis; at least 3 with low position quality; low-quality share at least 30%; and at least 2 low-quality observations wey dey at least 60 seconds apart. Aircraft wey dey ground, excluded emitter categories, MLAT positions and old positions no enter the evidence.
Fake GNSS signals wey dem suspect (spoofing)
Position jumps on their own na anomalies. If at least three aircraft get similar movement and direction, dem fit form group wey dem suspect. These rules no ever confirm spoofing.
This percentage describe aircraft wey enter the analysis for this area and time window. E no measure radio jamming power, and no be probability say receiver for ground get disruption.
For these observations, we no see position quality drop. This no guarantee normal GNSS reception everywhere for the area.
Share of time wey we fit assess and wey satellite count and PDOP meet the profile thresholds. This no be actual probability of receiving GNSS radio signals. We calculate am every 5 minutes: shorter signal outages fit escape the model. The lower and upper limits account for time intervals wey their state no dey known; dem no be statistical confidence interval.
For RTK, this percentage na only satellite geometry prerequisites. We never assess whether correction data dey available or whether integer carrier-phase ambiguities fit fix.
Sources and where evidence come from
One-time and continuous server collection depend on access wey dem authorize for each area. Regional data remain regional. Global feed stay blocked until dem verify access. You fit see interval, budgets, errors and log. Browser dey refresh only this machine API every 30 seconds. Na one combined source; GPSWise feed no dey used. Observations inside history show the real scope of the service.
OpenStreetMap / OpenMapTiles vector tiles, MapLibre GL dey render am. Countries, cities, roads and labels dey show according to zoom. Commercial use dey allowed; no key or stated usage fees, but no guaranteed SLA. Basemap requests dey go straight to OpenFreeMap.
Questions about GNSS reception
Wetin this GNSS reception map dey show?
Map help you explore aircraft position quality wey aircraft report, satellite visibility and geometry, plus environmental context. Available data depend on source and selected time. Missing data remain unknown.
Position quality wey drop prove say GNSS jamming or spoofing dey?
No. NIC and NACp describe positioning integrity and accuracy wey aircraft report. Degraded indicator fit support more investigation, but e no establish cause or confirm jamming or spoofing.
Satellite visibility na the same thing as probability of radio reception?
No. Visibility and PDOP describe orbit geometry under model assumptions. Actual radio reception still depend on antenna, frequency, terrain, multipath, interference and measured receiver performance.
This map fit guarantee safe drone navigation or RTK positioning?
No. These indicators na for exploration; dem no be certified operational navigation service. RTK still need correction data and carrier-phase ambiguity resolution. Good map result no guarantee reception for one receiver.