Sources and licences
Every source Noisefloor uses, considered or rejected, with its licence and how it may be used. A source can't feed a public layer until its licence is recorded. "Unverified" means the terms haven't been confirmed yet.
151sources assessed
43Feeds a layer
35Later phase
27Cited, not ingested
22Excluded
15After permission
6Visual comparison only
3Private watch only
| Source | Topic | What it gives | Licence | Commercial use | How we use it | Roadmap phase |
|---|---|---|---|---|---|---|
| ACLED | Attribution | Conflict events | ACLED EULA: non-commercial licence only; commercial entities need a corporate licence; no redistribution, no scraping | Ask | After permission | 6 |
| ACMA RRL / ISED / Ofcom registers | Attribution | Licensed transmitters (AU/CA/UK) | ACMA: custom licence (derivatives OK, attribute, no natural-person data); ISED: OGL-Canada; Ofcom: OGL generally, register file unconfirmed | Unverified | After permission | 6 |
| Asia Maritime Transparency Initiative (CSIS) | Attribution | South China Sea analysis and imagery reports | Copyright (cite-only) | Unverified | Cited, not ingested | 4 |
| FCC ULS | Attribution | US licensed transmitters | US gov | Yes | Feeds a layer | 6 |
| Gattis, Cydejko & Akos 2026: TDOA fixes of Baltic GNSS interference | Attribution | Emitter fixes from a TDOA network on the Gulf of Gdansk, Apr-Jun 2025 (coastal site on the Sambia peninsula; Baltiysk harbour) | CC BY 4.0 (article licence statement) | Yes | Cited, not ingested | 1 |
| GDELT | Attribution | Conflict and event context | Free, unrestricted use incl. commercial; redistribution allowed with GDELT citation and link (About page) | Yes | After permission | 6 |
| HawkEye 360 public reports | Attribution | RF-geolocation case studies (commercial data) | Copyright (cite-only); underlying data paid | Unverified | Cited, not ingested | 4 |
| ITU MIFR | Attribution | International frequency register | ITU holds copyright; BR IFIC (MIFR data) is member-free or paid subscription, single named user; no open licence | Ask | Later phase | 6 |
| Kratos public threat briefings and SDA tracker posts | Attribution | Vendor-geolocated SATCOM uplink jamming and GNSS analyses in free public posts | Vendor copyright; free to read; terms not read (UNVERIFIED). Summarize and link, never reproduce figures | Unverified | Cited, not ingested | – |
| OpenCelliD | Attribution | Cell tower locations | CC BY-SA 4.0 incl. API results and downloads (OpenCelliD docs); attribution and ShareAlike; API key needed | Yes | Later phase | 6 |
| OpenSanctions | Attribution | Merged sanctions and PEP lists | CC BY-NC 4.0 for non-commercial use; commercial licence paid (to verify) | No | Excluded | – |
| OpenStreetMap (Overpass) | Attribution | Mast/antenna/radar tags | ODbL 1.0 | Yes | Feeds a layer | 6 |
| OurAirports navaids | Attribution | Navaid locations and frequencies | Public domain | Yes | Feeds a layer | 6 |
| SeaLight (Stanford Gordian Knot Center) | Attribution | Gray-zone maritime analysis, South China Sea | Copyright (cite-only) | Unverified | Cited, not ingested | 4 |
| UK sanctions list (FCDO) | Attribution | Designated ships and owners | Open Government Licence v3.0 (gov.uk publication page, read 2026-10-24); attribution 'Contains public sector information licensed under the Open Government Licence v3.0' | Yes | Feeds a layer | 4 |
| US Treasury OFAC sanctions list (SDN) | Attribution | Sanctioned vessels by IMO number, owners | US government work, not subject to copyright (17 U.S.C. 105; OFAC pages state no terms, checked 2026-10-24) | Yes | Feeds a layer | 4 |
| WiGLE | Attribution | Wi-Fi/cell observations | Non-commercial | No | Excluded | – |
| WMO Radar Database | Attribution | Weather radar sites and bands | Restricted access | Ask | After permission | 6 |
| Bawa et al. 2025 Telegram dataset | Community | 518 channels; ~5.2M posts Dec 2020-Apr 2023 | CC BY 4.0 on the Figshare record (compilers' rights only); posts are third-party Telegram content, Telegram terms still apply | Ask | Later phase | 6 |
| Bluesky (Jetstream and public AppView API) | Community | Public posts and threads incl. image alt text | Bluesky ToS licenses content to Bluesky only; no API, scraping or reuse terms; Developer Guidelines require deletion on user request | Ask | Cited, not ingested | 6 |
| GitHub public activity feeds | Community | Pushes and releases by researchers who publish tools (e.g. Loran/Chayka, VLF DF, GNSS RO) | GitHub ToS: public content licensed to other users only via the Service (forking); repo licences vary; AUP allows research and archival use | Ask | Cited, not ingested | 6 |
| Mastodon | Community | Public posts | Per-instance ToS; mastodon.social (effective 2026-08-31): authors keep ownership, operator licence only; no scraping or commercial clause | Ask | Cited, not ingested | 6 |
| OPSGROUP public blog | Community | Crew reports of GNSS jamming and spoofing by route and FIR, summarized in public posts | Copyright OPSGROUP; public posts free to read; member-only reports gated and excluded; terms not read (UNVERIFIED) | Unverified | Cited, not ingested | – |
| Reddit API (free tier) | Community | Posts in radio/aviation/defense subreddits | Non-commercial free tier | No | Excluded | – |
| Reddit history (Arctic Shift; Academic Torrents) | Community | Historical posts | Reddit terms (non-commercial) | No | Excluded | – |
| RSS: GNSS and defense trade press | Community | Articles (RNTF, GPS World, Inside GNSS, Naval News, etc.) | Copyrighted articles | Unverified | Cited, not ingested | 6 |
| sigidwiki | Community | Signal identification wiki changes | No licence stated; site disclaims owning contributed content, is a non-profit public-benefit wiki, takes no commercial licence | Ask | Cited, not ingested | 6 |
| Telegram public channels | Community | Milblogger and unit channels | Telegram ToS bans data scraping; content-licensing terms bar access to user content beyond ordinary intended use as a user | No | Visual comparison only | 6 |
| WarSpotting API | Community | Russian losses by type/date/location/unit | All rights reserved (analysis only) | Ask | After permission | 6 |
| X | Community | Posts | Paid | No | Excluded | – |
| CAS ROTI maps | Context | ROTI | Non-commercial | No | Excluded | – |
| Copernicus Marine Service (waves, currents) | Context | Ocean currents and wave forecasts and reanalyses | Copernicus Marine licence: free incl. commercial with attribution (UNVERIFIED) | Unverified | Later phase | 4 |
| e-CALLISTO | Context | 45-870 MHz solar radio spectrograms | Free access for everybody; credit FHNW/IRSOL; contact host before use; co-author invite expected; no licence named | Ask | Later phase | 6 |
| ECMWF open data (IFS forecasts) | Context | Wind, waves and pressure forecasts | CC BY 4.0 (UNVERIFIED) | Unverified | Later phase | 4 |
| EGNOS service notices, historical status and monthly performance reports | Context | SBAS service outages and degradations in Europe (e.g. total loss of SiS 13-17 Oct 2025) | ESSP legal notice (egnos.gsc-europa.eu): no use, copying or distribution without ESSP's prior written authorisation | Ask | Cited, not ingested | 2 |
| EOX Sentinel-2 cloudless mosaics | Context | Yearly 10 m cloud-free mosaics, 2016-2025 | CC BY-NC-SA 4.0 for non-commercial use; commercial use incl. web services needs a paid EOX Commercial licence (one EOX page lists 2016 as CC BY 4.0; unconfirmed) | No | Excluded | – |
| ERA5 refractivity (Copernicus CDS) | Context | Refractivity for ducting checks | CC BY 4.0 since 2 July 2025, replacing the Licence to use Copernicus Products (ECMWF forum notice https://forum.ecmwf.int/t/cc-by-licence-to-replace-licence-to-use-copernicus-products-on-02-july-2025/13464, seen via search 2026-10-25; the CDS licence page itself not re-read). Free CDS account; accept the licence once | Yes | Feeds a layer | 6 |
| ESA SWE federated RTIM (Norwegian Mapping Authority) | Context | Per-satellite 1-min S4 and sigma-phi tables (.scn) from six Norwegian Arctic receivers (Bodo, Tromso, Honningsvag, Jan Mayen, Bjornoya, Hopen) since Jun 2012; gridded ROTI, VTEC, GIVE maps about 50-85N, 70W-40E since May 2000 | ESA gives no rights in third-party data (S2P T&C 5.1); Kartverket free products are CC BY 4.0, RTIM product not confirmed | Unverified | After permission | 6 |
| ESA SWE ISM ionospheric nowcast (CLS) | Context | Worldwide S4, sigma-phi and TEC nowcast, 2.5 deg grid, hourly; current hour only (no archive) | ESA S2P Space Weather Data Terms: use, processing and derived products/services allowed; data not sold, licensed or redistributed for commercial gain; raw redistribution only to parties accepting the terms; credit "Data provided by the European Space Agency (ESA) as part of its Space Safety Programme (S2P)" and "(c) ESA (year)" | Yes | Feeds a layer | 6 |
| Esri World Imagery via ArcGIS Location Platform | Context | Sharp current imagery (15 cm-1.2 m, Vantor Vivid and community aerial) as a map layer | ArcGIS Location Platform Agreement E204 (rev. 21 Nov 2025): commercial deployment licence; 11.4 no access to, by or from US-embargoed countries and regions (Iran, Syria, North Korea, Cuba, Crimea, DNR, LNR) and none provided to Russia or Belarus; 3.1.c.5 site terms must bind users; visualisation only; attribution 'Powered by Esri' and 'Esri, Vantor, Earthstar Geographics, and the GIS User Community' | Yes | Feeds a layer | 2 |
| Esri World Imagery Wayback (archived versions) | Context | 197 versions of World Imagery, 20 Feb 2014 to 24 Sep 2026, for a sharp-imagery time slider | Items: 'licensed under the Esri Master License Agreement'; no licence found for showing the tiles on third-party sites | Ask | After permission | 2 |
| FAA WAAS NOTAMs and status | Context | WAAS outages and LPV unavailability in North America | US gov | Yes | Feeds a layer | 2 |
| GEBCO global bathymetry grid | Context | Seabed depth; shoals and reefs | GEBCO terms of use (UNVERIFIED; believed public-domain-like with attribution) | Unverified | Later phase | 4 |
| GFZ Potsdam Kp index | Context | 3-hourly planetary geomagnetic index | CC BY 4.0 | Yes | Feeds a layer | 1 |
| GIRO ionosondes | Context | Ionosonde data | CC BY-NC-SA 4.0 (LGDC Rules of the Road): educational and non-commercial research only | No | Visual comparison only | 6 |
| Google Maps Platform Map Tiles API (satellite) | Context | Sharp current satellite tiles | Google Maps Platform ToS: 3.2.3(e) no use 'with or near a non-Google Map'; tiles for visualisation only (no image analysis or object detection); budgets don't cap spending. Google Earth imagery: no commercial use on the web; Earth may not be embedded | Unverified | Excluded | – |
| Mapbox Satellite raster tiles | Context | Satellite tiles, 0.3-2 m | Mapbox Product Terms (20 Oct 2026): 1.2.3 business intelligence or analytics needs a paid commercial licence; 1.6 no deriving or extracting | Unverified | Excluded | – |
| MapTiler Satellite | Context | Satellite tiles, 2 m global | MapTiler Cloud terms 1.2: 'Usage of the Free Plan is limited to non-commercial use' | No | Excluded | – |
| Marine Regions (VLIZ): EEZs and maritime boundaries | Context | EEZ and boundary polygons | CC BY 4.0 (UNVERIFIED) | Unverified | Later phase | 4 |
| Marine Regions World EEZ v12 and Internal Waters v4 (Flanders Marine Institute) | Context | Maritime zones: EEZ and internal waters by coastal state | CC BY 4.0 (marineregions.org/disclaimer.php, read 2026-10-25); asks that products not be offered for download elsewhere | Yes | Feeds a layer | 4 |
| Microsoft Planetary Computer data API: Sentinel-2 L2A and Sentinel-1 GRD mosaic tiles | Context | Sea map imagery layers: 10 m Sentinel-2 true colour (clearest scenes first) and Sentinel-1 radar VV (latest pass first), by month, plus the date of the image at the map centre (STAC search) | Data: Copernicus Sentinel data legal notice (free incl. commercial; 'Contains modified Copernicus Sentinel data [year]'). Service: Planetary Computer Supplemental Terms for Previews (not meant for production but not prohibited; may change or end without notice; no SLA) | Yes | Feeds a layer | 2 |
| MIT Madrigal TEC | Context | TEC and scintillation context | CEDAR Rules of the Road: acknowledge DB, contact data providers early, share only with access-form holders; commercial use not addressed | Ask | Later phase | 6 |
| NASA GIBS / Worldview imagery | Context | Daily MODIS/VIIRS true colour (250 m, since 2000) and HLS (30 m, Landsat and Sentinel-2) with a date in the tile URL | NASA open data policy (full and open sharing); acknowledgement requested: 'We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS).' | Yes | Later phase | – |
| Natural Earth (land, admin-0, populated places, geography regions, marine areas) | Context | Basemap land and coastlines; country, place, region and sea names for wording | Public domain | Yes | Feeds a layer | 1 |
| NGA World Port Index | Context | Ports and anchorages with positions | US government; NGA site policy: 'considered public information and may be distributed or copied' | Yes | Feeds a layer | 4 |
| NOAA GFS and WAVEWATCH III | Context | Global weather and wave forecasts | US gov public domain (to verify) | Yes | Later phase | 4 |
| NOAA GloTEC | Context | Global TEC | US gov public domain | Yes | Feeds a layer | 1 |
| NOAA SWPC alerts, solar radio flux and events | Context | Space-weather alerts and warnings; daily solar radio flux at 245 MHz-15.4 GHz from the USAF RSTN observatories; fixed-frequency radio bursts (edited events) | US gov public domain | Yes | Feeds a layer | 2 |
| TeleGeography Submarine Cable Map | Context | Submarine cable routes and landing points | Believed non-commercial (UNVERIFIED) | Unverified | Later phase | 4 |
| UNECE UN/LOCODE | Context | Location codes for ports | Footer says CC BY 4.0, but site terms limit downloads to personal, non-commercial use without redistribution | No | Excluded | 4 |
| University of Wyoming soundings | Context | Radiosonde soundings for ducting | No terms stated on weather.uwyo.edu (footer gives a contact for data questions only) | Unverified | Later phase | 6 |
| BALTICO navigational warnings (Swedish Maritime Administration) | Declared | Baltic Sea navigational warnings in force, incl. GNSS/AIS interference notices (e.g. BALTIC SEA NAV WARN 030/26) | No terms of use or copyright statement on the page (read 2026-10-26); an official safety broadcast, public by design | Unverified | Cited, not ingested | 6 |
| China MSA navigational warnings | Declared | Live-fire and exercise areas, navigational warnings | Terms UNVERIFIED | Unverified | Later phase | 4 |
| EASA CZIBs and SIB 2022-02 | Declared | Conflict-zone and standing GNSS interference bulletins | EASA copyright notice: reproduction authorised with the source acknowledged, save where otherwise stated | Yes | Cited, not ingested | 2 |
| EASA GNSS outages and alterations: affected FIRs | Declared | Weekly and 30-day tables of FIRs with GNSS interference reports, with a separate spoofing column; SIB 2022-02R4 | EASA copyright notice (easa.europa.eu/copyright-disclaimer, read 2026-10-27): reproduction authorised, provided the source is acknowledged, save where otherwise stated | Yes | Feeds a layer | 6 |
| Estonian Transport Administration (Transpordiamet) notices | Declared | Joint Estonia-Finland navigation warning on GNSS interference in the Gulf of Finland (17 Jun 2025) | Not checked; Estonian public authority news item | Unverified | Cited, not ingested | 6 |
| FAA EW impact reports | Declared | Pilot-report compilations by region | US gov | Yes | Cited, not ingested | 2 |
| FAA NOTAM Management Service | Declared | GPS tests and interference NOTAMs | US gov | Ask | After permission | 4 |
| FAA SPANS GPS interference testing flight advisories | Declared | Planned GPS test windows (dates and times in Z) with centre point and radius by altitude | US gov | Yes | Feeds a layer | 2 |
| Finnish Notices to Mariners (Traficom) | Declared | Fortnightly notices incl. the running Gulf of Finland GNSS and AIS interference notice (*165/2026, *182/2026) | Not checked beyond the notices themselves; Finnish public authority publication | Unverified | Cited, not ingested | 6 |
| IARU Region 1 monitoring newsletters | Declared | Monthly OTH radar/jammer/intruder logs | No reuse licence; IARU R1 site footer reserves copyright generally; newsletters are IARUMS R1 work | Ask | Cited, not ingested | 6 |
| ICC IMB Piracy Reporting Centre | Declared | Live piracy map and reports | Terms UNVERIFIED | Unverified | Cited, not ingested | 4 |
| ITU RRB summaries of decisions | Declared | Formal satellite-jamming and GNSS-jamming cases | ITU terms of use: personal, educational or non-commercial use with acknowledgement; no reproduction, redistribution or derivatives without written permission | Ask | Cited, not ingested | 3 |
| Jammertest test catalog and transmission plans (NPRA) | Declared | Per-test transmission windows, power and signals at Andoya test areas (Jammertest, Sep each year) | MIT | Yes | Cited, not ingested | 2 |
| JMIC advisory notes (Combined Maritime Forces) | Declared | Regional maritime threat and GNSS/AIS interference assessments (Arabian Gulf, Hormuz, Red Sea) | CMF partner material; no reuse terms found (not covered by ukmto.org OGL) | Unverified | Cited, not ingested | 2 |
| MARAD MSCI advisories | Declared | Maritime GNSS/AIS interference advisories | US gov | Yes | Feeds a layer | 2 |
| NASA ASRS | Declared | Pilot narratives; long GPS-loss baseline | US gov | Yes | Cited, not ingested | 6 |
| NAVAREA VIII warnings (Indian Navy) | Declared | Navigational warnings for the northern Indian Ocean | Terms UNVERIFIED | Unverified | Later phase | 4 |
| NGA MSI broadcast warnings | Declared | NAVAREA IV/XII and HYDROLANT/HYDROPAC warnings incl. GPS mentions | US gov; NGA site policy treats content as public, free to copy and distribute unless marked otherwise; credit requested | Yes | Feeds a layer | 2 |
| ReCAAP ISC incident reports (Asia) | Declared | Piracy and armed robbery incidents in Asia | Terms UNVERIFIED | Unverified | Cited, not ingested | 4 |
| Satellite operator disclosures | Declared | Operator-reported jamming (e.g. Eutelsat on Iran 2022) | Per source | Unverified | Cited, not ingested | 3 |
| UKMTO warnings and advisories | Declared | Maritime security warnings; JMIC notes carry the GNSS/AIS picture | Open Government Licence (T&C clause 20; version not stated, v3.0 assumed; page updated 2016-08-18); Crown copyright | Yes | Feeds a layer | 2 |
| USCG NAVCEN GPS interference test notices | Declared | Test areas with coordinates and radii | US gov | Yes | Feeds a layer | 2 |
| USCG NAVCEN GPS problem reports | Declared | Anonymized user GNSS problem reports | US gov | Yes | Feeds a layer | 2 |
| ArcticDEM strips | Emitters | 2 m time-stamped DEMs 2007-present | CC BY 4.0 (PGC guide, AWS Open Data); Alaska data from June 2022 on is not public (EOCL restriction); PGC acknowledgement policy applies | Yes | Later phase | 7 |
| CONAE/ASI SAOCOM-1 Level 1 (L-band SAR) | Emitters | L-band (1275 MHz) SAR, SLC and detected products | ASI-CONAE terms: free of charge through ASI after project evaluation; ASI (Jun 2025): commercial use not implemented yet; ESA third-party terms for CAT-1 users (Feb 2023) | Ask | Later phase | – |
| Copernicus Sentinel-1 L1 RFI annotation | Emitters | Per-burst time-domain share of lines with RFI, isolated/persistent RFI share of bandwidth, noise pre-screen flags and max RFI PSD (C-band emitters); IPF 3.40+ (Nov 2021), burst-level reports from Mar 2022 | Copernicus Sentinel data legal notice (free incl. commercial; attribution 'Contains modified Copernicus Sentinel data [year]') | Yes | Feeds a layer | 5 |
| DWD weather radar volumes | Emitters | ODIM volumes (RFI spokes; DWD method) | CC BY 4.0 (DWD legal notice; all free geodata and HVD) | Yes | Feeds a layer | 5 |
| ESA Biomass Level 1 (P-band SAR) | Emitters | P-band (435 MHz) SAR with RFI metadata; switched off over Europe and North America to protect US space-tracking radars | ESA T&C for ESA EO data (ESA-EOPG-PDGS-PR-1, issue 1.1, 20 Sep 2023; covers Earth Explorer and Scout missions) and ESA Data Policy (Oct 2012; all types of use incl. commercial). Results may be published (B.9) with 'Data provided by the European Space Agency (ESA)' (B.10) and '(c) ESA <year of reception>' on data and analysed information (C.2). The data themselves may go only to recipients who accept the T&C (B.5), so raw data are never republished | Yes | Later phase | – |
| ESA SMOS RFI | Emitters | L-band (1.4 GHz) emitter maps | ESA T&C for ESA EO data (ESA-EOPG-PDGS-PR-1, issue 1.1, 20 Sep 2023; covers Earth Explorer and Scout missions) and ESA Data Policy (Oct 2012; all types of use incl. commercial). Results may be published (B.9) with 'Data provided by the European Space Agency (ESA)' (B.10) and '(c) ESA <year of reception>' on data and analysed information (C.2). The data themselves may go only to recipients who accept the T&C (B.5), so raw data are never republished | Yes | Later phase | 7 |
| ESA/Aresys Sentinel-1 RFI maps | Emitters | Per-cycle RFI probability maps since Jun 2019 | No terms or licence stated on s1rfimap.aresys.it (joint Aresys/ESA site; footer (c) 2026 S-1 RFI Maps, powered by Aresys) | Unverified | Visual comparison only | 5 |
| EUMETNET OPERA / Open Radar Data API | Emitters | Composites and volumes; radar site list | CC BY 4.0 for OPERA composites; single-site volumes CC BY 4.0 with exceptions noted in metadata | Yes | After permission | 5 |
| FMI weather radar volumes | Emitters | Raw ODIM HDF5 from every Finnish radar (RFI spokes) | CC BY 4.0 | Yes | Feeds a layer | 5 |
| Google Earth Engine (Bellingcat RIT runs here) | Emitters | Monthly RFI composites | Non-commercial tier | No | Excluded | – |
| JAXA ALOS-2 PALSAR-2 ScanSAR Level 2.2 | Emitters | L-band (1257.5 MHz) SAR images, HH and HV, 4 Aug 2014 to 30 Sep 2026 in the open bucket (236,196 scenes listed 31 Oct 2026; JAXA's page says to Jul 2025); interference visible only as streaks in the images | JAXA: free of charge, subject to each platform's terms of use. ASF EULA for ALOS-2 ScanSAR: non-commercial use only, no commercial use of the data or derived products; rights stay with JAXA | No | Later phase | – |
| NASA SMAP radiometer RFI flags (L1C, SPL1CTB v006) | Emitters | Per 36 km cell, look and polarization: RFI detected (bit 2) and residual RFI (bit 15) in 1400-1427 MHz; a 7-day flagged share and a 100-300 km ring contrast; stand-out cells are mostly L-band radars | NASA open data (ESDIS: NASA-led mission data CC0); NSIDC asks for citation: SMAP L1C Radiometer Half-Orbit 36 km EASE-Grid Brightness Temperatures, Version 6, doi:10.5067/DV7IX2DQ681Y | Yes | Feeds a layer | 7 |
| NISAR L1 RSLC tone-rank RFI tables | Emitters | Per-block interference-to-signal ratio, signal mean and per-frequency pulse-hit share written by the RSLC processor (tone-rank, PROVISIONAL products); emitter detection, frequency signature and geolocation | NASA Earth science data: CC0 unless marked; CMR collection NISAR_L1_RSLC_PROVISIONAL_V1 is FreeAndOpenData under NASA ESDIS Data Use and Citation Guidance (checked 2026-10-21) | Yes | Feeds a layer | 7 |
| NISAR L2 GCOV (L-band SAR) | Emitters | L-band emitters inside NISAR receive bands (1219-1239 MHz incl. GPS L2; 1291-1296 MHz) from cross-pol excess; processor rfiLikelihood per channel | NASA Earth science data: CC0 unless marked (earthdata.nasa.gov data use policy); NISAR docs follow NASA data use and citation guidance | Yes | Feeds a layer | 7 |
| open-air-data/atc-radar (FAA radar site file, Mar 2010) | Emitters | US FAA/USAF radar site IDs and coordinates (beacon antennas co-located with ARSR/FPS-117 etc.); reference positions for the NISAR known-radar check | Compilation ODbL 1.0, contents DbCL 1.0 (copyright 2013 J. Wiseman); underlying FAA data US government | Yes | Cited, not ingested | 7 |
| Umbra open SAR | Emitters | 16 cm-1 m X-band samples | CC BY 4.0 | Yes | Later phase | 7 |
| ADS-B Exchange | GNSS observed | Live ADS-B | Community tier non-commercial; enterprise by quote | No | Excluded | – |
| adsb.fi open data | GNSS observed | Live ADS-B with nac_p | Personal non-commercial | No | Excluded | – |
| adsb.lol daily archive (globe_history) | GNSS observed | Worldwide readsb traces with nic/nac_p/sil/version/gva/alt_geom; ~3.7 GB/day; posted ~03:25 UTC next day | ODbL 1.0 (feeders waive under CC0) | Yes | Feeds a layer | 1 |
| adsb.lol live API | GNSS observed | Near-real-time incl. nic/nac_p/gpsOkBefore; point queries up to 250 NM | ODbL 1.0 | Ask | After permission | 2 |
| airplanes.live | GNSS observed | Live ADS-B | Terms: no commercial use or automated access without approval | No | Excluded | – |
| Copernicus Sentinel-1/2/3 GNSS receiver RINEX (AUX_GNSSRD) | GNSS observed | Onboard navigation-receiver signal strength every 10 s: GPS S1C/S1W/S2W on all units, plus S2L and Galileo S1C/S5Q on Sentinel-1C, 1D and 2C | Copernicus Sentinel data legal notice (free incl. commercial; attribution 'Contains modified Copernicus Sentinel data [year]') | Yes | Later phase | 7 |
| CORS / IGS RINEX (incl. IGS MGEX) | GNSS observed | Station SNR/C/N0 for interference (SWEPOS method); multi-constellation | IGS (via CDDIS) open to commercial users, attribution required; NOAA CORS open; other national portals NOT checked | Yes | Later phase | 7 |
| COSMIC-2 radio occultation | GNSS observed | Per-link RFI index (podTc2 variable RFI, threshold 1e-4) with GPS L1 and L2 SNR at 1 Hz; deep-occultation SNR as ground jamming power (Wu 2024) | UCAR data terms: CC BY 4.0 for copyrightable material, any lawful purpose otherwise; dataset record: access constraints none | Yes | Feeds a layer | 7 |
| ESA HydroGNSS Level 1 (GNSS-R, L1/E1 and L5/E5a) | GNSS observed | Delay-Doppler maps at L1/E1 and L5/E5a in both circular polarizations, with measured noise power; near-polar coverage (2 satellites, sun-synchronous, about 550 km; launched 28 Nov 2025) | ESA T&C for ESA EO data (ESA-EOPG-PDGS-PR-1, issue 1.1, 20 Sep 2023; covers Earth Explorer and Scout missions) and ESA Data Policy (Oct 2012; all types of use incl. commercial). Results may be published (B.9) with 'Data provided by the European Space Agency (ESA)' (B.10) and '(c) ESA <year of reception>' on data and analysed information (C.2). The data themselves may go only to recipients who accept the T&C (B.5), so raw data are never republished | Yes | Later phase | 7 |
| EUMETSAT Metop GRAS radio occultation | GNSS observed | Missed and degraded occultations as an RFI indicator; EUMETSAT found a rise from 2021 to 2024, particularly in Eastern Europe | UNVERIFIED: EUMETSAT data policy not read | Unverified | Later phase | 7 |
| EUREF Permanent Network (EPN) RINEX via BKG GNSS Data Center | GNSS observed | Station C/N0 (RINEX 3 S observables), 30 s daily and 1 Hz files, about 380 European stations; broadcast navigation | CC BY 4.0 by default; a station operator may declare CC0 (EPN Data Access and Use Policy, 2 Jul 2026) | Yes | Feeds a layer | 7 |
| GPSJam daily hex files | GNSS observed | Daily % aircraft with low NACp per H3 res-4 hex; score 100*(bad-1)/(good+bad) | No licence; built on airplanes.live and ADSBx | No | Visual comparison only | 1 |
| NASA CYGNSS L1 (GNSS-R) | GNSS observed | Delay-Doppler maps and SNR within +/-38 deg latitude; jammer localization method | NASA open data: ESDIS puts NASA-led mission data under CC0; PO.DAAC product page has no licence line | Yes | Feeds a layer | 7 |
| OpenSky Network | GNSS observed | REST has no NIC/NACp; Trino for researchers and government | Commercial use needs a licence | No | Excluded | – |
| SAT-JAM: Satellite GNSS Interference Map (DTU) | GNSS observed | Share of low-C/N0 observations per ~300 km cell from Sentinel-1C/1D/2B/2C/3A/3B receivers, rolling ~6-week window, refreshed nightly | No licence or terms stated on sat-jam.com (read 2026-10-30); asks to be cited as Bostani Nezhad, K. (2026), SAT-JAM: Satellite GNSS Interference Map | Unverified | Cited, not ingested | 7 |
| Sentinel-6A GNSS radio occultation (EUMETSAT Level 1B) | GNSS observed | Radio occultation profiles from a near-polar orbit; whether SNR profiles are included is unchecked | UNVERIFIED: Copernicus mission data; terms not read | Unverified | Later phase | 7 |
| Sentinel-6A GNSS-RO-POD tracking data, hourly RINEX (PO.DAAC) | GNSS observed | 1 Hz GPS signal strength (S1C, S1W, S2W, S2X) from Sentinel-6A's TriG receiver (66 deg inclination, about 1,340 km); with orbit and GPS geometry, a per-second index of interference in view, mapped to H3 res-2 regions | PO.DAAC: data 'openly shared, without restriction', citation expected (doi:10.5067/S6AGN-1ROPD); Sentinel-6 is a Copernicus Sentinel mission (free, full and open; credit 'Contains modified Copernicus Sentinel data [year]') | Yes | Feeds a layer | 7 |
| Stanford RFI maps | GNSS observed | ADS-B jamming and spoofing maps | CC BY-NC 4.0 | No | Visual comparison only | 1 |
| Virginia Tech GNSS RFI map | GNSS observed | Interference across ~1264 CORS/IGS stations | No terms stated; site only asks to be cited when its analysis or visualizations are used | Unverified | Visual comparison only | 7 |
| DF6NM DL0AO LoranGrabber (Chayka) | LF/HF | LF 88-112 kHz monitor image from Amberg DE; Loran/Chayka on/off | No terms stated (personal amateur site; none on df6nm.de or vlf.u01.de pages read) | Unverified | Private watch only | 2 |
| HFCC schedules / EiBi lists | LF/HF | HF broadcast baseline | EiBi README: anyone may download, use, copy, distribute; HFCC: schedules freely available but all rights reserved, no licence | Ask | Later phase | 6 |
| KiwiSDR public receivers | LF/HF | HF waterfalls and TDoA; LF from some sites | Per-receiver owner terms; no central licence found; kiwisdr.com says its own page content is not open source | Ask | Later phase | 7 |
| YaDDNet DSC logs | LF/HF | Volunteer-decoded MF/HF DSC calls (MMSI, call type, positions in distress) | Terms UNVERIFIED | Unverified | Later phase | 4 |
| AISHub | Maritime | AIS | Contributor terms | No | Excluded | – |
| aisstream.io | Maritime | Global live AIS WebSocket | No terms of service or licence published; site calls it a free API; README asks users to open an issue | Ask | Private watch only | 4 |
| BarentsWatch live AIS API (Kystverket open AIS) | Maritime | Norway's open AIS: positions and static data in the Norwegian economic zone, Svalbard and Jan Mayen zones (Finnmark, western Barents Sea); latest-per-ship snapshot and SSE stream | NLOD unless an API says otherwise (barentswatch.no API terms, read 2026-10-28); credit 'Data delivered by BarentsWatch' and the data owner (Kystverket); terms also say 'You cannot change the data content' | Yes | After permission | 4 |
| Copernicus Sentinel-1 GRD imagery (ship detection) | Maritime | C-band radar images for detecting ships regardless of AIS | Copernicus Sentinel data legal notice (free incl. commercial), as for sentinel1-rfi | Yes | Feeds a layer | 4 |
| Copernicus Sentinel-2 optical imagery | Maritime | 10 m optical images to confirm radar ship detections and size vessels | Copernicus Sentinel data legal notice (free incl. commercial; attribution 'Contains modified Copernicus Sentinel data [year]') | Yes | Feeds a layer | 4 |
| Danish historical AIS (Danish Maritime Authority; system now under the Danish Emergency Management Agency) | Maritime | Daily CSV archives of AIS in Danish waters incl. Bornholm and the western Baltic, from 2006 (monthly early years); about 600 MB a day zipped; includes the type of position-fixing device | Re-use under the Danish PSI act no. 596 of 24 June 2005 (AIS data management policy, dma.dk, read 2026-10-25); data must not be combined to make persons identifiable; attribution, redistribution and publication of derived data not addressed | Unverified | After permission | 4 |
| Digitraffic AIS (Finland) | Maritime | AIS in Finnish waters incl. Gulf of Finland; REST and MQTT | CC BY 4.0 (terms page read 2026-10-24); attribution 'Source: Fintraffic / digitraffic.fi, license CC 4.0 BY' | Yes | Feeds a layer | 4 |
| EU port-access ban vessel list (Council Regulation 833/2014, Annex XLII) | Maritime | Vessels banned from EU ports and services by IMO number | EUR-Lex reuse allowed with acknowledgement (Commission Decision 2011/833/EU; not re-read) | Unverified | Later phase | 4 |
| Global Fishing Watch | Maritime | AIS-derived | CC BY-NC | No | Excluded | – |
| Kystverket AIS (Norway) | Maritime | Norwegian coast to Finnmark; TCP feed and BarentsWatch API | NLOD 2.0 | Yes | Feeds a layer | 4 |
| NOAA MarineCadastre AIS | Maritime | US waters 2009-2025 | US gov data (NOAA OCM/BOEM from USCG NAIS); InPort use constraint: coastal and ocean use planning, not for navigation; no licence field | Ask | After permission | 4 |
| OpenStreetMap land polygons (osmdata.openstreetmap.de) | Maritime | Land polygons from OSM coastlines, incl. small islands and skerries Natural Earth misses | ODbL 1.0 (OpenStreetMap contributors) | Yes | Feeds a layer | 5 |
| USGS Landsat 8/9 Collection 2 | Maritime | 30 m optical (15 m pan) images for ship confirmation | USGS: public domain, no restrictions (to verify) | Yes | Later phase | 4 |
| VIIRS Boat Detection (Earth Observation Group) | Maritime | Lit boats at night, nightly detections and monthly grids | No formal licence found; detections older than 45 days free to the public; credit EOG (product page) | Ask | Later phase | 4 |
| VIIRS Nightfire (Earth Observation Group) | Maritime | Gas flares and hot sources at night (platforms, FPSOs, burning ships) | Terms UNVERIFIED (as VBD: credit EOG) | Unverified | Later phase | 4 |
| CelesTrak GP data | SATCOM | GEO orbital elements (GP: OMM; TLE only for catalogue numbers up to 99999) for the GEO threat board | No licence or copyright statement of its own (usage policy only, updated 2026-05-22; re-read 2026-10-26). GP data are USSPACECOM basic SSA data: blanket approval to redistribute and to publish analysis, with appropriate citation (see space-track row) | Yes | Feeds a layer | 3 |
| Cloudflare Radar | SATCOM | Starlink traffic anomalies; outage annotations | CC BY-NC 4.0 for data from Radar API endpoints (developers.cloudflare.com/radar, read 2026-10-30); credit Cloudflare Radar | No | Feeds a layer | 2 |
| FCC space station filings (Schedule S beam contours) | SATCOM | Beam gain contours for US-licensed satellites, filed with applications as GIMS/GXT files (47 CFR 25.114) | Public records filed with the FCC. The filings are the applicants' work, not US government works, and no reuse terms are stated; some filings give only representative beams | Unverified | Later phase | – |
| IODA (Georgia Tech) | SATCOM | National and AS-level outages incl. AS14593 | "All Rights Reserved" in responses | Ask | After permission | 2 |
| ITU space network filings (SNL; GIMS beam data) | SATCOM | Coordination and notification filings for satellite networks; beam diagrams in GIMS format | The Space Network List is free to consult online; beam data ships with ITU's paid BR IFIC publications under ITU terms | Unverified | Later phase | – |
| KingOfSat channel listings | SATCOM | GEO channel removals at watched slots | All rights reserved (site footer); no terms page; robots.txt disallows channelhistory.php, tp.php, find, detail | Ask | Private watch only | 2 |
| M-Lab NDT | SATCOM | Speed tests via BigQuery; 24 h lag | CC0 | Yes | Feeds a layer | 3 |
| Ookla open data | SATCOM | Speed tests | Non-commercial | No | Excluded | – |
| OONI | SATCOM | Censorship measurements | CC BY-NC-SA | No | Excluded | – |
| RIPE Atlas | SATCOM | 131 connected Starlink probes (6 Oct); none on other satcom ASNs | Commercial use needs RIPE NCC permission (terms 4.5) | Ask | After permission | 3 |
| SatBeams footprint maps and KML | SATCOM | Satellite coverage footprints (maps; KML files sold separately) | Proprietary. Site terms bar reproducing or commercially exploiting any part of the service and assert Satbeams' or its licensors' rights in published material (terms updated 6 Jul 2026); KML files are licensed for internal use within the licensee's company only, non-transferable, with a copyright statement on any product (KML terms, 2023). The disclaimers say footprints may be predicted or illustrative | No | Excluded | – |
| Satellite operators' coverage maps | SATCOM | Published beam coverage and EIRP contour maps for operators' own satellites (Intelsat, SES, Eutelsat and others) | Each operator's own site terms; no reuse licence found for the maps. Treated as copyrighted images | Unverified | Excluded | – |
| Space-Track | SATCOM | TLE/OMM (gp, gp_history), SATCAT, decay and reentry data | Basic SSA data (TLE/OMM, SATCAT, decay and reentry): USSPACECOM blanket approval to transfer and redistribute, conditioned on appropriate citation; publications of analysis also need citation. Anything else needs prior approval (User Agreement) via an Orbital Data Request | Yes | Feeds a layer | 3 |
The registry is registry/sources.csv in the repository, checked on every commit.