Off-Nadir Delta
The world's risks are scattered everywhere. See them on one map.
Detect important events, assess whether satellites can actually see them, and identify what imagery to examine next — combining open-source signals, satellite imagery, and AI-assisted analysis in one workflow. From breaking headline to satellite evidence in minutes, no GIS background required.
Built for OSINT, geopolitical-risk, and satellite-intelligence analysts — and anyone who needs to know where to look next.
Try a Live Intelligence Workflow
From a headline to satellite evidence — one connected path across the four surfaces. No GIS software or remote-sensing background required.
Pick an event on the Watchfloor
“What happened?”
Find active global signals from disasters, conflict, infrastructure, maritime activity, and environmental change — geolocated and ranked, refreshed continuously.
Start with WatchfloorAsk Delta Agent why it matters
“Why does it matter?”
Get a sourced, geolocated brief with context, possible impacts, and confidence — plus a recommendation for which satellite sensor and area to image next.
Ask Delta AgentLook closer on the Map
“What can satellites see?”
Open the recommended scene in the browser: Sentinel-1 SAR, Sentinel-2 optical, false color and index views, and change detection over the area of interest.
Open the MapReuse the insight
“Where does it go next?”
Read the Daily Report for the written assessment, pull the same signals into your own dashboards over the Event Intelligence API, or connect your AI agent via MCP.
Read the ReportBuilding instead of browsing? Run the same workflow programmatically —Event Intelligence API & MCP
Prioritize · understand · verify
Scattered signals in. Prioritized risk intelligence out.
News, open data, and satellite imagery each tell part of the story — and reading them takes expertise and time. Off-Nadir Delta does the triage for you: it explores, visualizes, and analyzes geographic events worldwide, and turns them into intelligence you can use for first response and situational awareness.
Watchfloor
Where to look now
Today's prioritized picture of global risk
Live geolocated events — disasters, conflict, security, infrastructure — ranked and continuously refreshed, with what changed since you last looked and your saved areas on one screen. The fastest way to know where to look.
Open the WatchfloorDelta Agent
Why it matters · what to image next
An AI analyst that explains the risk
Ask a question in plain language — no intelligence background needed. Delta Agent reasons over live events with real analytic tradecraft and returns a sourced, geolocated brief: what happened, why it matters, and which satellite sensor and area to image next — then reads the imagery for you.
Ask Delta AgentMap
Verify from space
See the event area for yourself — no GIS software
Verify what actually changed on the ground: Sentinel-1 SAR, Sentinel-2 optical, VIIRS nighttime lights and more, with change detection, vessel detection, and time-series monitoring directly on the map. No code, no API keys.
Explore the MapDaily Reports
The written assessment
A daily risk assessment you can share
A structured daily report on world events — Key Judgments with calibrated confidence, an outlook, and collection priorities, written to professional analytic standards. Browse the archive by date, or drill into a single country.
Read today's reportDelta Signals — continuously refreshed, AI-enriched geopolitical and security events distilled from news worldwide, each traceable to its original sources and an AI-corrected, source-linked location — feed the Watchfloor, the Agent, and the daily report. Every finding opens on the Map for a closer look, so you move from headline to satellite evidence without switching tools — whether you're an OSINT or geopolitical-risk analyst, a developer, or working in emergency management, media, or research.
Developers & AI agents
Query the same intelligence over API & MCP
Pull geolocated signals, the daily world brief, satellite scene search, and AI analysis into your own stack over a REST API — or connect an MCP server so your AI agent has live situational awareness instead of a stale training snapshot. Bearer-key auth, token-metered, cursor-paginated. No scraping.
Connect an MCP client in one command
— Claude Code, Claude Desktop, Cursor, VS Code, or any MCP clientclaude mcp add --transport http off-nadir-delta \
https://offnadir-delta.com/api/v1/mcp \
--header "Authorization: Bearer ond_..."A real result — live from the Watchfloor
From a headline to a collection plan
Not a mock-up. This is an actual signal our pipeline surfaced, geolocated, and analyzed — the imagery it recommends examining next, and an honest verdict on whether open satellite data can confirm it. Refreshed hourly.
Fire in Oxy building in Brussels
Oxy building, De Brouckere Square, Brussels· July 15, 2026
Multiple people have died and six are missing after a fire in the Oxy building on De Brouckere Square, Brussels, Belgium.
Recommended collection
Sensor
VHR optical
sub-metre commercial optical
Resolution
GSD <1m
NIIRS 5
Look for
Burned building ~10m
Can open data confirm it?
Open data can screen it — confirming detail needs commercial tasking
Commercial VHR / small-SAR (object below free-sensor resolution)
The physical mark is below the 10-20 m free-sensor floor — task commercial collection; do not claim free-sensor confirmation.
Auto-generated from open news sources and public satellite catalogs. Locations are AI-extracted and geo-checked; recommendations are decision support, not a tasking order.
Pricing
Start free — no credit card required. Usage is metered in tokens, so you pay only for the imagery and analysis you actually run. For teams, one shared token pool covers everyone on a single bill.
Free Tools & Guides
Live tools for checking an area yourself, right in your browser — no account needed — plus step-by-step guides for going deeper
Live Fire Map
WildfireLive tool — no loginInteractive NASA FIRMS map — view wildfire hotspots right on the page, dates back to 2000
Open toolFree GeoTIFF Viewer
DataLive tool — no loginDrop a .tif and view it instantly — parsed 100% in your browser, never uploaded
Open toolNDVI Vegetation Map
AgricultureLive tool — no loginBrowse live global NDVI on the page, then calculate 10m Sentinel-2 NDVI for your fields
Open toolSatellite Area Monitoring
MonitoringDraw any area and track how it changes over time — no GIS, no code
Read guideChange Detection
AnalysisCompare satellite images before and after any event
Read guideSAR Flood Mapping
DisasterLearn to detect and map floods using radar imagery
Read guideSAR Ship Detection
MaritimeIdentify vessels in SAR imagery for maritime monitoring
Read guideNighttime Lights
UrbanVIIRS Black Marble imagery for urban growth and power-outage analysis
Read guideFrom the Blog
How to read geographic risk from satellite data — practical guides to SAR, spectral indices, change detection, and monitoring
Getting Started with Sentinel-1 SAR Imagery: A Beginner's Guide
Learn how to access and analyze Sentinel-1 SAR radar data in your browser. This step-by-step guide covers the basics of SAR imagery, how to search for data, and interpret your first radar image.
Mapping Floods with SAR: A Practical Workflow from Search to Analysis
Step-by-step guide to delineating flood extent using Sentinel-1 SAR data. Covers pre-event baseline selection, backscatter thresholding, and common interpretation mistakes to avoid.
Understanding NDVI: How to Monitor Vegetation Health from Space
A comprehensive guide to NDVI (Normalized Difference Vegetation Index) — what it measures, how to interpret values, and practical applications for agriculture, forestry, and environmental monitoring.
Change Detection from Space: Three Approaches That Actually Work
Not all change detection methods are equal. This post compares image differencing, NDVI time-series, and SAR coherence-based approaches with real-world guidance on when to use each one.
Beyond True Color: Sentinel-2 Band Combinations Worth Knowing
Sentinel-2 has 13 spectral bands, but most people only use RGB. This post covers the most practical band combinations for agriculture, water, urban mapping, and geology — and explains why each one works.
How to Monitor Any Area with Satellite Time Series: A Complete Guide
Area monitoring with satellite time series lets you automatically track changes in any region over weeks, months, or years. Learn how to set up a monitoring zone, choose the right index, and interpret results using Sentinel-1, Sentinel-2, and VIIRS data.
Frequently Asked Questions
Quick answers about Delta Agent, the API & MCP server, the Watchfloor, the Map, Daily Reports, and Off-Nadir Delta.
Off-Nadir Delta is a geographic risk intelligence platform. Disasters, conflict, environmental change, and infrastructure failures unfold worldwide every day, but the signals are scattered across news, open data, and satellite imagery — and reading them takes expertise and time. Off-Nadir Delta combines an AI analyst, maps, satellite data, and open sources to explore, visualize, and prioritize geographic events, turning them into intelligence you can use for first response and situational awareness. It has four product surfaces: the Watchfloor (today's prioritized picture of global risk — where to look now), Delta Agent (an AI analyst that explains what happened and why it matters, and recommends which satellite sensor and area to image next), the Map (verify events from space with Sentinel-1 SAR, Sentinel-2 optical, VIIRS nighttime lights, and NASA FIRMS active fires — no GIS software required), and Daily Reports (a written daily assessment with Key Judgments, calibrated confidence, and an outlook). Built for OSINT, geopolitical-risk, and satellite-intelligence analysts, and for developers integrating signals and briefs via API and MCP — with emergency management, media, enterprises, and researchers using it too. No intelligence background required. Free tier available.
Start Reading the World Today
Jump back in — your Watchfloor, Delta Agent, the Map, and today's report are one click away.