Defense & Security · Open Source

Defense Satellite Intelligence From Open Sources

Unclassified, open-source GEOINT for the defense and security community: track conflicts and crises, verify open-source claims with Sentinel imagery, and get sourced, caveated AI briefs — for situational awareness and verification, not targeting.

Quick Answer: Open-source defense intelligence builds security-relevant assessments from publicly available sources — open reporting plus commercial and free satellite imagery — for situational awareness and verification, not classified collection or targeting. Off-Nadir Delta supports that workflow: a global open-source event feed, Sentinel SAR and optical imagery you can pull over any event, and an AI analyst that returns sourced, confidence-caveated briefs. Open sources only; no surveillance of individuals.

The scope, stated plainly

What this is for

  • Situational awareness of conflicts and crises from open sources
  • Verifying and corroborating open-source claims with imagery
  • Monitoring areas of interest over time
  • Sourced, confidence-caveated analytic briefs

What it is not

  • Not a classified system — open sources only
  • Not an operational targeting tool
  • Not for the surveillance of individuals
  • Not a claim to resolve what the imagery cannot

Open-Source Feed

A continuously refreshed global event feed, geolocated and severity-ranked — the open-source tip.

SAR & Optical

Cue Sentinel-1 radar through cloud and darkness, or Sentinel-2 optical for visual confirmation.

Caveated Briefs

An AI analyst that states what imagery can and cannot show, with confidence calibrated, not asserted.

Verifiable

Every finding is sourced and located, so assessments can be shown, shared, and independently checked.

Within Resolution

Detect-versus-identify is respected — no claiming to read at ~10 m what only sub-metre imagery can resolve.

No GIS Stack

Runs in the browser. Browse the picture free; no install and no code to get started.

How It Works

1

Watch the open-source picture

Start with a continuously refreshed feed of geolocated geopolitical and security events worldwide, ranked by severity — the open-source tip that something has happened.

2

Cue the imagery

Pull Sentinel-1 SAR or Sentinel-2 optical over a located event. Radar sees through cloud and at night; optical confirms visually — choose the sensor the question needs.

3

Get a sourced, caveated brief

Ask the AI analyst why an event matters and what the imagery can and cannot show, with confidence calibrated to a single pass, geometry, or resolution — not asserted.

4

Monitor the area

Save the area and track it over time so force posture, construction, or activity changes surface as anomalies rather than something you must catch by eye.

Frequently Asked Questions

What is open-source defense intelligence?
It is intelligence about security-relevant situations built entirely from publicly available sources — news and social reporting, commercial and free satellite imagery, vessel and aircraft tracking — rather than classified collection. Its defining strength is that findings can be shown, shared, and independently checked, which is why open-source methods are now central to conflict monitoring, crisis response, and accountability work.
Can commercial satellite imagery support defense analysis?
Yes, for situational awareness and verification. Free imagery such as Sentinel-1 SAR and Sentinel-2 optical can detect structures, vehicles, ships, flooding, and burn scars and measure change over time. What free ~10 m imagery cannot do is identify specific vehicle types or read markings — that needs sub-metre commercial imagery. Respecting that resolution ceiling is the difference between a careful assessment and an over-read.
Is this classified intelligence or a targeting tool?
No. Off-Nadir Delta uses only publicly available open sources and is intended for situational awareness, monitoring, and the verification of open-source claims. It is not a classified system and is not designed for operational targeting or the surveillance of individuals. The platform describes what open imagery and open reporting can support — and states plainly where confidence is capped.
Who in the defense and security community uses this?
Defense and security analysts tracking conflicts and crises, NGOs and humanitarian teams monitoring displacement and infrastructure, journalists and researchers verifying claims, and risk teams assessing exposure. The common need is to understand a developing situation from open sources, quickly, and to back assertions with imagery.
How does the AI analyst handle uncertainty?
It separates how likely a judgment is from how confident it is, and lowers confidence when a finding rests on a single satellite pass, oblique radar geometry, degraded resolution, or a long inferential chain. A brief will flag a caveat such as "single post-event pass, no baseline" rather than assert certainty — analytic honesty over a confident-sounding answer.
Is it free to start?
Yes — browsing the open-source event picture is free and needs no account. Imagery rendering, AI deep-dives, and area monitoring use token-based pricing with a free tier. See the pricing page for current details.

Open-Source Situational Awareness, Backed by Imagery

Track conflicts and crises from open sources, verify them with Sentinel imagery, and get sourced AI briefs. Free to browse.