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Maritime intelligence, explained
Reports, technical guides, regulatory insights, and analysis from the team behind Theia, covering dark fleets, spoofing, sanctions, and what satellites reveal.
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SAR vs Optical (EO) Imagery for Vessel Detection
SAR and optical imagery detect vessels in different conditions. Learn how radar and electro-optical imaging compare, and why they work…
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AIS vs Satellite Tracking
AIS and satellite tracking are often framed as rivals. Learn how the self-reported baseline and direct observation actually work together,…
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How to Build a Vessel Risk Profile
A vessel risk profile consolidates identity, history, and behavior into one assessment. Learn the inputs, the workflow, and how to…
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How to Monitor Maritime Chokepoints
Maritime chokepoints concentrate global shipping into narrow passages. Learn how to monitor them, establish a traffic baseline, and flag anomalies…
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How to Verify Vessel Identity with Satellite Imagery
Verifying vessel identity means matching an observed hull to a named ship. Learn how imagery, physical measurement, and records resolve…
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How to Identify and Investigate AIS Gaps
An AIS gap is a period when a vessel stops transmitting. Learn how to identify gaps, separate benign coverage loss…
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How to Detect Ship-to-Ship Transfers
Ship-to-ship transfers move cargo between vessels at sea, sometimes to obscure its origin. Learn the observable signature and the workflow…
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How to Detect Dark Ships
A dark ship has stopped transmitting AIS. Learn how to find dark vessels using the AIS baseline and imagery, and…
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How Satellite Vessel Detection Works
Satellite vessel detection enriches the AIS baseline with imagery of the water. Learn how the workflow turns observation into verified,…
Featured & Latest
Latest from the team.
Regulatory Insight
Sanctions Evasion at Sea
How dark fleets and ship-to-ship transfers move sanctioned crude past enforcement.
Technical Guide
How Satellite Vessel Detection Works
SAR, optical imagery, and where AIS-only tracking falls short.
Analysis
Tracking Naval Activity with OSINT
Satellite ground truth as the foundation for open-source analysis.
Content Feed
Priority reading.
How to Track Vessels Without AIS
Technical Guide
What Is Maritime Domain Awareness
Explainer
What Is AIS Spoofing
Explainer
AIS vs Satellite Tracking
Analysis
How Satellite Vessel Detection Works
Technical Guide
How to Detect Dark Ships
Technical Guide
Understanding Deceptive Shipping Practices
Regulatory Insight
How to Detect Ship-to-Ship Transfers
Technical Guide
Maritime Domain Awareness Explained
Explainer
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