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TrackJet

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Carbon estimates for reporting

How the CO₂ numbers are computed, what they are good for, and their honest limits.

What the number is

For a tracked shipment, TrackJet estimates CO₂e from great-circle distance between resolved endpoints and a per-vertical emission factor (air, ocean, road/post). The result is labelled an estimate everywhere it appears — in the UI and in the API field names.

What it is good for

  • Order-level footprint indications for your customers.
  • Aggregated reporting ("our tracked shipments this quarter ≈ X tCO₂e") where directional accuracy is enough.
  • Comparing modes: the air-vs-ocean gap is far larger than any model error.

What it is NOT

  • Not a measured value: real routing, load factors and equipment are unknown to any tracker.
  • Not a substitute for a carrier's primary data when you need audit-grade Scope 3 numbers.
  • Never silently fabricated: a shipment whose endpoints cannot be resolved shows no estimate instead of a guess.

Method, openly

Distance is haversine (documented as great-circle, which understates real routed distance), factors are published per vertical, and the calculation runs entirely on TrackJet's own data — no third-party estimate API behind the curtain. Methodology questions: [contact us](/contact).