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Maritime advisories
SOURCE BRIEF

GPS OPERATIONAL ADVISORY JDAY 289

GPS operational advisory

USCG NAVCEN · GPS advisories · 16 Oct 2026 · 02:05 UTC
SOURCE BRIEF
Research context & editorial review
Published
16 Oct 2026 · 02:05 UTC
Added to portal
16 Oct 2026 · 03:02 UTC
Source check
16 Oct 2026 · 03:01 UTC
Background context & review questions

Topic context · no individual analytical review

CONDITIONAL MARITIME CONTEXT

Navigation relevance

The affected GPS service or satellite and the validity window determine applicability to a planned operation. The bulletin parameters are the next information needed to assess navigation exposure.

Questions for further review

  • Affected service and validity window in the original NAVCEN bulletin.
Publication history · 1 captured version

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Evidence & references

  1. [1] USCG NAVCEN · GPS advisoriesSource account
Evidence scope & unresolved questions
  • Source material: headline only.

Headline reference; conditional topic context. Source record with conditional topic context; no individual analytical review.