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Recover Starlink partial satellite positions during source outages - #71
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ChevCellios
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October 8, 2026 14:09
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When CelesTrak returns HTTP 500, the production operational-only cache omits positions for partial satellites. Disabling the operational layer consequently clears the globe despite a nonzero partial catalog count.
Recover an older cache from a bundled, validated public snapshot containing 10,812 operational and 293 partial orbital records. Retain the original 2026-10-08T12:29:06Z retrieval time, validate the same schema as upstream data, bound gzip expansion, persist recovery to the normal volume, never overwrite newer cache, and ignore bootstrap data older than seven days. Successful upstream refreshes remain authoritative with the existing two-hour cooldown. Snapshot provenance and SHA-256 are documented alongside the data; no satellite positions are invented.
Each layer now reports its actual propagated-position count. Empty layers are disabled with an explanation; hiding all available layers displays a clear message. Catalog metrics stay unchanged.
Validation: 85 .NET tests and 19 Node tests passed, including outage recovery/persistence, newer-cache preservation, expired fallback rejection, and layer counts/availability. Docker build passed. Local browser verified that disabling operational satellites retains partial satellites, empty-state wording is visible, and no console errors occur. Production upstream failure was confirmed in logs as HTTP 500 for both CelesTrak downloads.