Sky Observations - Condition Coverage Map

Choose this endpoint when you need to compute the precise union of declared sky observation exposure intervals within a bounded time window and obtain a condition coverage map tied to specific astronomical reference frames, epochs, and clock systems. Prefer it over generic interval-union utilities when your use case involves celestial observation metadata (coordinate frames, epochs, observer configs) and you need coverage expressed in parts-per-million against a threshold. Not suitable for independent certification of observations — it analyzes supplied records only.

• More than 32 exposures submitted — API enforces maxItems:32
• windowStartMs or windowEndMs outside valid range 0–86400000
• Invalid or unresolvable clockRef, epochRef, coordinateFrameRef, or observerConfigDigest
• nonpersonalMetadata not set to true (required constant)
• dataClass value not in allowed enum ['public','synthetic']
• minimumCoveragePpm outside 0–1000000 range
• Payment failure or insufficient USDC balance for x402 protocol
• Malformed or missing required digest fields returning validation errors