# Ephemeris Snapshots - Condition Coverage Map

> Ephemeris Snapshots - Condition Coverage Map is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.035246/call, status unknown (last checked 2026-10-16).

Audits a bounded set of requested epoch ticks against supplied ephemeris export rows to produce a condition coverage map, flagging which ticks are covered or missing.

## Facts

- Endpoint: POST https://www.mahastrategies.com/api/v1/celestial/ephemeris-snapshots/condition-coverage-map?utm_source=zero.xyz
- Price: $0.035246/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ephemeris-snapshots-condition-coverage-map-78fbb503
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AP9bJufbgxfswtM523BeL

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability ephemeris-snapshots-condition-coverage-map-78fbb503 -d '<json body>'
```

Example prompt: Can you audit my ephemeris export rows for dataset 'sol-2024-v3' against 32 requested epoch ticks using the J2000 coordinate frame, TDB time scale, and public data class to generate a condition coverage map showing which ticks are covered?

## When to prefer this

Use this endpoint when you need to audit a bounded set of ephemeris epoch ticks against caller-supplied export rows to determine coverage completeness. Prefer this over generic data validation endpoints when working specifically with celestial ephemeris snapshots with coordinate frames, time scales, and kernel references. Not suitable for independent data certification or raw planetary data retrieval.

## Known failure modes

- requestedEpochTicks array is empty or exceeds 32 items — returns validation error
- rows array exceeds 32 items — rejected with schema error
- nonpersonalMetadata not set to true — request rejected
- invalid or unrecognized coordinateFrameRef, timeScaleRef, or dataClass enum value — returns error
- mismatched datasetRef or snapshotRevision causing no row matches — returns empty or all-missing coverage map
- malformed kernelDigest string — may cause lookup failure

## How this service works

Audit a bounded requested epoch grid against supplied export-row Supplied-record analysis, not independent certification. Full contract at the free describe URL.

## Output

Returns a condition coverage map indicating which of the requested epoch ticks are covered by the supplied export rows, and which are absent or uncovered, based on the provided dataset, coordinate frame, time scale, and revision parameters. Does not independently certify data — performs analysis against the caller-supplied records only.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "maxItems": 32,
   "minItems": 0
  },
  "centreRef": {
   "type": "string"
  },
  "dataClass": {
   "enum": [
    "public",
    "synthetic"
   ],
   "type": "string"
  },
  "targetRef": {
   "type": "string"
  },
  "datasetRef": {
   "type": "string"
  },
  "tickUnitRef": {
   "type": "string"
  },
  "kernelDigest": {
   "type": "string"
  },
  "timeScaleRef": {
   "type": "string"
  },
  "correctionRef": {
   "type": "string"
  },
  "epochOriginRef": {
   "type": "string"
  },
  "snapshotRevision": {
   "type": "string"
  },
  "coordinateFrameRef": {
   "type": "string"
  },
  "nonpersonalMetadata": {
   "type": "boolean",
   "const": true
  },
  "requestedEpochTicks": {
   "type": "array",
   "maxItems": 32,
   "minItems": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ephemeris-snapshots-condition-coverage-map-78fbb503/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.mahastrategies.com](https://www.zero.xyz/host/www.mahastrategies.com/llms.txt)