> ## Documentation Index > Fetch the complete documentation index at: https://www.worldmonitor.app/docs/llms.txt > Use this file to discover all available pages before exploring further. # ListImagingSatellites > ListImagingSatellites returns the published sensor-profile inventory, current orbit elements for every profiled imaging satellite, and a daily ring of prior elements for computing past passes. ## OpenAPI ````yaml /api/worldmonitor.openapi.yaml get /api/orbital/v1/list-imaging-satellites openapi: 3.1.0 info: title: WorldMonitor API description: >- Unified OpenAPI bundle spanning all WorldMonitor services. Versioning and deprecation policy: https://www.worldmonitor.app/api-versioning.md (HTML: https://www.worldmonitor.app/docs/api-versioning) contact: name: WorldMonitor email: support@worldmonitor.app version: 1.0.0 servers: - url: https://api.worldmonitor.app security: - WorldMonitorKey: [] - ApiKeyHeader: [] paths: /api/orbital/v1/list-imaging-satellites: get: tags: - OrbitalService summary: ListImagingSatellites description: >- ListImagingSatellites returns the published sensor-profile inventory, current orbit elements for every profiled imaging satellite, and a daily ring of prior elements for computing past passes. operationId: ListImagingSatellites parameters: - name: jmespath in: query description: >- Optional JMESPath expression applied server-side to project or reduce the JSON response before it is returned (mirrors the MCP jmespath argument). Invalid expressions, expressions larger than 1024 UTF-8 bytes, or projections that exceed the 256 KB output cap return HTTP 400 with a {_jmespath_error, original_keys} envelope. Grammar and worked examples: https://www.worldmonitor.app/docs/mcp-jmespath. required: false example: keys(@) schema: type: string responses: '200': description: Successful response content: application/json: example: fetchedAt: 1717200000000 inventoryVersion: example profiles: - category: cs.AI coverage: example family: example id: example-id operator: example ring: - day: '2026-01-15' elements: - argOfPericenter: 1.5 bstar: 1.5 classificationType: all eccentricity: 1.5 elementSetNo: 1 fetchedAt: 1717200000000 satellites: - elements: argOfPericenter: 1.5 bstar: 1.5 classificationType: all eccentricity: 1.5 elementSetNo: 1 name: WorldMonitor Analyst noradId: 1 profileId: example-id schema: $ref: >- #/components/schemas/worldmonitor_orbital_v1_ListImagingSatellitesResponse '400': description: Validation error content: application/json: schema: oneOf: - $ref: '#/components/schemas/ValidationError' - $ref: '#/components/schemas/JmespathProjectionError' '401': description: Missing or invalid API key. content: application/json: schema: $ref: '#/components/schemas/UnauthorizedError' '403': description: >- API access requires an active subscription (the API key's subscription is inactive or expired). headers: X-Billing-Verification: description: >- Present when the 403 is a billing-provider-confirmed subscription lapse (value subscription_lapsed, matching the body `code`). schema: type: string content: application/json: schema: $ref: '#/components/schemas/ForbiddenError' '429': description: Rate limit exceeded. headers: X-RateLimit-Limit: description: Maximum requests allowed in the active rate-limit window. schema: type: string X-RateLimit-Remaining: description: Requests remaining in the active rate-limit window. schema: type: string X-RateLimit-Reset: description: >- Unix epoch milliseconds when the active rate-limit window resets. schema: type: string Retry-After: description: Seconds to wait before retrying the request. schema: type: string content: application/json: schema: oneOf: - $ref: '#/components/schemas/Error' - $ref: '#/components/schemas/RateLimitError' '503': description: >- Service unavailable. Billing-verification responses include code and X-Billing-Verification; other gateway infrastructure failures use the generic GatewayError shape. headers: Retry-After: description: Seconds to wait before retrying (1-60). schema: type: string X-Billing-Verification: description: >- Billing-verification state that produced this response (matches the body `code`). schema: type: string X-Validation-Mode: description: >- Present with value degraded when user API-key validation is temporarily unavailable. schema: type: string X-RateLimit-Mode: description: >- Present with value degraded when a fail-closed rate-limit dependency is unavailable. schema: type: string content: application/json: schema: oneOf: - $ref: '#/components/schemas/BillingVerificationError' - $ref: '#/components/schemas/GatewayError' default: description: Gateway or handler error response. content: application/json: schema: oneOf: - $ref: '#/components/schemas/Error' - $ref: '#/components/schemas/GatewayError' components: schemas: worldmonitor_orbital_v1_ListImagingSatellitesResponse: type: object properties: inventoryVersion: type: string description: Version of the sensor-profile inventory below. profiles: type: array items: $ref: '#/components/schemas/worldmonitor_orbital_v1_SensorProfile' satellites: type: array items: $ref: '#/components/schemas/worldmonitor_orbital_v1_ImagingSatellite' ring: type: array items: $ref: '#/components/schemas/worldmonitor_orbital_v1_CatalogDay' fetchedAt: type: integer format: int64 description: >- When the current elements were fetched, as Unix epoch milliseconds; 0 with no catalog.. Warning: Values > 2^53 may lose precision in JavaScript source: type: string description: Where the elements come from. stale: type: boolean description: >- True when no catalog is stored or the stored one is older than its freshness limit. description: >- ListImagingSatellitesResponse is the imaging catalog. With no catalog stored, the lists are empty and stale is true. ValidationError: type: object properties: violations: type: array items: $ref: '#/components/schemas/FieldViolation' description: List of validation violations required: - violations description: >- ValidationError is returned when request validation fails. It contains a list of field violations describing what went wrong. JmespathProjectionError: description: >- Returned when a REST jmespath projection is invalid or exceeds the expression/output byte limits. properties: _jmespath_error: description: Projection error discriminator and details. type: string original_keys: description: Top-level keys or shape of the unprojected response. items: type: string type: array required: - _jmespath_error - original_keys type: object UnauthorizedError: type: object properties: error: type: string description: Human-readable error message. required: - error description: >- Returned when the API key is missing, malformed, or lacks current API access. ForbiddenError: type: object properties: error: type: string description: Human-readable entitlement failure reason. code: type: string enum: - subscription_lapsed description: >- Machine-readable denial code, present when the 403 is a billing-provider-confirmed subscription lapse (mirrored in the X-Billing-Verification response header). requiredTier: type: integer format: int32 description: Minimum entitlement tier required for this endpoint. currentTier: type: integer format: int32 description: Caller entitlement tier when known. planKey: type: string description: Caller plan key when known. required: - error description: >- Returned when a PRO-gated endpoint denies access because the caller has no resolved authenticated user, entitlements cannot be verified, or the caller lacks the required entitlement tier. Error: type: object properties: message: type: string description: Error message (e.g., 'user not found', 'database connection failed') description: >- Error is returned when a handler encounters an error. It contains a simple error message that the developer can customize. RateLimitError: type: object description: Returned when a gateway or handler rate limit rejects the request. properties: error: type: string description: Human-readable rate-limit failure reason. required: - error BillingVerificationError: type: object description: >- Returned with HTTP 503 when paid access cannot be confirmed right now: the billing provider is re-verifying a recently expired subscription, or the entitlement backend is unreachable. Retryable — honor Retry-After. properties: error: type: string description: Human-readable billing-verification failure reason. code: type: string enum: - renewal_verification_pending - renewal_verification_failed - entitlement_verification_unavailable description: >- Machine-readable billing-verification state, mirrored in the X-Billing-Verification response header. requiredTier: type: integer format: int32 description: >- Minimum entitlement tier required for this endpoint, when the denial came from a tier gate. required: - error - code GatewayError: type: object description: >- Returned by gateway infrastructure errors before an RPC handler runs, such as origin, routing, method, authentication, or quota checks. properties: error: oneOf: - type: string - type: object additionalProperties: true description: Gateway error reason or structured gateway failure details. required: - error worldmonitor_orbital_v1_SensorProfile: type: object properties: id: type: string description: Stable profile id, e.g. "sentinel-2". family: type: string description: Family name, e.g. "Sentinel-2". operator: type: string category: type: string description: >- One of open-optical, open-radar, weather-polar, commercial-optical, commercial-radar, military, crewed-station, geostationary. coverage: type: string description: 'Where the mission acquires: "land-coast" or "global".' sources: type: array items: type: string description: Operator documentation the row is taken from. description: >- SensorProfile is one row of the published inventory of imaging-satellite families. worldmonitor_orbital_v1_ImagingSatellite: type: object properties: noradId: type: integer format: int32 name: type: string profileId: type: string description: Id of the SensorProfile the satellite belongs to. elements: $ref: '#/components/schemas/worldmonitor_orbital_v1_OmmElements' description: ImagingSatellite is a profiled satellite with its newest orbit elements. worldmonitor_orbital_v1_CatalogDay: type: object properties: day: type: string description: UTC day, YYYY-MM-DD. fetchedAt: type: integer format: int64 description: >- When that day's elements were fetched, as Unix epoch milliseconds.. Warning: Values > 2^53 may lose precision in JavaScript elements: type: array items: $ref: '#/components/schemas/worldmonitor_orbital_v1_OmmElements' description: >- CatalogDay holds the elements fetched on one UTC day; past passes use the day nearest each pass. FieldViolation: type: object properties: field: type: string description: >- The field path that failed validation (e.g., 'user.email' for nested fields). For header validation, this will be the header name (e.g., 'X-API-Key') description: type: string description: >- Human-readable description of the validation violation (e.g., 'must be a valid email address', 'required field missing') required: - field - description description: FieldViolation describes a single validation error for a specific field. worldmonitor_orbital_v1_OmmElements: type: object properties: objectName: type: string description: Satellite name as published, e.g. "SENTINEL-2A". objectId: type: string description: International designator, e.g. "2015-028A". epoch: type: string description: Element epoch, ISO 8601 UTC as published (no zone suffix means UTC). meanMotion: type: number format: double description: Revolutions per day. eccentricity: type: number format: double inclination: type: number format: double description: Degrees. raOfAscNode: type: number format: double description: Right ascension of the ascending node, degrees. argOfPericenter: type: number format: double description: Argument of pericenter, degrees. meanAnomaly: type: number format: double description: Mean anomaly, degrees. ephemerisType: type: integer format: int32 classificationType: type: string description: '"U" for unclassified.' noradCatId: type: integer format: int32 description: NORAD catalogue number. elementSetNo: type: integer format: int32 revAtEpoch: type: integer format: int32 bstar: type: number format: double description: Drag term, inverse Earth radii. meanMotionDot: type: number format: double description: Revolutions per day squared. meanMotionDdot: type: number format: double description: Revolutions per day cubed. description: >- OmmElements is one set of published OMM mean elements, in CelesTrak's GP fields. securitySchemes: WorldMonitorKey: type: apiKey in: header name: X-WorldMonitor-Key description: User-issued WorldMonitor API key. ApiKeyHeader: type: apiKey in: header name: X-Api-Key description: Alias header for the WorldMonitor API key (X-WorldMonitor-Key). ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.