---
title: "GET /udl/launchdetection"
method: GET
path: "/udl/launchdetection"
tags: ["Launch"]
---

# GET /udl/launchdetection

`GET /udl/launchdetection`

## Request

- Base URL: `https://unifieddatalibrary.com`
- URL: `https://unifieddatalibrary.com/udl/launchdetection`
- Auth: none declared

Service operation to dynamically query data by a variety of query parameters not specified in this API documentation. See the queryhelp operation (`/udl/<datatype>/queryhelp`) for more details on valid/required query parameter information.

## Query parameters

- `firstResult` integer
- `maxResults` integer

## Response `200`

OK

- LaunchDetectionAbridged[]
  - `id` string: Unique identifier of the record, auto-generated by the system.
  - `classificationMarking` string, required: Classification marking of the data in IC/CAPCO Portion-marked format.
  - `launchTime` string, date-time: Time of Launch.
  - `messageType` string, required: Type of message for the data.
  - `launchLatitude` number, double: Geodetic Latitude of launch origin (in Degrees). -90 to 90 degrees (negative values south of equator).
  - `launchLongitude` number, double: Geodetic Longitude of launch origin (in Degrees). -180 to 180 degrees (negative values west of Prime Meridian).
  - `launchAzimuth` number, double: Angle measured clockwise from North for the launch heading (in Degrees).
  - `raan` number, double: Orbit Right Ascension of Ascending Node (in Degrees).
  - `inclination` number, double: Orbit Inclination (in Degrees).
  - `observationTime` string, date-time, required: Time of observation.
  - `observationLatitude` number, double, required: Latitude of launch vehicle at observation time (in Degrees). -90 to 90 degrees (negative values south of equator).
  - `observationLongitude` number, double, required: Longitude of launch vehicle at observation time (in Degrees).
  - `observationAltitude` number, double: Altitude of launch vehicle at observation time (in KM).
  - `stereoFlag` boolean: Flag indicating multiple observers were used.
  - `highZenithAzimuth` boolean: Flag indicating that the Launch azimuth is uncertain due to near vertical flight path.
  - `sequenceNumber` integer, required: Integer indicating how messages should be sequenced for a specific event.
  - `eventId` string: Id to be able to correlate different messages to a specific event.
  - `source` string, required: Source of the data.
  - `origin` string: Originating system or organization which produced the data, if different from the source. The origin may be different than the source if the source was a mediating system which forwarded the data on behalf of the origin system. If null, the source may be assumed to be the origin.
  - `descriptor` string: Optional source-provided and searchable metadata or descriptor of the data.
  - `origNetwork` string: The originating source network on which this record was created, auto-populated by the system.
  - `dataMode` 'REAL' | 'TEST' | 'SIMULATED' | 'EXERCISE', required: Indicator of whether the data is REAL, TEST, EXERCISE, or SIMULATED data: REAL: Data collected or produced that pertains to real-world objects, events, and analysis. TEST: Specific datasets used to evaluate compliance with specifications and requirements, and for validating technical, functional, and performance characteristics. EXERCISE: Data pertaining to a government or military exercise. The data may include both real and simulated data. SIMULATED: Synthetic data generated by a model to mimic real-world datasets.
  - `createdAt` string, date-time: Time the row was created in the database.
  - `createdBy` string: Application user who created the row in the database.
  - `updatedAt` string, date-time: Read-only time the row was updated in the database, set automatically by the system on update.
  - `updatedBy` string: Application user who last updated the row in the database, set by the system automatically and ignored on create/edit operations.

## Other responses

- `400`: Bad Request
- `401`: Invalid/Missing User Credentials
- `403`: User Is Not Authorized
- `405`: Method Not Allowed
- `406`: MediaType Not Accepted by Request Headers
- `429`: Rate of Requests Exceeds Allowed Limit
- `500`: Internal Server Error

## Changes

> 12 revisions in range; 1 could not be searched.

- **2025-05-29** `4e1cbc17e814`: 2 info
  - added the new optional `query` request parameter `firstResult`
  - added the new optional `query` request parameter `maxResults`
- **2025-04-16** `75f764c843a9`: 2 info
  - api operation id `findAll_53` removed and replaced with ``
  - the endpoint scheme security `BasicAuth` was removed from the API

[Operation history](https://skmtc.dev/bluestaq/apis/unified-data-library-services-api/changes/udl/launchdetection/get.md)

---

[API](https://skmtc.dev/bluestaq/apis/unified-data-library-services-api.md) - [All operations](https://skmtc.dev/bluestaq/apis/unified-data-library-services-api/llms.txt) - [OpenAPI document](https://skmtc.dev/bluestaq/apis/unified-data-library-services-api/revisions/bd17bc53681e?raw)