---
title: "GET /udl/h3geohexcell"
method: GET
path: "/udl/h3geohexcell"
tags: ["Report and Activity"]
---

# GET /udl/h3geohexcell

`GET /udl/h3geohexcell`

## Request

- Base URL: `https://unifieddatalibrary.com`
- URL: `https://unifieddatalibrary.com/udl/h3geohexcell`
- 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

- `idH3Geo` string, required
- `firstResult` integer
- `maxResults` integer

## Response `200`

OK

- H3GeoHexCellAbridged[]
  - `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.
  - `cellId` string, required: The H3 index represented as a 16 character hexadecimal string.
  - `idH3Geo` string: Unique identifier of the parent H3 Geo record containing this hex cell.
  - `coverage` integer: The total number of available observations in the H3 cell during the start/end times.
  - `anomScoreInterference` number, double: The anomaly score for probable manufactured interference or RF interference; calculated as a ratio of #anomalous obs / #total obs or coverage.
  - `anomScoreSpoofing` number, double: The anomaly score for probable spoofing; calculated as a ratio of #anomalous obs / #total obs or coverage.
  - `changeScore` number, double: The percentage degree of change in the aggregated observables for a particular H3 bin.
  - `rpmMedian` number, double: The median received power monitor (RPM) output value for the set of data contained within this cell.
  - `rpmMean` number, double: The mean received power monitor (RPM) output value for the set of data contained within this cell.
  - `rpmMax` number, double: The max received power monitor (RPM) output value for the set of data contained within this cell.
  - `rpmMin` number, double: The min received power monitor (RPM) output value for the set of data contained within this cell.
  - `rpmSigma` number, double: The standard deviation of the received power monitor (RPM) output value for the set of data contained within this cell.
  - `altMean` number, double: The mean altitude of the set of observations within this cell, measured in kilometers.
  - `altSigma` number, double: The standard deviation of alttitude in the set of observations within this cell, measured in kilometers.
  - `createdAt` string, date-time: Time the row was created in the database, auto-populated by the system.
  - `createdBy` string: Application user who created the row in the database, auto-populated by the system.
  - `sourceDL` string: The source data library from which this record was received. This could be a remote or tactical UDL or another data library. If null, the record should be assumed to have originated from the primary Enterprise UDL.
  - `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.
  - `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.

## 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`: 3 info
  - api operation id `findAllWithStream_11` removed and replaced with ``
  - the endpoint scheme security `BasicAuth` was removed from the API
  - added the optional property `items/changeScore` to the response with the `200` status

[Operation history](https://skmtc.dev/bluestaq/apis/unified-data-library-services-api/changes/udl/h3geohexcell/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)