Observation Instance – Django REST framework

Get a list of Observation objects.

### Available end points:

- `/observations/` - Will list all Results in the database
- `/observations.json` - Will return all Results in json format. This can
also be achieved by using the accept header. `application/json`
- `/observations/<object_id>/` - Returns Results object with that id

### Available Methods:

- `GET`
- `HEAD`

### Available filters:

- `title`
- `uuid`
- `keywords`
- `status`
- `result_field`
- `discoveryKeywords`
- `updateFrequency`
- `nonGeographicFlag`
- `publicationState`
- `permissions`

### How to use filters:

These filters can be used like django query filters using __ for related model relationships.

- `/observations/?uuid=d594d53df2612bbd89c2e0e770b5c1a0`
- `/observations/?status=completed`
- `/observations/?results_field__dataPath__startswith=/neodc/esacci`
- `/observations/?discoveryKeywords__name=ESACCI`
- `/observations/?nonGeographicFlag=True`

Filters can be stacked to build an 'AND' relationship. E.g.

- `/observations/?publicationState__in=published,citable&nonGeographicFlag=True`
- `/observations/?publicationState__in=published,citable&discoveryKeyword__name=NDGO0003`

GET /api/v2/observations/45703/?format=api

HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 45703,
    "uuid": "861c6ef3b7fd4cee9e3268f4b8722567",
    "title": "NERC-ARF flight 2017_167a for ES17_136: Airborne remote sensing measurements",
    "abstract": "Airborne remote sensing measurements collected on 16 June 2017 by the Natural Environment Research Council's Airborne Research Facility (NERC-ARF) onboard the British Antarctic Survey (BAS) Twin-Otter aircraft for the NERC-ARF ES17_136 Project (flight reference: 2017_167a). This dataset comprises: digital photography data collected using a Leica RCD105 camera, hyperspectral data collected using a Specim Aisa FENIX imager and hyperspectral data collected using a Specim Aisa OWL imager.\r\n\r\nData were collected over the Albacete, Spain area.",
    "keywords": "ES17_136, ES17/136, aircraft, hyperspectral, remote sensing, NERC-ARF, ARSF",
    "publicationState": "published",
    "dataPublishedTime": "2026-03-31T15:21:31",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://catalogue.ceda.ac.uk/api/v2/observations/45704/?format=api",
        "dataPath": "/neodc/arsf/2017/ES17_136/ES17_136-2017_167a_Albacete",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 1180148973156,
        "numberOfFiles": 3001,
        "fileFormat": "Hyperspectral data are ENVI binary, LiDAR data are LAS and aerial photography are TIF formats"
    },
    "timePeriod": "https://catalogue.ceda.ac.uk/api/v2/times/13077/?format=api",
    "geographicExtent": "https://catalogue.ceda.ac.uk/api/v2/bboxes/5122/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [],
    "dataLineage": "Data were collected and processed by the NERC-ARF facility and deposited at the Centre for Environmental Data Analysis (CEDA) for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://catalogue.ceda.ac.uk/api/v2/projects/26106/?format=api"
    ],
    "observationcollection_set": [
        "https://catalogue.ceda.ac.uk/api/v2/observationcollections/45715/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://catalogue.ceda.ac.uk/api/v2/rpis/218417/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/218418/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/218419/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/218420/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/218421/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/218422/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/218423/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/218424/?format=api"
    ],
    "procedureAcquisition": "https://catalogue.ceda.ac.uk/api/v2/acquisitions/45705/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://catalogue.ceda.ac.uk/api/v2/observations/2522/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "registered",
            "accessRoles": null,
            "label": "registered: None group",
            "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": []
}