GET

Observation Instance

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/43671/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 43671,
    "uuid": "4b31d47716604b9f84714fab39ce973c",
    "title": "EOCIS: Total Column CO Product, V1.0",
    "abstract": "This dataset contains the Total Column Carbon Monoxide (CO) data produced within the Earth Observation Climate Information Service (EOCIS) project.  The CO_ULIRS product is derived from measurements made by the Infrared Atmospheric Sounding Interferometer (IASI) onboard the MetOp satellite series. CO_ULIRS uses an optimal estimation approach to derive carbon monoxide total column amounts from IASI spectra using the University of Leicester IASI Retrieval Scheme (ULIRS).",
    "keywords": "CO_ULIRS,IASI,MetOp,Carbon Monoxide,EOCIS",
    "publicationState": "citable",
    "dataPublishedTime": "2025-07-10T09:37:52",
    "doiPublishedTime": "2025-07-10T09:40:33",
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/44507/?format=api",
        "dataPath": "/neodc/eocis/data/global_and_regional/CO_total_column",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 3440132141632,
        "numberOfFiles": 4189,
        "fileFormat": "Files are NetCDF formatted."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/12381/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/4721/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50542/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50543/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/63576/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/68624/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/68626/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/68636/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/68637/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/68640/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84456/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84457/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84458/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84459/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84460/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84461/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84462/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84463/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84464/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84465/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84466/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84467/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84468/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84469/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84470/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84471/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84472/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84473/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84474/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84475/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/84476/?format=api"
    ],
    "dataLineage": "This dataset was produced by University of Leicester in the context of the Earth Observation Climate Information Service project.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/13443/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/43216/?format=api"
    ],
    "observationcollection_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213226/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/208999/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/209000/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/209001/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/209002/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/209003/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/209004/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/209005/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/213337/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/44592/?format=api",
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2528/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "http://creativecommons.org/licenses/by/4.0/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": []
}