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/3552/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 3552,
    "uuid": "b4709a1a0bd8d3b68e388f0d1864bf4f",
    "title": "ITALSAT radio propagation measurement at 40GHz in the United Kingdom",
    "abstract": "Measurements of tropospheric attenuation (excess and total)   made at Sparsholt in Hampshire, UK using the ITALSAT satellite F1 beacon signal at 40 GHz.",
    "keywords": "CFARR, Chilbolton, radio propagation, 40 GHz",
    "publicationState": "citable",
    "dataPublishedTime": "2012-05-25T12:15:32",
    "doiPublishedTime": "2012-05-27T23:00:00",
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/3553/?format=api",
        "dataPath": "/badc/chilbolton/data/italsat/italsat-40ghz-beacon",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 1898632948,
        "numberOfFiles": 1372,
        "fileFormat": "Data are netCDF formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/1004/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/61/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55384/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55385/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55386/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55387/?format=api"
    ],
    "dataLineage": "Data are prepared by Chilbolton Facility for Atmospheric and Radio Research (CFARR) staff prior to submission to BADC for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2403/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2404/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/3554/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/3461/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/15053/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/15055/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/15056/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/15057/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44841/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44850/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/15063/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/15054/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44842/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44843/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44844/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/44845/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/3556/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.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": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}