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/19118/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 19118,
    "uuid": "411a1599c96e43659a8141749c277ef4",
    "title": "ESA Aerosol Climate Change Initiative (Aerosol CCI): Level 3 aerosol products from AATSR (ORAC algorithm), Version 3.02",
    "abstract": "The ESA Climate Change Initiative Aerosol project has produced a number of global aerosol Essential Climate Variable (ECV) products from a set of European satellite instruments with different characteristics. \r\n\r\nThis dataset comprises the Level 3 aerosol products from AATSR, using the ORAC algorithm, version 3.02. Both daily and monthly gridded products are available\r\n\r\nFor further details about these data products please see the linked documentation.",
    "keywords": "ESA, CCI",
    "publicationState": "published",
    "dataPublishedTime": "2016-05-07T12:20:50",
    "doiPublishedTime": null,
    "updateFrequency": "",
    "status": "superseded",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/19119/?format=api",
        "dataPath": "/neodc/esacci/aerosol/data/AATSR_ORAC/L3/v3.02",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 13846196248,
        "numberOfFiles": 3576,
        "fileFormat": "Data are in NetCDF format"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3607/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/529/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25983/?format=api",
        "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/54500/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54501/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54502/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54503/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54504/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54505/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54506/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54507/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54508/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54509/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54510/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54511/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54512/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54513/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54514/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54515/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54516/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54517/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54518/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54519/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54520/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54521/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54522/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54523/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54524/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54525/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54526/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54527/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54528/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54529/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54530/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54531/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54532/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54533/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54534/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54535/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54536/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54537/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54538/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54539/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54540/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54541/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54542/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54543/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54544/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54545/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54546/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54547/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54548/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54549/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54550/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54551/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54552/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54553/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54554/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54555/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54556/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54557/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54558/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54559/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54560/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54561/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54562/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54563/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54564/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54565/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54566/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54567/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54568/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54569/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54570/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54571/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54572/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54573/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54574/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54575/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54576/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54577/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54578/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54579/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54580/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54581/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54582/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54583/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54584/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54585/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54586/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54587/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54588/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54589/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54590/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54591/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54592/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54593/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54594/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54595/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54596/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54597/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54598/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54599/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54600/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54601/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54602/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54603/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54604/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54605/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54606/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54607/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54608/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54609/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54610/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54611/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54612/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54613/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54614/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54615/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54616/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54617/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54618/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83743/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83744/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83745/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83746/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83747/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83748/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83749/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83750/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83751/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83752/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83753/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83754/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83755/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83756/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83757/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83758/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83759/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/83760/?format=api"
    ],
    "dataLineage": "Data were processed by the ESA CCI Aerosol project team and supplied to CEDA in the context of the ESA CCI Open Data Portal Project.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/13341/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/13340/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/30128/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/71945/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/71942/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/71944/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105361/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/71941/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75200/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/104961/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105185/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/71943/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/71940/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/13636/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2555/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_aerosol_terms_and_conditions.pdf",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}