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/25900/?format=api

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

{
    "ob_id": 25900,
    "uuid": "4e1ed175588d41f193dd6f8f0140e7e3",
    "title": "Sentinel 5P: TROPOspheric Monitoring Instrument (TROPOMI) Radiance level 1b data.",
    "abstract": "This dataset contains level 1b earth radiance spectra data from the TROPOspheric Monitoring Instrument (TROPOMI) aboard the European Space Agency (ESA) Sentinel 5P satellite. Sentinel 5P was launched on 13th October 2017. Level 1b data is geo-located and radiometrically corrected top of the atmosphere Earth radiances in all spectral bands. There is one L1b radiance product type for each spectral band (product identifiers L1B_RA_BD1 through L1B_RA_BD8). The radiance products are the main input for the Level-2 processors.\r\n\r\nSentinel 5P aims to provide atmospheric measurements relating to air quality, climate forcing, ozone and ultraviolet radiation. This data looks to build on the data from GOME, SCIAMACHY and OMI missions. Data are provided by the European Space Agency (ESA) and are made available via CEDA to any registered user.",
    "keywords": "Radiance, ESA, Sentinel 5P",
    "publicationState": "published",
    "dataPublishedTime": "2022-11-04T15:24:10",
    "doiPublishedTime": null,
    "updateFrequency": "",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/26539/?format=api",
        "dataPath": "/neodc/sentinel5p/data/L1_RA/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 840668105427159,
        "numberOfFiles": 590321,
        "fileFormat": "These data are in NetCDF format. As downloaded from the ESA data hubs."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/7155/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/1/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55535/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66565/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66578/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66624/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66625/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66715/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66716/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66717/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66971/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66972/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66973/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66974/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66975/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66976/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66977/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66978/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66979/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66980/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66981/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66982/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66983/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66984/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66985/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66986/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66987/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66988/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66989/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66990/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66991/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66992/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66993/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66994/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66995/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66996/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66997/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66998/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66999/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67000/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67001/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67002/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67003/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67004/?format=api"
    ],
    "dataLineage": "Data collected and prepared by European Space Agency (ESA). Downloaded from the Collaborative Hub for use by registered users of CEDA.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/12321/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/26538/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/30129/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108301/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108302/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108303/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108305/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108306/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/143693/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/186573/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108304/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108308/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108307/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/26540/?format=api",
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2586/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "https://sentinel.esa.int/documents/247904/690755/Sentinel_Data_Legal_Notice",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": []
}