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/38310/?format=api

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

{
    "ob_id": 38310,
    "uuid": "3dfc1388681941cb973a0dbd6f3056f2",
    "title": "Sentinel 5P: Tropospheric Ozone Column (O3_TCL) level 2 data",
    "abstract": "The TROPOspheric Monitoring Instrument (TROPOMI) tropospheric ozone product is a level-2c product that represents three days of averaged tropospheric ozone columns on a 0.5° by 1° latitude-longitude grid for the tropical region between 20°N and 20°S. The TROPOMI tropospheric ozone column product uses the TROPOMI Level-2 total OZONE and CLOUD products as input.\r\n\r\nThe TROPOMI instrument onboard the Copernicus Sentinel-5 Precursor is a nadir-viewing, imaging spectrometer covering wavelength bands between the ultraviolet and the shortwave infrared. The instrument uses passive remote sensing techniques to attain its objective by measuring, at the Top Of Atmosphere (TOA), the solar radiation reflected by and radiated from the earth.",
    "keywords": "Sentinel, O3, Ozone, ESA, TCL",
    "publicationState": "working",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "updateFrequency": "",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/38311/?format=api",
        "dataPath": "/neodc/sentinel5p/data/L2_O3_TCL/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 1624763475,
        "numberOfFiles": 3228,
        "fileFormat": "These files are provided in netCDF format."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/10746/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/3668/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66476/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66477/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66478/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66479/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66480/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66481/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66482/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66483/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66484/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66485/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66486/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66487/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66488/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66489/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66490/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66491/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66492/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66493/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66494/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66495/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66496/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66497/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66498/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66499/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66500/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66501/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66502/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66503/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66504/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66505/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66506/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66507/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66508/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66509/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66510/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66511/?format=api"
    ],
    "dataLineage": "Data collected and prepared by European Space Agency (ESA). Downloaded from the Collaborative Hub for use by CEDA users.",
    "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/26459/?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/182382/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/182383/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/182384/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/182385/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/182386/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/182387/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/182388/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/182389/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/182390/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/182391/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/26458/?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": []
}