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/27467/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 27467,
    "uuid": "b33ec61670644124ab4af661009ec507",
    "title": "Sentinel 5P: Methane (CH4) Total Column level 2 data",
    "abstract": "This dataset contains level 2 (geolocated) total column Methane (CH4) data from the TROPOspheric Monitoring Instrument (TROPOMI) aboard the Sentinel 5P satellite.\r\n\r\nSentinel 5 Precursor (S5P) was launched on the 13th October 2017 carrying TROPOMI. Methane (CH4) is an important atmospheric trace gas for our understanding of tropospheric chemistry. TROPOMI aims at providing CH4 column concentrations with high sensitivity to the Earth’s surface, good spatiotemporal coverage, and sufficient accuracy to facilitate inverse modeling of sources and sinks. TROPOMI uses absorption information from the Oxygen-A Band (760nm) and the SWIR spectral range to monitor CH4 abundances in the Earth's atmosphere.\r\n\r\nThe Sentinel-5 Precursor mission flies in loose formation (about 3.5 – 5 minutes behind) with the S-NPP (SUOMI-National Polar-orbiting Partnership) mission to use VIIRS (Visible Infrared Imaging Radiometer Suite) cloud information to select cloud-free TROPOMI pixels for high quality methane retrieval.",
    "keywords": "Sentinel, Methane, CH4, TROPOMI",
    "publicationState": "published",
    "dataPublishedTime": "2022-11-14T15:12:40",
    "doiPublishedTime": null,
    "updateFrequency": "",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/27468/?format=api",
        "dataPath": "/neodc/sentinel5p/data/L2_CH4/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 2084217313363,
        "numberOfFiles": 69939,
        "fileFormat": "These data are in NetCDF format."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/10745/?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/7031/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/7033/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55535/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66547/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66548/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66550/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66551/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66552/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66565/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66573/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66574/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66578/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66579/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66580/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66582/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66614/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66616/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66661/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66664/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66678/?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/66723/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66724/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66739/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66750/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67045/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67049/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67065/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67070/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67082/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67096/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67114/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67156/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67161/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67162/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67164/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67165/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67178/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67179/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67180/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67181/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67182/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67183/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67185/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67186/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67187/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67188/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67189/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67190/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67191/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67192/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67193/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67194/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67195/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67196/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67197/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67198/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67199/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67200/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67201/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67202/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67203/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67204/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67205/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67206/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67207/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67208/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67209/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67210/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67211/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67212/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67213/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67214/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67215/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67216/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67217/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67218/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67219/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67220/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67221/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67222/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67223/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67224/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67225/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67226/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67227/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67228/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67229/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67230/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67231/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67232/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67233/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67234/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80050/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80051/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/80052/?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/30129/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/26459/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114826/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114823/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/145843/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114824/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114825/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114827/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114829/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114830/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114831/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/114828/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/27471/?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": []
}