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/45410/?format=api

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

{
    "ob_id": 45410,
    "uuid": "933ce89626b246b6ade9a9c6a0dcddf5",
    "title": "Solar-induced Chlorophyll Fluorescence from GOSAT's TANSO-FTS by the University of Leicester (v4.0)",
    "abstract": "Solar-induced Chlorophyll Fluorescence (SIF) data created from the Greenhouse Gas Observing Satellite (GOSAT) Level 1B data using the University of Leicester Full-Physics retrieval scheme (UoL-FP). Dataset contains Level 2 and Level 3 SIF products, using combinations of S and P polarisations, exhibiting variable global coverage for the period between April 2009 and July 2025. Level 2 data are in daily files and are not averaged. Level 3 data are averaged spatially and temporally on monthly and weekly timescales.\r\n\r\nThe SIF data was derived from L1B data from the TANSO-FTS (Thermal and Near Infrared Sensor for carbon Observation - Fourier Transform Spectrometer) instrument on the GOSAT satellite. SIF at top of atmosphere has been extracted from two narrow micro-windows outside the Oxygen A-band, at around 755 nm and 772 nm.\r\n\r\nFor more information on the retrieval setup and bias correction, please see Part II Remote Sensing of Chlorophyll Fluorescence: https://hdl.handle.net/2381/42868.",
    "keywords": "Solar Induced Fluorescence,Sun Induced Fluorescence,SIF,GOSAT,Global,TANSO-FTS",
    "publicationState": "published",
    "dataPublishedTime": "2026-08-10T15:11:12",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://catalogue.ceda.ac.uk/api/v2/observations/46186/?format=api",
        "dataPath": "/neodc/uol_gosat_sif/data/v4.0",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 3752414551,
        "numberOfFiles": 6786,
        "fileFormat": "NetCDF"
    },
    "timePeriod": "https://catalogue.ceda.ac.uk/api/v2/times/13206/?format=api",
    "geographicExtent": "https://catalogue.ceda.ac.uk/api/v2/bboxes/5040/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/50415/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/50417/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/50559/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/50561/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/61074/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/61079/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/61080/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/61081/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/61086/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/61087/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/61088/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/61089/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/61090/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/61091/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/61092/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/62501/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66357/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66358/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66359/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66360/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66361/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66362/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66363/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66364/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66365/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66366/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66367/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66368/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66369/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66370/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66371/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66372/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66373/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66374/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66375/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66376/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66377/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66378/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66379/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66380/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66381/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66382/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66383/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66384/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66385/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66386/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66387/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/66388/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/103078/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/103079/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/103080/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/phenomona/103081/?format=api"
    ],
    "dataLineage": "These data were produced by the National Centre for Earth Observation at the University of Leicester using the ALICE High Performance Computing Facility. Part of the data processing was also done on JASMIN, the UK’s collaborative data analysis environment (https://www.jasmin.ac.uk)",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://catalogue.ceda.ac.uk/api/v2/projects/5002/?format=api"
    ],
    "observationcollection_set": [
        "https://catalogue.ceda.ac.uk/api/v2/observationcollections/30127/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://catalogue.ceda.ac.uk/api/v2/rpis/220555/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/217261/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/217262/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/217263/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/217264/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/217265/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/217266/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/217260/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/217267/?format=api",
        "https://catalogue.ceda.ac.uk/api/v2/rpis/217268/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://catalogue.ceda.ac.uk/api/v2/composites/28027/?format=api",
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://catalogue.ceda.ac.uk/api/v2/observations/2526/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
            "licenceClassifications": "any, attribution required"
        }
    ],
    "discoveryKeywords": []
}