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/30115/?format=api

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

{
    "ob_id": 30115,
    "uuid": "d69dccc3b50041bb91a126b85e9154d0",
    "title": "Sentinel 5P: Suomi-NPP VIIRS cloud level 2 data",
    "abstract": "The S5P NPP Cloud product contains information on cloud and scene homogeneity for TROPOMI scenes, derived from operational products from the VIIRS (Visible Infra-red Imaging Radiometer Suite) on board the Suomi National Polar-orbiting Partnership (S-NPP) platform. S5P operates in loose formation orbit with NPP, so that measurements from VIIRS are well co-located with TROPOMI, with a time difference of about 3.5 minutes. There is no specific validation of auxiliary products within the S5P Mission Performance Centre.\r\n\r\nSentinel 5 Precursor (S5P) was launched on the 13th October 2017 carrying the TROPOspheric Monitoring Instrument (TROPOMI). The TROPOMI instrument onboard S5P 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.\r\n\r\nThe S5P level 2 methane product is dependent on having information on cloud occurrence at spatial resolution finer than that achievable from TROPOMI itself. This information is also useful for other purposes, including assessing the influence of cloud on other L2 products and issues related to spatial co-registration. NPP-Cloud was therefore developed as a level 2 auxiliary product to describe cloud in the TROPOMI field of view (FOV), using co-located observations of VIIRS on the U.S. S-NPP. \r\n\r\nThe main information contained in the S5P-NPP product is:\r\n\r\n1. A statistical summary for each S5P FOV of the NPP-VIIRS L2 Cloud Mask (VCM).\r\n2. The mean and standard deviation of the sun-normalised radiance in a number of VIIRS moderate resolution bands.\r\nThis information is provided for three S5P spectral bands (to account for differences in spatial sampling).",
    "keywords": "Sentinel, ESA, VIIRS, cloud, Suomi-NPP, S5P",
    "publicationState": "published",
    "dataPublishedTime": "2022-08-12T08:00:25",
    "doiPublishedTime": null,
    "updateFrequency": "",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/30116/?format=api",
        "dataPath": "/neodc/sentinel5p/data/L2_NP/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 32715044142843,
        "numberOfFiles": 202744,
        "fileFormat": "These data are in NetCDF format."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/9000/?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/66624/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66625/?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/66973/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66974/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66980/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66992/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66995/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67368/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67369/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67370/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67371/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67373/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67374/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67378/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67379/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67380/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67381/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67383/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67385/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67386/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67387/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67388/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67389/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67390/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67391/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67392/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67393/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67395/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67396/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67400/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67401/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67402/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67403/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67404/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67405/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67406/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67407/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67409/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67410/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67411/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67412/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67413/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67414/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67415/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67416/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67417/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67418/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67419/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67421/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67422/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67423/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67424/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67425/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67426/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92111/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92113/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92114/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92115/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92116/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92117/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92118/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92119/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92120/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92121/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92122/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92123/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92125/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92126/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92128/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92129/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92130/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92131/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92132/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92133/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92134/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92135/?format=api",
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    ],
    "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/130127/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130130/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130132/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/146236/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130131/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130128/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130129/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130135/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/146237/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/130133/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/180862/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/37710/?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": []
}