Observation Collection Instance – Django REST framework

Get a list of Collections objects. Collections have a 1:1 mapping with Observations.

### Available end points:

- `/observationcollections/` - Will list all Collections in the database
- `/observationcollections.json` - Will return all Collections in json format
- `/observationcollections/<object_id>/` - Returns Collections object with that id

### Available Methods:

- `GET`
- `HEAD`

### Available filters:

- `uuid`
- `title`
- `keywords`
- `discoveryKeywords`
- `publicationState`

### How to use filters:

- `/observationcollections/?uuid=ab4ca8d019d148f78afba1cd20872bdd`

- `/observationcollections.json?publicationState=citable`

GET /api/v2/observationcollections/44908/?format=api

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

{
    "ob_id": 44908,
    "uuid": "463862326d574951bea52527f9df397d",
    "title": "ESA Precursors Climate Change Initiative (Precursors_cci): Precursors IASI NH3 L3 data products v4R",
    "abstract": "This collection of data forms the European Space Agency's (ESA) Climate Change Initiative (CCI) Precursors project IASI (Infrared Atmospheric Sounding Interferometer) NH3 (Ammonia) L3 (Level 3) data products.\r\n\r\nProducts included in this collection are:\r\n- IASI/Metop-A NH3 L3 product\r\n- IASI/Metop-B NH3 L3 product\r\n- IASI/Metop-C NH3 L3 product\r\n- IASI NH3 L3 merged product\r\n\r\nThe version number is 4.0.1R. Data are available in NetCDF format.",
    "keywords": "ESA, CCI, Precursors",
    "discoveryKeywords": [],
    "publicationState": "citable",
    "dataPublishedTime": "2026-02-26T12:23:32",
    "doiPublishedTime": "2026-02-26T16:06:08",
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/44909/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/44910/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/44911/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/44912/?format=api"
    ],
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/13746/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215148/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215149/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215150/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215151/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215152/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215153/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215154/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/215155/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/216654/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/216655/?format=api"
    ]
}