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/12893/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 12893,
    "uuid": "5aeeae2bd877479c9617c45c4345ff51",
    "title": "ALPHASAT: KA/Q band radio propagation measurements collection from European sites using the TDP5 Propagation Beacon",
    "abstract": "A collection of measurements of radio propagation in the KA/Q band measured from various European sites using the Aldo Paradoni Payload (TDP5) propagation beacon.\r\n\r\nMeasurements were made at 20 and 40 GHz frequencies.\r\n\r\nThe measurements were made as part of the ESA funded ASALASCA (Large Scale Assessment of KA/Q band atmospheric channel using the ALPHASAT TDP5 Propagation beacon) project. \r\n\r\nThe collection is additionally supplemented by surface meteorological measurements from the Chilbolton Observatory, Hampshire, UK for use in conjunction with the radio propagation measurements made at Chilbolton.\r\n\r\nMeasurements began in July 2016 and are presently ongoing.",
    "keywords": "ALPHASAT, radio propagation, ESA, ASALASCA, KA/Q Band",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2017-04-24T13:26:20",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/3471/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/3482/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/3531/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/3535/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/3611/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12889/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12904/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12905/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12906/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12907/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12908/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12909/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12911/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12912/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12913/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12914/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12915/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12916/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12917/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12918/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12919/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12921/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/12925/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/25386/?format=api"
    ],
    "identifier_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/98437/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49332/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49331/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49330/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/98436/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/98438/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/105445/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49466/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/98439/?format=api"
    ]
}