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

### Available end points:

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

### Available Methods:

- `GET`
- `HEAD`

### Available filters:

- `title`
- `uuid`
- `keywords`
- `instrumentType`

### How to use filters:

- `/instruments/?title__startwith!=Instrument.title: DETAILS NEEDED`
- `/instruments/?uuid=c7fa005e2095425392b18adbd7b40617`
- `/instruments.json?instrumentType=radiometer`

GET /api/v2/instruments/13061/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 13061,
    "uuid": "f4908ca5036544bc8634bc1c94fc31a7",
    "title": "Leica GS10 GNSS receivers (ncl-leica-gnss)",
    "abstract": "Global Navigation Satellite Systems (GNSS) receiver that logs dual frequency US GPS and Russian GLONASS data for subsequent data processing to enable millimetre level positioning and estimation of atmospheric water vapour. Operated by logging the observables to memory and (usually) post-processed using scientific GNSS geodetic software.\r\n\r\nThis instrument measures dual frequency GPS and GLONASS code and carrier phase satellite to receiver measurements. Parameters measured include: \r\nL1 GPS carrier phase data \r\nL2 GPS carrier phase data \r\nC1 GPS pseudorange data \r\nP2 GPS pseudorange data \r\nS1 GPS signal to noise ratio \r\nS2 GPS signal to noise ratio \r\nL1 GLONASS carrier phase data \r\nL2 GLONASS carrier phase data \r\nC1 GLONASS pseudorange data \r\nP2 GLONASS pseudorange data \r\nS1 GLONASS signal to noise ratio \r\nS2 GLONASS signal to noise ratio \r\n\r\nThis instrument has a measurement frequency of 10Hz and the output data held at CEDA has a data frequency of 1Hz. \r\n\r\nThis instrument was operated by Newcastle University.",
    "keywords": "ncl-leica-gnss",
    "identifier_set": [],
    "instrumentType": "other_instrument_type",
    "subInstrument": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49995/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/141001/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/141002/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/141003/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49996/?format=api"
    ]
}