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/8281/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 8281,
    "uuid": "690579323c3044cab6f4cf5ac5d0b8c4",
    "title": "High Resolution Visible Imaging Instrument (HRV)",
    "abstract": "The HRV instrument is a multispectral radiometer designed for SPOT (Earth observing satellites) spacecraft. The HRV instrument provides high-resolution imaging in the visible and near-infrared portions of the electromagnetic spectrum. Operating independently of each other, the two HRVs acquire imagery in either multispectral (XS) and/or panchromatic (P) modes at any viewing angle within plus or minus 27 degrees. This off-nadir viewing enables the acquisition of stereoscopic imagery. To make sure the satellite covers every point on the earth's surface, the HRV imaging instruments offer a field of view that is wider than the greatest distance between two adjacent tracks.",
    "keywords": "",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/5319/?format=api"
    ],
    "instrumentType": "imager",
    "subInstrument": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/33250/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108885/?format=api"
    ]
}