Observation Instance
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/43952/?format=api
{ "ob_id": 43952, "uuid": "9cbc9b1875474d65ad1e4697007e88b7", "title": "CALIPSO: Cloud and Aerosol Lidar Level 2 Vertical Feature Mask Version 4-51 Product (CAL_LID_L2_VFM-Standard-V4-51)", "abstract": "The Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) was a joint mission between NASA and the French space agency Centre National d'Etudes Spatiales. The main objective of the mission was to supply a unique data set of vertical cloud and aerosol profiles.\r\n\r\nThis dataset contains cloud and aerosol lidar level 2 vertical feature mask version 4-51 data product describes the horizontal and vertical distribution of the cloud and the aerosol layers observed by the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP). CAL_LID_L2_VFM-Standard-V4-51 is the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) Lidar Level 2 Vertical Feature Mask (VFM), Version 4-51 data product. Data for this product was collected using the CALIPSO Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) instrument. The version of this product was changed from 4-20 to 4-21 to account for a change in the operating system of the CALIPSO production cluster.", "keywords": "NASA, CALIPSO, CALIOP, Cloud, Aerosol", "publicationState": "published", "dataPublishedTime": "2025-04-16T10:57:28", "doiPublishedTime": null, "updateFrequency": "", "status": "ongoing", "result_field": { "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/43953/?format=api", "dataPath": "/neodc/caliop/data/l2_vfm/v4-51", "oldDataPath": [], "storageLocation": "internal", "storageStatus": "online", "volume": 7431238114943, "numberOfFiles": 161825, "fileFormat": "Data are HDF4 formatted" }, "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/12281/?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/64153/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64154/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64155/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64159/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64163/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/64167/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/65048/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/85626/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/85629/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/85639/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/85658/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/85668/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/85999/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86000/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86001/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86002/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/86003/?format=api" ], "dataLineage": "These data were obtained from the NASA Langley Research Center Atmospheric Science Data Center and mirrored by CEDA.", "removedDataTime": null, "removedDataReason": "", "language": "English", "identifier_set": [], "projects": [ "https://api.catalogue.ceda.ac.uk/api/v2/projects/8349/?format=api" ], "observationcollection_set": [], "responsiblepartyinfo_set": [ "https://api.catalogue.ceda.ac.uk/api/v2/rpis/210078/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/210071/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/210076/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/210072/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/210077/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/210073/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/210074/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/210075/?format=api", "https://api.catalogue.ceda.ac.uk/api/v2/rpis/210079/?format=api" ], "procedureAcquisition": null, "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/43964/?format=api", "procedureComputation": null, "permissions": [ { "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2559/?format=api", "useLimitation": null, "accessConstraints": null, "accessCategory": "registered", "accessRoles": null, "label": "registered: None group", "licenceURL": "https://eosweb.larc.nasa.gov/citing-asdc-data", "licenceClassifications": "any" } ], "discoveryKeywords": [] }