{"ob_id":10939,"uuid":"1ed5a6870903426abef500c6bc060a37","title":"Royal Observatory Greenwich Solar Images (1903-1942)","abstract":"A collection of solar images on prints and glass plates. These were taken, in part, at the Royal Observatory, Greenwich, and cover the period 1903 - 1942. The images are taken over the visible spectrum, as well as through Ca II K and H alpha filters. There are four main kinds of image:\r\n- Solar disc image\r\n- Solar limb image (coronagraph images)\r\n- Solar limb and disc image (the superposition of the above two)\r\n- Time series (for events of particular interest, taken through an H alpha filter. There are only a handful of these)","keywords":"solar images, plates, Greenwich","publicationState":"working","dataPublishedTime":null,"doiPublishedTime":null,"updateFrequency":"notPlanned","status":"completed","result_field":{"ob_id":"https://catalogue.ceda.ac.uk/api/v2/observations/19817/?format=json","dataPath":"http://www.ukssdc.ac.uk/cgi-bin/wdcc1/secure/rog_image_availability.pl","oldDataPath":[],"storageLocation":"external","storageStatus":"offline","volume":0,"numberOfFiles":0,"fileFormat":"images"},"timePeriod":"https://catalogue.ceda.ac.uk/api/v2/times/3037/?format=json","geographicExtent":null,"nonGeographicFlag":false,"phenomena":[],"dataLineage":"needed","removedDataTime":null,"removedDataReason":"","language":"English","identifier_set":["https://catalogue.ceda.ac.uk/api/v2/identifiers/8982/?format=json","https://catalogue.ceda.ac.uk/api/v2/identifiers/8981/?format=json"],"projects":["https://catalogue.ceda.ac.uk/api/v2/projects/19805/?format=json"],"observationcollection_set":["https://catalogue.ceda.ac.uk/api/v2/observationcollections/19784/?format=json"],"responsiblepartyinfo_set":["https://catalogue.ceda.ac.uk/api/v2/rpis/39326/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/39325/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/39327/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/39329/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/39330/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/39332/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/39331/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/39328/?format=json"],"procedureAcquisition":null,"procedureCompositeProcess":null,"procedureComputation":null,"permissions":[{"ob_id":"https://catalogue.ceda.ac.uk/api/v2/observations/2528/?format=json","useLimitation":null,"accessConstraints":null,"accessCategory":"public","accessRoles":null,"label":"public: None group","licenceURL":"http://creativecommons.org/licenses/by/4.0/","licenceClassifications":"any"}],"discoveryKeywords":[]}