public:lta_howto

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public:lta_howto [2017-10-16 11:40] – [How to find data in the archive] Reinoud Bokhorstpublic:lta_howto [2018-07-10 09:38] – Reinoud Bokhorst
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 The LTA catalogue can be searched using the anonymous account (AWWORLD). This account gives direct access to the project "All public data", and search queries will return results of the entire catalogue because metadata are public for all LTA content. The LTA catalogue can be searched using the anonymous account (AWWORLD). This account gives direct access to the project "All public data", and search queries will return results of the entire catalogue because metadata are public for all LTA content.
  
-Staging and subsequent downloading of public data always requires an account (if you have it, this is your MoM account) with LTA user access. If you do not have an account yet, you can register with "[[https://lofar.astron.nl/useradministration/public/setUpUserAccount.do|Create account]]". LTA access privileges will need to be granted by Science Operations and Support. Please, __once you have created your account, contact Science Operations and Support asking for LTA privileges__.+Staging and subsequent downloading of public data always requires an account (if you have it, this is your MoM account) with LTA user access. If you do not have an account yet, you can register with "[[https://lofar.astron.nl/useradministration/public/setUpUserAccount.do|Create account]]". LTA access privileges will need to be granted by Science Operations and Support. Please, __once you have created your account, contact Science Operations and Support asking for LTA privileges__.  
 + 
 +Step-by-step guide to access public data:  
 +  * log in to https://lta.lofar.eu/  
 +  * click SELECT PROJECT in the top menu, then select 'All Public data' from the list of project groupings 
 +  * click SEARCH in the top menu 
 +  * click on "here" (more advanced search option) 
 +  * choose “All Observations and Pipelines” 
 +  * find the relevant observation by either:  
 +    * choosing the project code from the dropdown list (if you know which project your observation of interest was taken under) 
 +    * specify the 'observation id' of the observation(s) and/or pipeline(s) that you are interested in 
 +  * click the 'Search' button at the bottom 
 +  * from the screen that follows, you should be able to stage the dataproducts
  
 === Project data === === Project data ===
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 Once you have a list of dataproducts, observations or pipelines, you can use the check boxes to select which files you want to download. The first check box can be used to select or deselect all files or observations on a page. Once you have a list of dataproducts, observations or pipelines, you can use the check boxes to select which files you want to download. The first check box can be used to select or deselect all files or observations on a page.
  
-{{:public:lta_howto2.png|}}+{{:public:lta_staging_1.png|}}
  
 The LOFAR Archive stores data on magnetic tape. This means that it cannot be downloaded right away, but has to be copied from tape to disk first. This process is called 'staging'. The LOFAR Archive stores data on magnetic tape. This means that it cannot be downloaded right away, but has to be copied from tape to disk first. This process is called 'staging'.
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 ===== Troubleshooting ===== ===== Troubleshooting =====
  
-  * There is a [[public:lta_faq|LTA FAQ page]] that should help with the common difficulties. +  * There is a [[public:lta_faq|LTA FAQ page]] that should help with the common difficulties. 
 +  * [[public:lta_new|Update July 11, 2018]]
  • Last modified: 2020-11-04 15:36
  • by Bernard Asabere