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The science-ready data products are exposed through standard Virtual Observatory protocols to facilitate their access and exploration.

The Apertif Time-Domain DR2 data is hosted on the Apertif Long Term Archive (ALTA) system. We recommend astronomers to use the VO interfaces for data discovery. The data published in the VO can be accessed using a web browser at https://vo.astron.nl (how to access the data can be found here). Details on other protocols are listed below. These interfaces will redirect to ALTA file servers for data access where appropriate. ALTA is the Apertif Long Term Archive system.

In particular, the protocols offered are the Tabular Access Protocol (TAP), Simple Application Messaging Protocol (SAMP) and the Simple Image Access protocol (SIA). TAP and SAMP enables queries to explore the data in a tabular form using tools such as TOPCAT. TOPCAT is an interactive graphical viewer and editor for tabular data, it enables the interactive exploration of large tables performing several types of plotting, statistics, editing and visualization of tables. SIA enables the rapid display of images and cubes through all sky atlas tools such as ALADIN. ALADIN is an interactive sky atlas allowing the user to visualize digitized astronomical images/cubes and superimpose entries from astronomical catalogues or databases.The data published in the VO can also be accessed using a web browser at https://vo.astron.nl (how to access the data can be found here).

Data Usage Policy

Papers making use of this data should include the following acknowledgement:

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