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OPAL accounts are used by the Astronomy community - for details please see the OPAL Users Guide.

In the DAP, OPAL accounts are used to:


  • access embargoed data for ATNF Pulsar and CASDA observations , where the OPAL user is a member of the project team associated with the observation
  • provide an email address for large (>2GB) downloads

Data that is not embargoed is publicly available.

Sign in with OPAL account


If you do not have an OPAL account, register here. For more information about OPAL see the OPAL Users Guide.

Access and download large collections

Astronomy collections are typically large. In the DAP, large collections have additional download options that OPAL users can access by logging into the DAP with their OPAL account details.

For further details see the following help pages:

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