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The archive project will improve the user experience with the NRAO archive for the raw (visibility or otherwise) and image data from the VLA, VLBA, ALMA, and other telescopes, while not accruing significant new technical debt and retiring technical debt where necessary to improve the user experience. Interdependencies between the Workspaces system and the archive will be address within this project, but significant changes to the Workspaces software is out of scope, though limited enhancements are possible.

Key Goals

• Improve the scripting interface to the NRAO archive
  
  • Allow downloading of data
  • Display additional metadata (and/or refactor database) to enable better filtering of data
  Scriptability of the archive query interface via VO-compliant Table Access Protocol (TAP).
• Download improvements (inclusion of wget commands to retrieve data).
• Search improvements.
  • Position search fixes.
  • Frequency-dependent FOV search
  • Search based on integration time.
  Scanlist improvements
• VLA-specificMetadata metadata display improvements (helps enable VUDI)
  
  • i.e., scan list , improvements
  • sources,
  • frequency setup(s),
  • total integration times).
  • QA state
  • weblogs
• VLBA -specificdata presentation and display
  
  • Completion of VLBA data collection: Fixing corrupted Mark IV files, and adding a few missing GMVA, HSA, and Global VLBI data.
  • Downloading large numbers (>500) of correlation files for VLBA projects in bulk via the 'Select All' option.
  • Fixing the missing or incomplete metadata of some VLBA+EVLA (i.e. +Y1, +Y27) projects, without which download is impossible. 
  Enable the retirement of the legacy AAT/PPI
• Improve restore capability
  
  • Increased robustness of ALMA MOUS ingestion of EBs and calibrations (ALMA Butler)
  • Allow subsets to be downloaded(select on target, intents, spectral windows)
  • Select CASA versions automatically
• Improve User-Defined Imaging
  • Improvements to AUDI (ALMA User-Defined Imaging) and reimplementation into Workspaces
  • Add VLA User Defined Imaging Capabilitiy
  Increased robustness of ALMA MOUS ingestion of EBs and calibrations (ALMA Butler)
• Enable the retirement of the legacy AAT/PPI
• IDM? (Identity Management; might be mostly done?)
• Support ngVLA archive workspaces (what is this???)

Definition of Done

• Archive has the functional equivalency of the legacy AAT and the overall user experience is improved.
• As a user, I can more easily identify data I'm interested in without having to download it first.
• Scanlists are improved

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