Interaction

• Expectation is that archive would open CARTA in a new browser tab to load images for interactive viewing
• should have normal CARTA interface modulo restricted functionality for the remote version

• Unclear right now if we should use a slimmed down CARTA in the archive window for previewing or just have cached jpg/png
  

Requirements

Must have

• Seamlessly be able to show VLA or ALMA images, location of images should be transparent to users
  • May require backend servers in CV to view ALMA and backend servers in NM to view VLA/VLASS images
  • VLA and ALMA images should be able to be opened/overlayed in a single session
• Simply method of having the full image associated with a preview  from archive-new open in a CARTA session on the users browser.
• Plot a spectrum for specific pixel, and/or region (or source mask included in ancillary archive files) and download to user's computer as graphic and text file
• Overlay line lists and shift to particular system velocity/redshift
• Ability to define regions in spatial coordinates and frequency(velocity) that can be fed back to functional archive interface to enable image cutouts
• Open and overlay user specified (uploaded or linked) file
• Save and download jpg/png/pdf/eps of current view to user's computer

Should have

• Simple method of opening additional images of same field in the same CARTA session and ability to overlay contours of continuum, mom0/8, and/or cube
• Gaussian fitting in spatial and spectral domain
• Ability to generate moment maps and download to user's computer
• Ability to produce position-velocity diagrams and download to user's computer
• Overlay archival spectral from major surveys (e.g., Orion KL) and shift to source velocity (SMA correlator config has this capability)

Could have

• Plot a catalog of source positions (from archived catalog, user uploaded, and support variety of online catalogs).
  
• Similar features exist in ds9 to fetch catalogs like 2MASS, NVSS, FIRST, IRAS, this ability would be good.
• Ability to fetch archival images from other observatories/missions
  • e.g., ROSAT, XMM, 2MASS, DSS, SDSS, MSX, Spitzer, Herschel, similar feature exists currently in ds9
• Ability to save a particular state of CARTA and access later with a link that can also be shared with colleagues
• Have other images from the archive of the same region suggested for overlay and display
• Save datacube animation as animated gif or other movie format to luser's computer
  

Will not have

• Crashes