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PR is a comprehensive rewrite of the SED format.  See #45 for previous discussion.  The intention is to create a flexible format that can handle many possible use cases:\n- Representing published integral or differential flux points.\n- Supporting many different normalization representations (flux, energy flux, differential flux, counts, etc.).\n- Supporting inclusion of likelihood vs. flux profiles (e.g. as in the Likelihood SED format).\n\nA few open issues/questions:\n- Currently the format lacks a specification for writing UCDs to the column metadata.  I think earlier we discussed using `TUCD`.\n- I copied the current UCDs from what is used in the 3FGL.  However it seems like the existing VO UCD types don't really map very well to the quantities that we typically use in gamma-ray astronomy.  For instance there doesn't seem to be an existing keyword that maps to differential photon flux so instead we use `phot.flux.density`.  The more logical choice would be something like `phot.counts.density`.  There also doesn't seem to be anything in the existing VO spec which could be used to represent photon counts.\n- Currently all column names and header keywords are upper case but in some ways I find lowercase more natural.  Is there a strong motivation to use upper case?\n"},"comment":{"url":"https://api.github.com/repos/open-gamma-ray-astro/gamma-astro-data-formats/issues/comments/258821335","html_url":"https://github.com/open-gamma-ray-astro/gamma-astro-data-formats/pull/65#issuecomment-258821335","issue_url":"https://api.github.com/repos/open-gamma-ray-astro/gamma-astro-data-formats/issues/65","id":258821335,"user":{"login":"kosack","id":11677812,"avatar_url":"https://avatars.githubusercontent.com/u/11677812?v=3","gravatar_id":"","url":"https://api.github.com/users/kosack","html_url":"https://github.com/kosack","followers_url":"https://api.github.com/users/kosack/followers","following_url":"https://api.github.com/users/kosack/following{/other_user}","gists_url":"https://api.github.com/users/kosack/gists{/gist_id}","starred_url":"https://api.github.com/users/kosack/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/kosack/subscriptions","organizations_url":"https://api.github.com/users/kosack/orgs","repos_url":"https://api.github.com/users/kosack/repos","events_url":"https://api.github.com/users/kosack/events{/privacy}","received_events_url":"https://api.github.com/users/kosack/received_events","type":"User","site_admin":false},"created_at":"2016-11-07T12:16:41Z","updated_at":"2016-11-07T12:16:41Z","body":"I think the column names are actually case-insensitive but case-preserving like filenames in macOS."}}
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