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  1. Data Management
  2. DM-12129

Update the DPDD to clean up the discussion of maggies vs. Janskys

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    • DM Science

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      From the September 12, 2017 PST Meeting:

      3) How will LSST report flux measurements?

      Short discussion ended without much controversy. Robert, as Calibration Scientist, didn’t raise any objections. Chris expressed unhappiness that we’d call our flux units Jansky, instead perhaps "pseudo-Jansky” (Jansky is a unit for the specific flux, not a broad-band measure). Since no other survey ever had a delta function as their bandpass, every other survey that reported flux in Jansky is guilty, too. If you find this discussion exciting (Robert said he didn’t), please read https://github.com/lsst-pst/fluxunits/blob/master/fluxunits.pdf

      Action item: Mario will propose a revised text for DPDD (switch discussion weights
      given to Jansky and maggies).

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            Can someone with docushare powers open up Document-27758 to be world-readable?

            ctslater Colin Slater added a comment - Can someone with docushare powers open up Document-27758 to be world-readable?

            Can someone with docushare powers open up Document-27758 to be world-readable?

            If I correctly understand the Docushare permissions model, “someone” means zivezic or tjenness.

            swinbank John Swinbank added a comment - Can someone with docushare powers open up Document-27758 to be world-readable? If I correctly understand the Docushare permissions model, “someone” means zivezic or tjenness .
            tjenness Tim Jenness added a comment -

            I've pushed the button to open up the document.

            tjenness Tim Jenness added a comment - I've pushed the button to open up the document.
            lguy Leanne Guy added a comment -

            gpdf This ticket concerns only of the final, user-facing data products whereas  RFC-356 concerns the internals of the pipelines.  RFC-356 might be something we want to revisit but I don't think that this ticket reverses it. 

            lguy Leanne Guy added a comment - gpdf This ticket concerns only of the final, user-facing data products whereas   RFC-356  concerns the internals of the pipelines.   RFC-356  might be something we want to revisit but I don't think that this ticket reverses it. 
            lguy Leanne Guy added a comment - Created LCR-1459  https://project.lsst.org/groups/ccb/node/2655  

            People

              lguy Leanne Guy
              mjuric Mario Juric
              Colin Slater
              Colin Slater, Gregory Dubois-Felsmann, John Parejko, John Swinbank, Leanne Guy, Tim Jenness, Zeljko Ivezic
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