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  1. Data Management
  2. DM-11522

Set NO_DATA bit in coadd mask iff 0 epochs contribute to a pixel in assembleCoadd

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    • Story Points:
      2
    • Sprint:
      Alert Production F17 - 8
    • Team:
      Data Release Production

      Description

      In `assemble()`, we set the NO_DATA mask bit for any pixel where the variance == 0 through coaddUtils.setCoaddEdgeBits. This criteria was a shortcut to determine whether any warps contributed to a pixel's stacked value. It worked for the two statistics available at the time: MEAN and MEANCLIP. In DM-4158 we now allow most available statistics, some of which (e.g. NPOINT, SUM) set the variance=0 intentionally, having the unfortunate consequence of rendering the whole mask with NO_DATA.

      I'm marking this as dependent on DM-10907, because it is trivial with a number map in hand.

      With this change I'll also remove requirement in validate() that doInterp=False if a statistic with no uncertainties is used.

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              Assignee:
              yusra Yusra AlSayyad
              Reporter:
              yusra Yusra AlSayyad
              Watchers:
              Perry Gee, Yusra AlSayyad
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