now that stackFrames propagates SLITEDGE we can do flatCorrect before stackFrames in the arc recipe.

Author: KathleenLabrie

geminidr/gnirs/recipes/sq/recipes_ARC_XD_SPECT.py

@@ -19,8 +19,8 @@ def makeProcessedArc(p):
     p.addDQ()
     p.ADUToElectrons()
     p.addVAR(poisson_noise=True, read_noise=True)
-    p.stackFrames()
     p.flatCorrect()
+    p.stackFrames()
     p.attachPinholeModel()
     p.determineWavelengthSolution()
     p.determineDistortion(spatial_order=1, step=4)