JP-3750: Fix IFU cube moving target RA, Dec metadata (spacetelescope#…

…8911)
drlaw1558 · Oct 24, 2024 · a2d6ba8 · a2d6ba8
1 parent 200b1ab
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diff --git a/changes/8911.cube_build.rst b/changes/8911.cube_build.rst
@@ -0,0 +1 @@
+For moving-target IFU data, set RA, Dec header information of s3d products according to the mean of input models instead of the first input model.
diff --git a/jwst/cube_build/ifu_cube.py b/jwst/cube_build/ifu_cube.py
@@ -2436,6 +2436,14 @@ def blend_output_metadata(self, IFUCube):
                 "meta.filename",
             ],
         )
+        # For moving targets, set RA, Dec equal to the average
+        mt_avra = getattr(self.input_models_this_cube[0].meta.wcsinfo, "mt_avra", None)
+        mt_avdec = getattr(self.input_models_this_cube[0].meta.wcsinfo, "mt_avdec", None)
+        if mt_avra is not None:
+            IFUCube.meta.wcsinfo.mt_ra = mt_avra
+            IFUCube.meta.wcsinfo.mt_dec = mt_avdec
+            IFUCube.meta.target.ra = mt_avra
+            IFUCube.meta.target.dec = mt_avdec
 
     # ********************************************************************************
     def find_ra_dec_offset(self, filename):