Removed unproject_near_field function since unproject_phase automatic…

…ally unprojects the near field corrections.
RadioAstronomySoftwareGroup · Jan 10, 2025 · 8819458 · 8819458 · github-actions · Jan 11, 2025
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commit 8819458
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Showing 2 changed files with 4 additions and 27 deletions.
diff --git a/src/pyuvdata/utils/phasing.py b/src/pyuvdata/utils/phasing.py
@@ -2652,7 +2652,9 @@ def _get_delay(uvd, focus_x, focus_y, focus_z, flipconj):
     ind1, ind2 = _nants_to_nblts(uvd)
 
     # Antenna positions in ENU frame
-    antpos = uvd.telescope.get_enu_antpos()
+    antpos = uvd.telescope.get_enu_antpos() - np.median(
+        uvd.telescope.get_enu_antpos(), axis=0
+    )
 
     # Get tile positions for each baseline
     tile1 = antpos[ind1]  # Shape (Nblts, 3)

diff --git a/src/pyuvdata/uvdata/uvdata.py b/src/pyuvdata/uvdata/uvdata.py
@@ -4354,24 +4354,6 @@ def _apply_w_proj(self, *, new_w_vals, old_w_vals, select_mask=None):
             (-1j * 2 * np.pi) * delta_w_lambda[:, :, None]
         )
 
-    def unproject_near_field(self, flipconj=False):
-        """
-        Undo near-field phasing.
-
-        TODO: How to implement this/Is it needed?
-
-        Parameters
-        ----------
-        flipconj : bool
-            Is the conjugation scheme "flipped" compared to
-            what pyuvdata expects? (Default False)
-
-        Returns
-        -------
-        None (performs operations inplace)
-        """
-        pass
-
     def unproject_phase(
         self, *, use_ant_pos=True, select_mask=None, cat_name="unprojected"
     ):
@@ -4396,9 +4378,6 @@ def unproject_phase(
         ValueError
             If the object is alread unprojected.
         """
-        # Start by undoing the near-field phasing
-        # self.unproject_near_field()
-
         # select_mask_use is length Nblts, True means should be unprojected
         # only select blts that are actually phased.
         if select_mask is not None:
@@ -4813,10 +4792,6 @@ def phase(
             If the `cat_name` is None.
 
         """
-        # key = list(self.phase_center_catalog.keys())[-1]
-        # if self.phase_center_catalog[key]["cat_name"] != "":
-        #     self.unproject_near_field()
-
         if cat_type != "unprojected":
             if lon is None:
                 if ra is None:
@@ -4841,7 +4816,7 @@ def phase(
                 dist_qt = copy.deepcopy(dist)
             else:
                 if cat_type == "near_field":
-                    dist_qt = dist * units.meters
+                    dist_qt = dist * units.m
                 else:
                     dist_qt = dist * units.parsec