More tweaks to how SWARM-era data is handled in MIR

pyuvdata/uvdata/mir.py

@@ -50,6 +50,7 @@ def read_mir(
         pseudo_cont=False,
         rechunk=None,
         compass_soln=None,
+        swarm_only=True,
         run_check=True,
         check_extra=True,
         run_check_acceptability=True,
@@ -102,6 +103,8 @@ def read_mir(
                 select_where += [("corrchunk", "eq", corrchunk)]
             elif not pseudo_cont:
                 select_where += [("corrchunk", "ne", 0)]
+            if swarm_only:
+                select_where += [("correlator", "eq", 1)]
 
         if select_where:
             mir_data.select(where=select_where)

pyuvdata/uvdata/mir_parser.py

@@ -3689,7 +3689,7 @@ def redoppler_data(
                 self.vis_data, shift_tuple_list, inplace=True, flag_adj=flag_adj
             )
 
-    def _make_v3_compliant(self, swarm_only=True):
+    def _make_v3_compliant(self):
         """
         Update MIR metadata for export to UVData.
 
@@ -3727,9 +3727,8 @@ def _make_v3_compliant(self, swarm_only=True):
         # First thing -- we only want modern (i.e., SWARM) data, since the older (ASIC)
         # data is not currently supported by the data handling tools, due to changes
         # in the underlying file format.
-        if swarm_only:
-            self.select(where=("correlator", "eq", 1))
-
+        # if swarm_only:
+        #     self.select(where=("correlator", "eq", 1))
         # Get SMA coordinates for various data-filling stuff
         sma_lat, sma_lon, sma_alt = get_telescope("SMA").telescope_location_lat_lon_alt
 

pyuvdata/uvdata/uvdata.py

@@ -10587,6 +10587,9 @@ def read_mir(self, filepath, **kwargs):
             Optional argument, specifying the path of COMPASS-derived flagging and
             bandpass gains solutions, which are applied prior to any potential spectral
             averaging (as triggered by using the `rechunk` keyword).
+        swarm_only : bool
+            By default, only SMA SWARM data is loaded. If set to false, this will also
+            enable loading of older ASIC data.
         run_check : bool
             Option to check for the existence and proper shapes of parameters
             before writing the file.
@@ -11423,6 +11426,7 @@ def read(
         pseudo_cont=False,
         rechunk=None,
         compass_soln=None,
+        swarm_only=True,
         recompute_nbls: bool | None = None,
     ):
         """
@@ -11826,6 +11830,9 @@ def read(
             "flexible polarization", which compresses the polarization-axis of various
             attributes to be of length 1, sets the `flex_spw_polarization_array`
             attribute to define the polarization per spectral window. Default is True.
+        swarm_only : bool
+            By default, only SMA SWARM data is loaded. If set to false, this will also
+            enable loading of older ASIC data.
         compass_soln : str
             Optional argument, specifying the path of COMPASS-derived flagging and
             bandpass gains solutions, which are applied prior to any potential spectral