Shorten PyReduce FITS header keywords longer than 8 characters

pyreduce/clipnflip.py

@@ -135,7 +135,7 @@ def clipnflip(
     transpose = (
         transpose
         if transpose is not None
-        else header.get("e_transpose", (orientation % 8) >= 4)
+        else header.get("e_transp", header.get("e_transpose", (orientation % 8) >= 4))
     )
     if transpose:
         timage = np.transpose(timage, axes=(-1, -2))

pyreduce/combine_frames.py

@@ -352,7 +352,7 @@ def combine_frames(
         # orient 0, 2, 5, 7: orders are horizontal
         # orient 1, 3, 4, 6: orders are vertical
         orientation = head.get("e_orient", 0)
-        transpose = head.get("e_transpose", False)
+        transpose = head.get('e_transp', head.get('e_transpose', False))
         orientation = orientation % 8
         # check if non-linearity correction
         linear = head.get("e_linear", True)

pyreduce/instruments/common.py

@@ -265,9 +265,9 @@ def add_header_info(self, header, mode, **kwargs):
         info = self.info
         get = getter(header, info, mode)
 
-        header["e_instrument"] = get("instrument", self.__class__.__name__)
-        header["e_telescope"] = get("telescope", "")
-        header["e_exptime"] = get("exposure_time", 0)
+        header["e_instru"] = get("instrument", self.__class__.__name__)
+        header["e_telesc"] = get("telescope", "")
+        header["e_exptim"] = get("exposure_time", 0)
 
         jd = get("date")
         if jd is not None:
@@ -277,7 +277,7 @@ def add_header_info(self, header, mode, **kwargs):
         header["e_orient"] = get("orientation", 0)
         # As per IDL rotate if orient is 4 or larger and transpose is undefined
         # the image is transposed
-        header["e_transpose"] = get("transpose", (header["e_orient"] % 8 >= 4))
+        header["e_transp"] = get("transpose", (header["e_orient"] % 8 >= 4))
 
         naxis_x = get("naxis_x", 0)
         naxis_y = get("naxis_y", 0)

pyreduce/instruments/mcdonald.py

@@ -43,7 +43,7 @@ def add_header_info(self, header, mode, **kwargs):
         header["e_orient"] = get("orientation", 0)
         # As per IDL rotate if orient is 4 or larger and transpose is undefined
         # the image is transposed
-        header["e_transpose"] = get("transpose", (header["e_orient"] % 8 >= 4))
+        header["e_transp"] = get("transpose", (header["e_orient"] % 8 >= 4))
 
         trimsec = get("trimsec")
 

pyreduce/instruments/nte.py

@@ -25,7 +25,7 @@ def add_header_info(self, header, mode, **kwargs):
 
         header["e_ra"] /= 15
         if header["e_jd"] is not None:
-            header["e_jd"] += header["e_exptime"] / (7200 * 24) + 0.5
+            header["e_jd"] += header["e_exptim"] / (7200 * 24) + 0.5
 
         return header
 

pyreduce/instruments/uves.py

@@ -25,7 +25,7 @@ def add_header_info(self, header, mode, **kwargs):
 
         header["e_ra"] /= 15
         if header["e_jd"] is not None:
-            header["e_jd"] += header["e_exptime"] / (7200 * 24) + 0.5
+            header["e_jd"] += header["e_exptim"] / (7200 * 24) + 0.5
 
         return header
 

pyreduce/instruments/xshooter.py

@@ -24,12 +24,12 @@ def add_header_info(self, header, mode, **kwargs):
         header = super().add_header_info(header, mode)
 
         header["e_backg"] = (
-            header["e_readn"] + header["e_exptime"] * header["e_drk"] / 3600
+            header["e_readn"] + header["e_exptim"] * header["e_drk"] / 3600
         )
 
         header["e_ra"] /= 15
         if header["e_jd"] is not None:
-            header["e_jd"] += header["e_exptime"] / 2 / 3600 / 24 + 0.5
+            header["e_jd"] += header["e_exptim"] / 2 / 3600 / 24 + 0.5
 
         return header
 

test/test_clipnflip.py

@@ -22,7 +22,7 @@ def header(image):
     header["e_xlo"], header["e_xhi"] = 0, image.shape[1]
     header["e_ylo"], header["e_yhi"] = 0, image.shape[0]
     header["e_orient"] = 0
-    header["e_transpose"] = False
+    header["e_transp"] = False
     return header
 
 

test/test_instruments.py

@@ -47,7 +47,7 @@ def test_get_instrument_info(supported_instrument):
 
 def test_modeinfo(supported_instrument, supported_modes):
     # Standard FITS header keywords
-    required_keywords = ["e_instrument", "e_telescope", "e_exptime", "e_jd"]
+    required_keywords = ["e_instru", "e_telesc", "e_exptim", "e_jd"]
     # PyReduce keywords
     required_keywords += [
         "e_xlo",