diff --git a/Inst_eddies/inst_eddies_in.py b/Inst_eddies/inst_eddies_in.py
index a0a2699767e6dc3a948898c1f25a68408e29b393..9172cfe7f2e1f460137413ebcf8b980150f1927c 100755
--- a/Inst_eddies/inst_eddies_in.py
+++ b/Inst_eddies/inst_eddies_in.py
@@ -63,7 +63,7 @@ for orient in ["cyclo", "anti"]:
 
 perf_report = open("perf_report.csv", "w", newline='')
 writer = csv.writer(perf_report, lineterminator = "\n")
-writer.writerow(["date", "elapsed NCO", "elapsed Fortran", "elapsed cat"])
+writer.writerow(["date", "elapsed NCO", "elapsed Fortran"])
         
 while True:
     print("inst_eddies.py: Date:", my_date)
@@ -96,16 +96,13 @@ while True:
         print("inst_eddies.py: Missing file:", nc_file)
         elapsed_NCO, elapsed_Fortran = - 1, - 1
 
-    my_pc = time.perf_counter()
-    
     for orient in ["cyclo", "anti"]:
         with open(f"SHPC_{orient}/ishape_last.txt", "a") as ishape_last, \
              shapefile.Reader(f"SHPC_{orient}/extremum") as shpr:
             n_shapes = len(shpr)
             ishape_last.write(str(n_shapes - 1) + "\n")
 
-    elapsed_cat = time.perf_counter() - my_pc
-    writer.writerow([my_date, elapsed_NCO, elapsed_Fortran, elapsed_cat])
+    writer.writerow([my_date, elapsed_NCO, elapsed_Fortran])
     my_date += datetime.timedelta(1)
     if my_date > last_date: break
     basename = my_date.strftime(args.template)