diff --git a/pbp/meta_gen/gen_iclisten.py b/pbp/meta_gen/gen_iclisten.py
index d7dd50a..ddacae2 100644
--- a/pbp/meta_gen/gen_iclisten.py
+++ b/pbp/meta_gen/gen_iclisten.py
@@ -180,11 +180,16 @@ def run(self):
             except Exception as ex:
                 self.log.exception(str(ex))
 
+        # plot the daily coverage only on files that are greater than the start date
+        # this os tp avoid plotting any coverage on files only included for overlap
         plot_file = plot_daily_coverage(
-            InstrumentType.ICLISTEN, self.df, self.json_base_dir, self.start, self.end
+            InstrumentType.ICLISTEN,
+            self.df[self.df["start"] >= self.start],
+            self.json_base_dir,
+            self.start,
+            self.end
         )
-        self.log.info(f"Coverage plot saved to: {plot_file}")
-
+        self.log.info(f"Coverage plot saved to {plot_file}")
 
 if __name__ == "__main__":
     from pbp.logging_helper import create_logger
diff --git a/pbp/meta_gen/gen_nrs.py b/pbp/meta_gen/gen_nrs.py
index 367dd61..cc89c25 100644
--- a/pbp/meta_gen/gen_nrs.py
+++ b/pbp/meta_gen/gen_nrs.py
@@ -155,9 +155,14 @@ def run(self):
             except Exception as ex:
                 self.log.exception(str(ex))
 
-        # plot the daily coverage
+        # plot the daily coverage only on files that are greater than the start date
+        # this os tp avoid plotting any coverage on files only included for overlap
         plot_file = plot_daily_coverage(
-            InstrumentType.NRS, self.df, self.json_base_dir, self.start, self.end
+            InstrumentType.NRS,
+            self.df[self.df["start"] >= self.start],
+            self.json_base_dir,
+            self.start,
+            self.end
         )
         self.log.info(f"Coverage plot saved to {plot_file}")
 
diff --git a/pbp/meta_gen/gen_soundtrap.py b/pbp/meta_gen/gen_soundtrap.py
index afaf95a..d1b4544 100644
--- a/pbp/meta_gen/gen_soundtrap.py
+++ b/pbp/meta_gen/gen_soundtrap.py
@@ -206,7 +206,7 @@ def run(self):
             # plot the daily coverage
             plot_file = plot_daily_coverage(
                 InstrumentType.SOUNDTRAP,
-                self.df,
+                self.df[self.df["start"] >= self.start],
                 self.json_base_dir,
                 self.start,
                 self.end,