diff --git a/dap/algos/peakfind.py b/dap/algos/peakfind.py
index 82ea29c..0ed3932 100644
--- a/dap/algos/peakfind.py
+++ b/dap/algos/peakfind.py
@@ -13,8 +13,9 @@ def calc_peakfinder_analysis(results, data, pixel_mask_pf):
         if k not in results:
             return
 
-    x_beam = results["beam_center_x"] - 0.5 # to coordinates where position of first pixel/point is 0.5, 0.5
-    y_beam = results["beam_center_y"] - 0.5 # to coordinates where position of first pixel/point is 0.5, 0.5
+    # to coordinates where position of first pixel/point is 0.5, 0.5
+    x_beam = results["beam_center_x"] - 0.5
+    y_beam = results["beam_center_y"] - 0.5
 
     hitfinder_min_snr = results["hitfinder_min_snr"]
     hitfinder_min_pix_count = int(results["hitfinder_min_pix_count"])
@@ -47,9 +48,11 @@ def calc_peakfinder_analysis(results, data, pixel_mask_pf):
 
     number_of_spots = len(peak_list_x)
     results["number_of_spots"] = number_of_spots
+
+    # to coordinates where position of first pixel/point is 1, 1
     results["spot_x"] = [x + 0.5 for x in peak_list_x]
     results["spot_y"] = [y + 0.5 for y in peak_list_y]
-    results["spot_intensity"] = copy(peak_list_value)
+    results["spot_intensity"] = copy(peak_list_value) #TODO: why is this copy needed?
 
     npeaks_threshold_hit = results.get("npeaks_threshold_hit", 15)