diff --git a/hydrocronapi/controllers/timeseries.py b/hydrocronapi/controllers/timeseries.py
index 2a39ebe..63f10aa 100644
--- a/hydrocronapi/controllers/timeseries.py
+++ b/hydrocronapi/controllers/timeseries.py
@@ -90,6 +90,7 @@ def format_json(results: Generator, feature_id, elapsed_time):
         i = 0
 
         for res in results:
+            # feature_id
             if res['feature_id'] == feature_id and res['feature_time'] != '-999999999999':  # and (res['width'] != '-999999999999')):
                 feature = {'properties': {}, 'geometry': {}, 'type': "Feature"}
                 feature['geometry']['coordinates'] = []