diff --git a/predict_updater/lambda_function.py b/predict_updater/lambda_function.py
index 042d955..5923a74 100644
--- a/predict_updater/lambda_function.py
+++ b/predict_updater/lambda_function.py
@@ -306,6 +306,54 @@ def get_launch_estimate(conn, timestamp, latitude, longitude, altitude, ascent_r
     else:
         return None
 
+# return a dict key'd by serial with reverse prediction data
+def get_reverse_predictions():
+    path = "reverse-prediction-*/_search"
+    payload = {
+        "size": 1000,
+        "sort": [
+            {
+                "datetime": {
+                    "order": "asc",
+                    "unmapped_type": "boolean"
+                }
+            }
+        ],
+        "query": {
+            "bool": {
+            "filter": [
+                    {
+                        "range": {
+                            "datetime": {
+                            "gte": "now-1d",
+                            "lte": "now",
+                            "format": "strict_date_optional_time"
+                            }
+                        }
+                    }
+                ]
+            }
+        }
+    }
+    logging.debug("Start ES Request")
+    results = es_request(json.dumps(payload), path, "POST")
+    logging.debug("Finished ES Request")
+    return { x['_source']['serial'] : x['_source'] for x in results['hits']['hits']}
+
+def bulk_upload_es(index_prefix,payloads):
+    body=""
+    for payload in payloads:
+        body += "{\"index\":{}}\n" + json.dumps(payload) + "\n"
+    body += "\n"
+    date_prefix = datetime.now().strftime("%Y-%m")
+    result = es_request(body, f"{index_prefix}-{date_prefix}/_doc/_bulk", "POST")
+
+    if 'errors' in result and result['errors'] == True:
+        error_types = [x['index']['error']['type'] for x in result['items'] if 'error' in x['index']] # get all the error types
+        error_types = [a for a in error_types if a != 'mapper_parsing_exception'] # filter out mapper failures since they will never succeed
+        if error_types:
+            print(result)
+            raise RuntimeError
 
 def predict(event, context):
     path = "telm-*/_search"
@@ -553,21 +601,7 @@ def predict(event, context):
                 }
             )
 
-    
-    # ES bulk update
-    body=""
-    for payload in output:
-        body += "{\"index\":{}}\n" + json.dumps(payload) + "\n"
-    body += "\n"
-    index = datetime.now().strftime("%Y-%m")
-    result = es_request(body, f"predictions-{index}/_doc/_bulk", "POST")
-    if 'errors' in result and result['errors'] == True:
-        error_types = [x['index']['error']['type'] for x in result['items'] if 'error' in x['index']] # get all the error types
-        error_types = [a for a in error_types if a != 'mapper_parsing_exception'] # filter out mapper failures since they will never succeed
-        if error_types:
-            print(event)
-            print(result)
-            raise RuntimeError
+    bulk_upload_es("predictions", output)
     
     logging.debug("Finished")
     return
@@ -615,8 +649,22 @@ if __name__ == "__main__":
     #     print(f"{_serial['serial']}: {len(_serial['data'])}")
 
 
-    print(predict(
-          {},{}
-        ))
-    
+    # print(predict(
+    #       {},{}
+    #     ))
+    bulk_upload_es("reverse-prediction",[{
+          "datetime" : "2021-10-04",
+          "data" : { },
+          "serial" : "R12341234",
+          "station" : "-2",
+          "subtype" : "RS41-SGM",
+          "ascent_rate" : "5",
+          "alt" : 1000,
+          "position" : [
+            1,
+            2
+          ],
+          "type" : "RS41"
+        }]
+    )