diff --git a/geomagio/Metadata.py b/geomagio/Metadata.py
index 3c73200418574c59c53e459d8376ed5a7ecc7cfc..5cb5f74211004ae16c370fd1b74386ee3a680ef2 100644
--- a/geomagio/Metadata.py
+++ b/geomagio/Metadata.py
@@ -404,25 +404,25 @@ _INSTRUMENT_METADATA = [
     {
         "network": "NT",
         "station": "HOT",
-        "start_time": None,
+        "start_time": "2022-07-14T16:07:30.000Z",
         "end_time": None,
         "instrument": {
             "type": "FGE",
             "channels": {
                 # each channel maps to a list of components to calculate nT
                 # TODO: calculate these lists based on "FGE" type
-                "U": [{"channel": "U_Volt", "offset": 0, "scale": 971.8}],
-                "V": [{"channel": "V_Volt", "offset": 0, "scale": 970.6}],
-                "W": [{"channel": "W_Volt", "offset": 0, "scale": 960.2}],
+                "U": [{"channel": "U_Volt", "offset": 27123, "scale": 315.4}],
+                "V": [{"channel": "V_Volt", "offset": 0, "scale": 315.0}],
+                "W": [{"channel": "W_Volt", "offset": 21158, "scale": 311.7}],
             },
             # this info should get updated when available
             "electronics": {
                 "serial": "E558",
                 # these scale values are used to convert voltage
                 # these are calculated using Ohm's law, given scaling resistor value, and given nT/mA values.
-                "x-scale": 971.8,  # nT/V
-                "y-scale": 970.6,  # nT/V
-                "z-scale": 960.2,  # nT/V
+                "x-scale": 315.4,  # nT/V
+                "y-scale": 315.0,  # nT/V
+                "z-scale": 311.7,  # nT/V
                 "temperature-scale": 0.01,  # V/K
             },
             "sensor": {
@@ -613,7 +613,7 @@ _INSTRUMENT_METADATA = [
             },
         },
     },
-    ## Leaving this old object in comments in case we want to save it in the actual database as historical data
+    ## Leaving these old objects in comments in case we want to save it in the actual database as historical data
     # {
     #     "network": "NT",
     #     "station": "TUC",
@@ -637,4 +637,37 @@ _INSTRUMENT_METADATA = [
     #         },
     #     },
     # },
+    #     {
+    #     "network": "NT",
+    #     "station": "HOT",
+    #     "start_time": None,
+    #     "end_time": "2022-07-14T16:07:30.000Z",
+    #     "instrument": {
+    #         "type": "FGE",
+    #         "channels": {
+    #             # each channel maps to a list of components to calculate nT
+    #             # TODO: calculate these lists based on "FGE" type
+    #             "U": [{"channel": "U_Volt", "offset": 0, "scale": 971.8}],
+    #             "V": [{"channel": "V_Volt", "offset": 0, "scale": 970.6}],
+    #             "W": [{"channel": "W_Volt", "offset": 0, "scale": 960.2}],
+    #         },
+    #         # this info should get updated when available
+    #         "electronics": {
+    #             "serial": "E558",
+    #             # these scale values are used to convert voltage
+    #             # these are calculated using Ohm's law, given scaling resistor value, and given nT/mA values.
+    #             "x-scale": 971.8,  # nT/V
+    #             "y-scale": 970.6,  # nT/V
+    #             "z-scale": 960.2,  # nT/V
+    #             "temperature-scale": 0.01,  # V/K
+    #         },
+    #         "sensor": {
+    #             "serial": "S0428",
+    #             # these constants combine with instrument setting for offset
+    #             "x-constant": 37220,  # nT/mA
+    #             "y-constant": 37175,  # nT/mA
+    #             "z-constant": 36775,  # nT/mA
+    #         },
+    #     },
+    # },
 ]