Add GUA to geomagio/Metadata.py

GUA is transitioning to an ObsRIO data logger, which requires a metadata entry in Metadata.py. We do not know actual calibration values for the GUA Narod mag, and cannot retrieve them currently due to ongoing communication issues, so we'll use Narod default calibration parameters.

This commit applies strictly to GUA. Additional commits are forthcoming that relate to the test FGE+ObsRIO system that will also be deployed soon.

geomagio/Metadata.py

@@ -321,6 +321,61 @@ _INSTRUMENT_METADATA = [
             },
         },
     },
+    {
+        "network": "NT",
+        "station": "GUA",
+        "start_time": None,
+        "end_time": None,
+        "instrument": {
+            "type": "Narod",
+            "channels": {
+                "U": [
+                    {"channel": "U_Volt", "offset": 0, "scale": 100},
+                    {"channel": "U_Bin", "offset": 0, "scale": 500},
+                ],
+                "V": [
+                    {"channel": "V_Volt", "offset": 0, "scale": 100},
+                    {"channel": "V_Bin", "offset": 0, "scale": 500},
+                ],
+                "W": [
+                    {"channel": "W_Volt", "offset": 0, "scale": 100},
+                    {"channel": "W_Bin", "offset": 0, "scale": 500},
+                ],
+            },
+        },
+    },
+    {
+        "network": "NT",
+        "station": "GUT",
+        "start_time": None,
+        "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": 320.0}],
+                "V": [{"channel": "V_Volt", "offset": 0, "scale": 320.0}],
+                "W": [{"channel": "W_Volt", "offset": 0, "scale": 320.0}],
+            },
+            ## this info should get updated when available
+            # "electronics": {
+            #     "serial": "E0542",
+            #     # these scale values are used to convert voltage
+            #     "x-scale": 313.2,  # V/nT
+            #     "y-scale": 312.3,  # V/nT
+            #     "z-scale": 312.0,  # V/nT
+            #     "temperature-scale": 0.01,  # V/K
+            # },
+            # "sensor": {
+            #     "serial": "S0419",
+            #     # these constants combine with instrument setting for offset
+            #     "x-constant": 36958,  # nT/mA
+            #     "y-constant": 36849,  # nT/mA
+            #     "z-constant": 36811,  # nT/mA
+            # },
+        },
+    },
     {
         "network": "NT",
         "station": "HON",
@@ -344,6 +399,38 @@ _INSTRUMENT_METADATA = [
             },
         },
     },
+    {
+        "network": "NT",
+        "station": "HOT",
+        "start_time": None,
+        "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": 320.0}],
+                "V": [{"channel": "V_Volt", "offset": 0, "scale": 320.0}],
+                "W": [{"channel": "W_Volt", "offset": 0, "scale": 320.0}],
+            },
+            ## this info should get updated when available
+            # "electronics": {
+            #     "serial": "E0542",
+            #     # these scale values are used to convert voltage
+            #     "x-scale": 313.2,  # V/nT
+            #     "y-scale": 312.3,  # V/nT
+            #     "z-scale": 312.0,  # V/nT
+            #     "temperature-scale": 0.01,  # V/K
+            # },
+            # "sensor": {
+            #     "serial": "S0419",
+            #     # these constants combine with instrument setting for offset
+            #     "x-constant": 36958,  # nT/mA
+            #     "y-constant": 36849,  # nT/mA
+            #     "z-constant": 36811,  # nT/mA
+            # },
+        },
+    },
     {
         "network": "NT",
         "station": "NEW",