diff --git a/docs/algorithms/Adjusted_usage.md b/docs/algorithms/Adjusted_usage.md
index 7388add068a673800182bfe890fd687fa9612a89..b3d9db952d05dd4fce24e6b05be167736bdcaddd 100644
--- a/docs/algorithms/Adjusted_usage.md
+++ b/docs/algorithms/Adjusted_usage.md
@@ -46,7 +46,7 @@ This example uses an AdjustedMatrix object to produce X, Y, Z and F channels
 from raw H, E, Z and F channels using the EDGE channel naming
 convention.  Absolutes were used to compute the transform matrix and pier correction
 contained in the object.
-    
+
 ```python
 from geomagio.algorithm import AdjustedAlgorithm
 from geomagio.adjusted.AdjustedMatrix import AdjustedMatrix
@@ -55,7 +55,7 @@ from geomagio.iaga2002 import IAGA2002Factory
 with open("etc/adjusted/BOU201601vmin.min") as f:
         raw = IAGA2002Factory().parse_string(f.read())
 
-a = adj(
+a = AdjustedAlgorithm(
         matrix=AdjustedMatrix(
             matrix=[
                 [
@@ -83,7 +83,7 @@ a = adj(
     )
 # definition can also use statefiles
 # a = adj(statefile="etc/adjusted/adjbou_state_.json")
-  
+
 result = adjusted.process(raw)
 ```
 
diff --git a/etc/residual/BOU20190702.json b/etc/residual/BOU20190702.json
new file mode 100644
index 0000000000000000000000000000000000000000..aeb0ecf2afa7693ffd450990eef07fff32785bb1
--- /dev/null
+++ b/etc/residual/BOU20190702.json
@@ -0,0 +1 @@
+[{"absolutes": [{"element": "D", "absolute": 8.4358, "baseline": 8.5850478, "starttime": "2019-07-02T16:20:46", "endtime": "2019-07-02T16:24:25", "shift": 0.0, "valid": true}, {"element": "H", "absolute": 20739.5579824, "baseline": -76.9417676, "starttime": "2019-07-02T16:27:13", "endtime": "2019-07-02T16:31:40", "shift": 0.0, "valid": false}, {"element": "Z", "absolute": 47504.8688095, "baseline": 574.6068095, "starttime": "2019-07-02T16:27:13", "endtime": "2019-07-02T16:31:40", "shift": 0.0, "valid": false}], "azimuth": 199.1383, "hemisphere": 1, "measurements": [{"measurement_type": "SecondMarkDown", "angle": 190.385, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "FirstMarkUp", "angle": 10.386666666667, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "SecondMarkUp", "angle": 10.385, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "FirstMarkDown", "angle": 190.38666666667, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "WestDown", "angle": 269.73833333333, "residual": 0.0, "time": "2019-07-02T16:20:46", "h": 20819.185, "e": -53.891, "z": 46931.842, "f": 51859.3}, {"measurement_type": "EastDown", "angle": 89.601666666667, "residual": 0.0, "time": "2019-07-02T16:22:00", "h": 20818.702, "e": -54.311, "z": 46931.738, "f": 51859.0}, {"measurement_type": "WestUp", "angle": 89.63, "residual": 0.0, "time": "2019-07-02T16:22:49", "h": 20818.452, "e": -54.129, "z": 46931.399, "f": 51858.61}, {"measurement_type": "EastUp", "angle": 269.76333333333, "residual": 0.0, "time": "2019-07-02T16:24:25", "h": 20817.584, "e": -53.764, "z": 46931.192, "f": 51858.07}, {"measurement_type": "SouthDown", "angle": 246.38333333333, "residual": 0.0, "time": "2019-07-02T16:27:13", "h": 20817.561, "e": -53.482, "z": 46930.707, "f": 51857.58}, {"measurement_type": "NorthUp", "angle": 66.383333333333, "residual": 0.0, "time": "2019-07-02T16:27:56", "h": 20817.389, "e": -53.323, "z": 46930.486, "f": 51857.32}, {"measurement_type": "SouthUp", "angle": 113.55333333333, "residual": 0.0, "time": "2019-07-02T16:30:40", "h": 20815.75, "e": -53.589, "z": 46930.115, "f": 51856.33}, {"measurement_type": "NorthDown", "angle": 293.55333333333, "residual": 0.0, "time": "2019-07-02T16:31:40", "h": 20815.299, "e": -53.24, "z": 46929.74, "f": 51855.79}], "metadata": {"time": "2019-07-02T16:20:46Z", "reviewed": true, "electronics": "0110", "theodolite": "614379", "mark_name": "AZ", "mark_azimuth": 199.1383, "pier_name": "MainPCDCP", "pier_correction": -22, "observer": "Bennett Emmons", "reviewer": "Bill Worthington", "station": "BOU"}, "pier_correction": -22.0, "scale_value": null}, {"absolutes": [{"element": "D", "absolute": 8.4328833, "baseline": 8.5799061, "starttime": "2019-07-02T16:34:49", "endtime": "2019-07-02T16:38:20", "shift": 0.0, "valid": false}, {"element": "H", "absolute": 20738.2526264, "baseline": -75.7596236, "starttime": "2019-07-02T16:41:27", "endtime": "2019-07-02T16:45:14", "shift": 0.0, "valid": true}, {"element": "Z", "absolute": 47501.8788342, "baseline": 574.1223342, "starttime": "2019-07-02T16:41:27", "endtime": "2019-07-02T16:45:14", "shift": 0.0, "valid": true}], "azimuth": 199.1383, "hemisphere": 1, "measurements": [{"measurement_type": "SecondMarkUp", "angle": 10.386666666667, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "FirstMarkDown", "angle": 190.385, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "SecondMarkDown", "angle": 190.385, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "FirstMarkUp", "angle": 10.385, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "WestDown", "angle": 269.735, "residual": 0.0, "time": "2019-07-02T16:34:49", "h": 20814.756, "e": -53.24, "z": 46929.196, "f": 51855.09}, {"measurement_type": "EastDown", "angle": 89.586666666667, "residual": 0.0, "time": "2019-07-02T16:35:41", "h": 20814.408, "e": -52.934, "z": 46928.999, "f": 51854.78}, {"measurement_type": "WestUp", "angle": 89.633333333333, "residual": 0.0, "time": "2019-07-02T16:37:04", "h": 20814.638, "e": -53.267, "z": 46928.75, "f": 51854.67}, {"measurement_type": "EastUp", "angle": 269.765, "residual": 0.0, "time": "2019-07-02T16:38:20", "h": 20814.82, "e": -53.419, "z": 46928.536, "f": 51854.49}, {"measurement_type": "SouthDown", "angle": 246.38333333333, "residual": 0.0, "time": "2019-07-02T16:41:27", "h": 20813.878, "e": -52.728, "z": 46928.011, "f": 51853.7}, {"measurement_type": "NorthUp", "angle": 66.383333333333, "residual": 0.0, "time": "2019-07-02T16:42:36", "h": 20814.146, "e": -52.795, "z": 46927.824, "f": 51853.62}, {"measurement_type": "SouthUp", "angle": 113.55333333333, "residual": 0.0, "time": "2019-07-02T16:44:00", "h": 20814.106, "e": -52.939, "z": 46927.665, "f": 51853.42}, {"measurement_type": "NorthDown", "angle": 293.55333333333, "residual": 0.0, "time": "2019-07-02T16:45:14", "h": 20813.919, "e": -52.993, "z": 46927.526, "f": 51853.23}], "metadata": {"time": "2019-07-02T16:20:46Z", "reviewed": true, "electronics": "0110", "theodolite": "614379", "mark_name": "AZ", "mark_azimuth": 199.1383, "pier_name": "MainPCDCP", "pier_correction": -22, "observer": "Bennett Emmons", "reviewer": "Bill Worthington", "station": "BOU"}, "pier_correction": -22.0, "scale_value": null}, {"absolutes": [{"element": "D", "absolute": 8.4358, "baseline": 8.5862435, "starttime": "2019-07-02T16:47:19", "endtime": "2019-07-02T16:50:14", "shift": 0.0, "valid": true}, {"element": "H", "absolute": 20737.7244824, "baseline": -75.5807676, "starttime": "2019-07-02T16:51:54", "endtime": "2019-07-02T16:54:25", "shift": 0.0, "valid": true}, {"element": "Z", "absolute": 47500.6690971, "baseline": 574.0740971, "starttime": "2019-07-02T16:51:54", "endtime": "2019-07-02T16:54:25", "shift": 0.0, "valid": true}], "azimuth": 199.1383, "hemisphere": 1, "measurements": [{"measurement_type": "FirstMarkDown", "angle": 190.385, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "SecondMarkDown", "angle": 190.385, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "FirstMarkUp", "angle": 10.385, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "SecondMarkUp", "angle": 10.385, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "WestDown", "angle": 269.73166666667, "residual": 0.0, "time": "2019-07-02T16:47:19", "h": 20814.146, "e": -53.594, "z": 46927.201, "f": 51853.04}, {"measurement_type": "EastDown", "angle": 89.6, "residual": 0.0, "time": "2019-07-02T16:48:18", "h": 20813.935, "e": -54.139, "z": 46927.227, "f": 51852.98}, {"measurement_type": "WestUp", "angle": 89.638333333333, "residual": 0.0, "time": "2019-07-02T16:48:58", "h": 20813.988, "e": -54.762, "z": 46927.164, "f": 51852.91}, {"measurement_type": "EastUp", "angle": 269.76, "residual": 0.0, "time": "2019-07-02T16:50:14", "h": 20813.834, "e": -55.312, "z": 46926.943, "f": 51852.66}, {"measurement_type": "SouthDown", "angle": 246.385, "residual": 0.0, "time": "2019-07-02T16:51:54", "h": 20813.621, "e": -56.089, "z": 46926.728, "f": 51852.42}, {"measurement_type": "NorthUp", "angle": 66.385, "residual": 0.0, "time": "2019-07-02T16:52:41", "h": 20813.433, "e": -56.561, "z": 46926.667, "f": 51852.27}, {"measurement_type": "SouthUp", "angle": 113.55333333333, "residual": 0.0, "time": "2019-07-02T16:53:41", "h": 20813.181, "e": -56.834, "z": 46926.494, "f": 51852.06}, {"measurement_type": "NorthDown", "angle": 293.55666666667, "residual": 0.0, "time": "2019-07-02T16:54:25", "h": 20812.986, "e": -57.102, "z": 46926.491, "f": 51851.94}], "metadata": {"time": "2019-07-02T16:20:46Z", "reviewed": true, "electronics": "0110", "theodolite": "614379", "mark_name": "AZ", "mark_azimuth": 199.1383, "pier_name": "MainPCDCP", "pier_correction": -22, "observer": "Bennett Emmons", "reviewer": "Bill Worthington", "station": "BOU"}, "pier_correction": -22.0, "scale_value": null}, {"absolutes": [{"element": "D", "absolute": 8.41205, "baseline": 8.5852865, "starttime": "2019-07-02T16:59:37", "endtime": "2019-07-02T17:03:13", "shift": 0.0, "valid": true}, {"element": "H", "absolute": 20739.1282195, "baseline": -75.6935305, "starttime": "2019-07-02T17:05:30", "endtime": "2019-07-02T17:08:27", "shift": 0.0, "valid": true}, {"element": "Z", "absolute": 47500.1162461, "baseline": 574.1532461, "starttime": "2019-07-02T17:05:30", "endtime": "2019-07-02T17:08:27", "shift": 0.0, "valid": true}], "azimuth": 199.1383, "hemisphere": 1, "measurements": [{"measurement_type": "FirstMarkDown", "angle": 190.38666666667, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "SecondMarkDown", "angle": 190.385, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "FirstMarkUp", "angle": 10.385, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "SecondMarkUp", "angle": 10.385, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "WestDown", "angle": 269.70166666667, "residual": 0.0, "time": "2019-07-02T16:59:37", "h": 20813.215, "e": -61.617, "z": 46926.215, "f": 51851.8}, {"measurement_type": "EastDown", "angle": 89.583333333333, "residual": 0.0, "time": "2019-07-02T17:00:52", "h": 20813.607, "e": -62.62, "z": 46926.101, "f": 51851.87}, {"measurement_type": "WestUp", "angle": 89.616666666667, "residual": 0.0, "time": "2019-07-02T17:02:19", "h": 20813.554, "e": -63.094, "z": 46926.042, "f": 51851.77}, {"measurement_type": "EastUp", "angle": 269.735, "residual": 0.0, "time": "2019-07-02T17:03:13", "h": 20813.67, "e": -63.492, "z": 46926.022, "f": 51851.8}, {"measurement_type": "SouthDown", "angle": 246.385, "residual": 0.0, "time": "2019-07-02T17:05:30", "h": 20814.256, "e": -64.44, "z": 46926.03, "f": 51852.05}, {"measurement_type": "NorthUp", "angle": 66.385, "residual": 0.0, "time": "2019-07-02T17:06:19", "h": 20814.45, "e": -64.926, "z": 46926.012, "f": 51852.11}, {"measurement_type": "SouthUp", "angle": 113.55833333333, "residual": 0.0, "time": "2019-07-02T17:07:27", "h": 20815.241, "e": -65.458, "z": 46925.899, "f": 51852.36}, {"measurement_type": "NorthDown", "angle": 293.55833333333, "residual": 0.0, "time": "2019-07-02T17:08:27", "h": 20815.34, "e": -65.821, "z": 46925.911, "f": 51852.39}], "metadata": {"time": "2019-07-02T16:20:46Z", "reviewed": true, "electronics": "0110", "theodolite": "614379", "mark_name": "AZ", "mark_azimuth": 199.1383, "pier_name": "MainPCDCP", "pier_correction": -22, "observer": "Bennett Emmons", "reviewer": "Bill Worthington", "station": "BOU"}, "pier_correction": -22.0, "scale_value": null}]
\ No newline at end of file
diff --git a/etc/residual/BOU20191001.json b/etc/residual/BOU20191001.json
new file mode 100644
index 0000000000000000000000000000000000000000..6db1a5298bdd3177e4501a684068d47c2498b9d9
--- /dev/null
+++ b/etc/residual/BOU20191001.json
@@ -0,0 +1 @@
+[{"absolutes": [{"element": "D", "absolute": 8.3894111, "baseline": 8.5879326, "starttime": "2019-10-02T13:44:55", "endtime": "2019-10-02T13:49:50", "shift": 0.0, "valid": true}, {"element": "H", "absolute": 20751.3862752, "baseline": -76.8952248, "starttime": "2019-10-02T13:57:00", "endtime": "2019-10-02T14:00:37", "shift": 0.0, "valid": true}, {"element": "Z", "absolute": 47483.7701945, "baseline": 575.8616945, "starttime": "2019-10-02T13:57:00", "endtime": "2019-10-02T14:00:37", "shift": 0.0, "valid": true}], "azimuth": 199.1383, "hemisphere": 1, "measurements": [{"measurement_type": "SecondMarkDown", "angle": 191.45111111111, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "FirstMarkUp", "angle": 11.448888888889, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "SecondMarkUp", "angle": 11.448333333333, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "FirstMarkDown", "angle": 191.44888888889, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "WestDown", "angle": 270.60972222222, "residual": 0.0, "time": "2019-10-02T13:44:55", "h": 20831.253, "e": -73.216, "z": 46908.583, "f": 51843.98}, {"measurement_type": "EastDown", "angle": 90.553611111111, "residual": 0.0, "time": "2019-10-02T13:47:09", "h": 20830.425, "e": -71.349, "z": 46908.471, "f": 51843.51}, {"measurement_type": "WestUp", "angle": 90.784444444444, "residual": 0.0, "time": "2019-10-02T13:48:39", "h": 20830.387, "e": -71.155, "z": 46908.635, "f": 51843.68}, {"measurement_type": "EastUp", "angle": 270.85388888889, "residual": 0.0, "time": "2019-10-02T13:49:50", "h": 20830.563, "e": -71.882, "z": 46908.38, "f": 51843.54}, {"measurement_type": "SouthDown", "angle": 246.37972222222, "residual": 0.0, "time": "2019-10-02T13:57:00", "h": 20829.257, "e": -68.815, "z": 46907.921, "f": 51842.56}, {"measurement_type": "NorthUp", "angle": 66.378333333333, "residual": 0.0, "time": "2019-10-02T13:58:16", "h": 20828.642, "e": -67.645, "z": 46907.81, "f": 51842.23}, {"measurement_type": "SouthUp", "angle": 113.58944444444, "residual": 0.0, "time": "2019-10-02T13:59:36", "h": 20827.673, "e": -66.901, "z": 46908.178, "f": 51842.15}, {"measurement_type": "NorthDown", "angle": 293.59388888889, "residual": 0.0, "time": "2019-10-02T14:00:37", "h": 20827.554, "e": -66.317, "z": 46907.725, "f": 51841.68}], "metadata": {"time": "2019-10-02T13:44:55Z", "reviewed": true, "electronics": "0110", "theodolite": "109648", "mark_name": "AZ", "mark_azimuth": 199.1383, "pier_name": "MainPCDCP", "pier_correction": -22, "observer": "Mark Nelson", "reviewer": "Bill Worthington", "station": "BOU"}, "pier_correction": -22.0, "scale_value": null}, {"absolutes": [{"element": "D", "absolute": 8.4167722, "baseline": 8.5941292, "starttime": "2019-10-02T14:03:39", "endtime": "2019-10-02T14:07:38", "shift": 0.0, "valid": true}, {"element": "H", "absolute": 20743.2614094, "baseline": -76.6220906, "starttime": "2019-10-02T14:13:10", "endtime": "2019-10-02T14:16:32", "shift": 0.0, "valid": true}, {"element": "Z", "absolute": 47482.2730636, "baseline": 575.7863136, "starttime": "2019-10-02T14:13:10", "endtime": "2019-10-02T14:16:32", "shift": 0.0, "valid": true}], "azimuth": 199.1383, "hemisphere": 1, "measurements": [{"measurement_type": "SecondMarkUp", "angle": 11.455833333333, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "FirstMarkDown", "angle": 191.45638888889, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "SecondMarkDown", "angle": 191.45694444444, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "FirstMarkUp", "angle": 11.455555555556, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "WestDown", 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\ No newline at end of file
diff --git a/etc/residual/BOU20200101.json b/etc/residual/BOU20200101.json
new file mode 100644
index 0000000000000000000000000000000000000000..89697e4f9b53fd1a60c0fc499fdfb1500c42d580
--- /dev/null
+++ b/etc/residual/BOU20200101.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/etc/residual/BOU20200422.json b/etc/residual/BOU20200422.json
new file mode 100644
index 0000000000000000000000000000000000000000..17c02fb56a26989edd5c6056d94ffced22b99d68
--- /dev/null
+++ b/etc/residual/BOU20200422.json
@@ -0,0 +1 @@
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{"measurement_type": "FirstMarkDown", "angle": 191.56805555556, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "WestDown", "angle": 270.59472222222, "residual": 0.0, "time": "2020-04-22T16:58:21", "h": 20787.821, "e": -107.791, "z": 46833.4, "f": 51761.21}, {"measurement_type": "EastDown", "angle": 90.578055555556, "residual": 0.0, "time": "2020-04-22T16:59:42", "h": 20787.828, "e": -108.208, "z": 46833.349, "f": 51761.22}, {"measurement_type": "WestUp", "angle": 90.837222222222, "residual": 0.0, "time": "2020-04-22T17:01:05", "h": 20787.92, "e": -108.66, "z": 46833.414, "f": 51761.27}, {"measurement_type": "EastUp", "angle": 270.85472222222, "residual": 0.0, "time": "2020-04-22T17:02:24", "h": 20787.914, "e": -108.624, "z": 46833.246, "f": 51761.17}, {"measurement_type": "SouthDown", "angle": 246.39194444444, "residual": 0.0, "time": "2020-04-22T17:06:24", "h": 20788.918, "e": -109.507, "z": 46833.406, "f": 51761.77}, {"measurement_type": "NorthUp", "angle": 66.391666666667, "residual": 0.0, "time": "2020-04-22T17:07:20", "h": 20788.93, "e": -109.323, "z": 46833.435, "f": 51761.69}, {"measurement_type": "SouthUp", "angle": 113.6, "residual": 0.0, "time": "2020-04-22T17:09:36", "h": 20788.716, "e": -109.682, "z": 46833.468, "f": 51761.67}, {"measurement_type": "NorthDown", "angle": 293.60305555556, "residual": 0.0, "time": "2020-04-22T17:10:19", "h": 20788.827, "e": -109.924, "z": 46833.397, "f": 51761.69}], "metadata": {"time": "2020-04-22T16:58:21Z", "reviewed": true, "electronics": "0110", "theodolite": "108449", "mark_name": "AZ", "mark_azimuth": 199.1383, "pier_name": "MainPCDCP", "pier_correction": -22, "observer": "John Spritzer", "reviewer": "Bill Worthington", "station": "BOU"}, "pier_correction": -22.0, "scale_value": null}, {"absolutes": [{"element": "D", "absolute": 8.2796889, "baseline": 8.5865885, "starttime": "2020-04-22T17:13:01", "endtime": "2020-04-22T17:16:27", "shift": 0.0, "valid": true}, {"element": "H", "absolute": 20720.412631, "baseline": -70.600369, "starttime": "2020-04-22T17:20:46", "endtime": "2020-04-22T17:24:16", "shift": 0.0, "valid": true}, {"element": "Z", "absolute": 47410.0768134, "baseline": 577.0655634, "starttime": "2020-04-22T17:20:46", "endtime": "2020-04-22T17:24:16", "shift": 0.0, "valid": true}], "azimuth": 199.1383, "hemisphere": 1, "measurements": [{"measurement_type": "SecondMarkUp", "angle": 11.565833333333, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "FirstMarkDown", "angle": 191.56777777778, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "SecondMarkDown", "angle": 191.56777777778, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "FirstMarkUp", "angle": 11.565277777778, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "WestDown", "angle": 270.58388888889, "residual": 0.0, "time": "2020-04-22T17:13:01", "h": 20789.331, "e": -110.782, "z": 46833.405, "f": 51761.86}, {"measurement_type": "EastDown", "angle": 90.568611111111, "residual": 0.0, "time": "2020-04-22T17:14:16", "h": 20789.409, "e": -110.917, "z": 46833.333, "f": 51761.83}, {"measurement_type": "WestUp", "angle": 90.828055555556, "residual": 0.0, "time": "2020-04-22T17:15:21", "h": 20789.489, "e": -111.064, "z": 46833.343, "f": 51761.9}, {"measurement_type": "EastUp", "angle": 270.85166666667, "residual": 0.0, "time": "2020-04-22T17:16:27", "h": 20789.68, "e": -111.185, "z": 46833.233, "f": 51761.86}, {"measurement_type": "SouthDown", "angle": 246.39027777778, "residual": 0.0, "time": "2020-04-22T17:20:46", "h": 20790.54, "e": -112.483, "z": 46833.095, "f": 51762.13}, {"measurement_type": "NorthUp", "angle": 66.389722222222, "residual": 0.0, "time": "2020-04-22T17:22:13", "h": 20791.241, "e": -112.957, "z": 46833.016, "f": 51762.31}, {"measurement_type": "SouthUp", "angle": 113.60361111111, "residual": 0.0, "time": "2020-04-22T17:23:16", "h": 20790.985, "e": -113.068, "z": 46832.981, "f": 51762.19}, {"measurement_type": "NorthDown", "angle": 293.60666666667, "residual": 0.0, "time": "2020-04-22T17:24:16", "h": 20791.286, "e": -113.117, "z": 46832.953, "f": 51762.27}], "metadata": {"time": "2020-04-22T16:58:21Z", "reviewed": true, "electronics": "0110", "theodolite": "108449", "mark_name": "AZ", "mark_azimuth": 199.1383, "pier_name": "MainPCDCP", "pier_correction": -22, "observer": "John Spritzer", "reviewer": "Bill Worthington", "station": "BOU"}, "pier_correction": -22.0, "scale_value": null}, {"absolutes": [{"element": "D", "absolute": 8.2700361, "baseline": 8.5860246, "starttime": "2020-04-22T17:26:53", "endtime": "2020-04-22T17:30:19", "shift": 0.0, "valid": true}, {"element": "H", "absolute": 20722.4714763, "baseline": -70.2677737, "starttime": "2020-04-22T17:34:20", "endtime": "2020-04-22T17:37:43", "shift": 0.0, "valid": true}, {"element": "Z", "absolute": 47409.4634293, "baseline": 576.9001793, "starttime": "2020-04-22T17:34:20", "endtime": "2020-04-22T17:37:43", "shift": 0.0, "valid": true}], "azimuth": 199.1383, "hemisphere": 1, "measurements": [{"measurement_type": "FirstMarkDown", "angle": 191.56805555556, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "SecondMarkDown", "angle": 191.56833333333, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "FirstMarkUp", "angle": 11.565277777778, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "SecondMarkUp", "angle": 11.565833333333, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "WestDown", "angle": 270.57666666667, "residual": 0.0, "time": "2020-04-22T17:26:53", "h": 20791.409, "e": -114.21, "z": 46832.93, "f": 51762.31}, {"measurement_type": "EastDown", "angle": 90.561666666667, "residual": 0.0, "time": "2020-04-22T17:27:57", "h": 20791.255, "e": -114.262, "z": 46832.86, "f": 51762.15}, {"measurement_type": "WestUp", "angle": 90.820833333333, "residual": 0.0, "time": "2020-04-22T17:29:03", "h": 20790.607, "e": -114.163, "z": 46832.832, "f": 51761.89}, {"measurement_type": "EastUp", "angle": 270.83527777778, "residual": 0.0, "time": "2020-04-22T17:30:19", "h": 20790.798, "e": -114.506, "z": 46832.57, "f": 51761.75}, {"measurement_type": "SouthDown", "angle": 246.38611111111, "residual": 0.0, "time": "2020-04-22T17:34:20", "h": 20793.23, "e": -115.927, "z": 46832.451, "f": 51762.5}, {"measurement_type": "NorthUp", "angle": 66.386944444444, "residual": 0.0, "time": "2020-04-22T17:34:59", "h": 20793.178, "e": -115.832, "z": 46832.436, "f": 51762.57}, {"measurement_type": "SouthUp", "angle": 113.60555555556, "residual": 0.0, "time": "2020-04-22T17:36:18", "h": 20792.705, "e": -115.434, "z": 46832.579, "f": 51762.53}, {"measurement_type": "NorthDown", "angle": 293.60722222222, "residual": 0.0, "time": "2020-04-22T17:37:43", "h": 20791.844, "e": -115.239, "z": 46832.787, "f": 51762.35}], "metadata": {"time": "2020-04-22T16:58:21Z", "reviewed": true, "electronics": "0110", "theodolite": "108449", "mark_name": "AZ", "mark_azimuth": 199.1383, "pier_name": "MainPCDCP", "pier_correction": -22, "observer": "John Spritzer", "reviewer": "Bill Worthington", "station": "BOU"}, "pier_correction": -22.0, "scale_value": null}, {"absolutes": [{"element": "D", "absolute": 8.2633694, "baseline": 8.5865679, "starttime": "2020-04-22T17:39:50", "endtime": "2020-04-22T17:43:07", "shift": 0.0, "valid": true}, {"element": "H", "absolute": 20722.5313831, "baseline": -70.6621169, "starttime": "2020-04-22T17:46:19", "endtime": "2020-04-22T17:49:39", "shift": 0.0, "valid": true}, {"element": "Z", "absolute": 47410.070229, "baseline": 577.129229, "starttime": "2020-04-22T17:46:19", "endtime": "2020-04-22T17:49:39", "shift": 0.0, "valid": true}], "azimuth": 199.1383, "hemisphere": 1, "measurements": [{"measurement_type": "FirstMarkDown", "angle": 191.56777777778, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "SecondMarkDown", "angle": 191.5675, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "FirstMarkUp", "angle": 11.565833333333, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "SecondMarkUp", "angle": 11.565277777778, "residual": 0.0, "time": null, "h": null, "e": null, "z": null, "f": null}, {"measurement_type": "WestDown", "angle": 270.56805555556, "residual": 0.0, "time": "2020-04-22T17:39:50", "h": 20791.975, "e": -116.134, "z": 46832.855, "f": 51762.39}, {"measurement_type": "EastDown", "angle": 90.555555555556, "residual": 0.0, "time": "2020-04-22T17:40:44", "h": 20791.849, "e": -116.444, "z": 46832.734, "f": 51762.37}, {"measurement_type": "WestUp", "angle": 90.809444444444, "residual": 0.0, "time": "2020-04-22T17:42:04", "h": 20792.026, "e": -117.444, "z": 46832.8, "f": 51762.47}, {"measurement_type": "EastUp", "angle": 270.83361111111, "residual": 0.0, "time": "2020-04-22T17:43:07", "h": 20792.017, "e": -117.551, "z": 46832.739, "f": 51762.4}, {"measurement_type": "SouthDown", "angle": 246.38888888889, "residual": 0.0, "time": "2020-04-22T17:46:19", "h": 20792.558, "e": -117.926, "z": 46832.81, "f": 51762.72}, {"measurement_type": "NorthUp", "angle": 66.388055555556, "residual": 0.0, "time": "2020-04-22T17:47:10", "h": 20793.064, "e": -118.251, "z": 46832.932, "f": 51762.94}, {"measurement_type": "SouthUp", "angle": 113.60694444444, "residual": 0.0, "time": "2020-04-22T17:48:34", "h": 20793.514, "e": -118.953, "z": 46832.973, "f": 51763.25}, {"measurement_type": "NorthDown", "angle": 293.60888888889, "residual": 0.0, "time": "2020-04-22T17:49:39", "h": 20793.638, "e": -119.445, "z": 46833.049, "f": 51763.36}], "metadata": {"time": "2020-04-22T16:58:21Z", "reviewed": true, "electronics": "0110", "theodolite": "108449", "mark_name": "AZ", "mark_azimuth": 199.1383, "pier_name": "MainPCDCP", "pier_correction": -22, "observer": "John Spritzer", "reviewer": "Bill Worthington", "station": "BOU"}, "pier_correction": -22.0, "scale_value": null}]
\ No newline at end of file
diff --git a/geomagio/adjusted/AdjustedMatrix.py b/geomagio/adjusted/AdjustedMatrix.py
index 4d163723659976615b707e91e765ecb7c5296671..d4c77ceccf1083442615ba3427102fe6c0316479 100644
--- a/geomagio/adjusted/AdjustedMatrix.py
+++ b/geomagio/adjusted/AdjustedMatrix.py
@@ -6,7 +6,7 @@ from typing import Any, List, Optional
 from ..residual.Reading import Reading, get_absolutes_xyz, get_ordinates
 from .. import ChannelConverter
 from .. import pydantic_utcdatetime
-from .Metric import Metric
+from .Metric import Metric, get_metric
 
 
 class AdjustedMatrix(BaseModel):
@@ -90,4 +90,9 @@ class AdjustedMatrix(BaseModel):
                     stddev=np.std(diff),
                 )
             )
+            metrics.append(
+                get_metric(
+                    element=elements[i], expected=expected[i], actual=predicted[i]
+                )
+            )
         return metrics
diff --git a/geomagio/adjusted/Affine.py b/geomagio/adjusted/Affine.py
index 1df35fca3d114160ca2c08e1e102d9385900c041..83e5aaa316e7d533a094afae5f27aec97bbfe49a 100644
--- a/geomagio/adjusted/Affine.py
+++ b/geomagio/adjusted/Affine.py
@@ -1,7 +1,7 @@
 from functools import reduce
 import numpy as np
 from obspy import UTCDateTime
-from pydantic import BaseModel
+from pydantic import BaseModel, Field
 from typing import List, Optional, Tuple
 
 from ..residual.Reading import (
@@ -27,7 +27,7 @@ class Affine(BaseModel):
     """
 
     observatory: str = None
-    starttime: UTCDateTime = UTCDateTime() - (86400 * 7)
+    starttime: UTCDateTime = Field(default_factory=lambda: UTCDateTime() - (86400 * 7))
     endtime: UTCDateTime = UTCDateTime()
     update_interval: Optional[int] = 86400 * 7
     transforms: List[Transform] = [
@@ -35,9 +35,6 @@ class Affine(BaseModel):
         TranslateOrigins(memory=(86400 * 10), acausal=True),
     ]
 
-    class Config:
-        arbitrary_types_allowed = True
-
     def calculate(
         self, readings: List[Reading], epochs: Optional[List[UTCDateTime]] = None
     ) -> List[AdjustedMatrix]:
@@ -121,7 +118,7 @@ class Affine(BaseModel):
             Ms.append(M)
 
         # compose affine transform matrices using reverse ordered matrices
-        M_composed = reduce(np.dot, np.flipud(Ms))
+        M_composed = reduce(np.dot, reversed(Ms))
         pier_correction = np.average(
             [reading.pier_correction for reading in readings], weights=weights
         )
diff --git a/geomagio/adjusted/Metric.py b/geomagio/adjusted/Metric.py
index 983cb538f5b2dd07fce1699fb5f8cf4dca1ac6cb..bb60398f2c5ce4f84083d89881df7b6dafd000dd 100644
--- a/geomagio/adjusted/Metric.py
+++ b/geomagio/adjusted/Metric.py
@@ -1,3 +1,6 @@
+from typing import List
+
+import numpy as np
 from pydantic import BaseModel
 
 
@@ -14,3 +17,8 @@ class Metric(BaseModel):
     element: str
     absmean: float = None
     stddev: float = None
+
+
+def get_metric(element: str, expected: List[float], actual: List[float]) -> Metric:
+    diff = np.array(expected) - np.array(actual)
+    return Metric(element=element, absmean=np.average(abs(diff)), stddev=np.std(diff))
diff --git a/geomagio/adjusted/transform/Transform.py b/geomagio/adjusted/transform/Transform.py
index b3b7a391ce306bf9f2d6b8530e01535d85e93531..0df271c9766491744fd55a429ee4c5c8ad7ae208 100644
--- a/geomagio/adjusted/transform/Transform.py
+++ b/geomagio/adjusted/transform/Transform.py
@@ -33,7 +33,8 @@ class Transform(BaseModel):
         absolutes: X, Y and Z absolutes(NOTE: absolutes must be rotated from original H, E and Z values)
         weights: time weights to apply during calculations of matrices
         """
-        return
+        # return identity matrix
+        return np.eye(4)
 
     def get_weights(self, readings: List[Reading], time: int = None) -> List[float]:
         """
diff --git a/geomagio/algorithm/AdjustedAlgorithm.py b/geomagio/algorithm/AdjustedAlgorithm.py
index ceb87ba52efe7385d46917d54e4f163f363a2556..3dbd5f766d55bf879417f4a7265044db56f1d505 100644
--- a/geomagio/algorithm/AdjustedAlgorithm.py
+++ b/geomagio/algorithm/AdjustedAlgorithm.py
@@ -51,24 +51,22 @@ class AdjustedAlgorithm(Algorithm):
                 data = json.loads(data)
         except IOError as err:
             raise FileNotFoundError("statefile not found")
-        pier_correction = 0
         # Adjusted matrix defaults to identity matrix
         matrix_size = len([c for c in self.get_input_channels() if c != "F"]) + 1
-        matrix = np.eye(matrix_size)
-        if self.statefile is not None:
-            try:
-                if "pier_correction" in data.keys():
-                    # read data
-                    matrix = np.array(data["matrix"])
-                    pier_correction = data["pier_correction"]
-                if "PC" in data.keys():
-                    # read data from legacy format
-                    for row in range(matrix_size):
-                        for col in range(matrix_size):
-                            matrix[row, col] = np.float64(data[f"M{row+1}{col+1}"])
-                    pier_correction = np.float64(data["PC"])
-            except:
-                raise KeyError("matrix and pier correction not found in statefile")
+        if "pier_correction" in data.keys():
+            m = AdjustedMatrix(**data)
+            matrix = m.matrix
+            pier_correction = m.pier_correction
+        elif "PC" in data.keys():
+            matrix = np.eye(matrix_size)
+            # read data from legacy format
+            for row in range(matrix_size):
+                for col in range(matrix_size):
+                    matrix[row, col] = np.float64(data[f"M{row+1}{col+1}"])
+            pier_correction = np.float64(data["PC"])
+        else:
+            raise ValueError("pier correction not found in statefile")
+
         self.matrix = AdjustedMatrix(matrix=matrix, pier_correction=pier_correction)
 
     def save_state(self):
@@ -77,13 +75,10 @@ class AdjustedAlgorithm(Algorithm):
         """
         if self.statefile is None:
             return
-        data = {
-            "matrix": list(self.matrix.matrix),
-            "pier_correction": self.matrix.pier_correction,
-        }
-
+        json_string = self.matrix.json()
+        json_dict = json.loads(json_string)
         with open(self.statefile, "w") as f:
-            f.write(json.dumps(data))
+            f.write(json.dumps(json_dict))
 
     def create_trace(self, channel, stats, data):
         """Utility to create a new trace object.
diff --git a/test/adjusted_test/adjusted_test.py b/test/adjusted_test/adjusted_test.py
index 04dc921e5b1be69eca14d040af12691b8521fde4..3bab69ac0da268ff1dff81ffb13eab1dcd041c3c 100644
--- a/test/adjusted_test/adjusted_test.py
+++ b/test/adjusted_test/adjusted_test.py
@@ -1,11 +1,11 @@
-from geomagio.adjusted.AdjustedMatrix import AdjustedMatrix
 import json
+
 import numpy as np
 from numpy.testing import assert_equal, assert_array_almost_equal
 from obspy.core import UTCDateTime
 
+from geomagio.adjusted import AdjustedMatrix
 from geomagio.adjusted.Affine import Affine, get_epochs
-
 from geomagio.adjusted.transform import (
     LeastSq,
     QRFactorization,
@@ -19,9 +19,10 @@ from geomagio.adjusted.transform import (
     ZRotationHscaleZbaseline,
     ZRotationShear,
 )
-
-from geomagio.residual import WebAbsolutesFactory
-from test.residual_test.residual_test import get_spreadsheet_directory_readings
+from test.residual_test.residual_test import (
+    get_json_readings,
+    get_spreadsheet_directory_readings,
+)
 
 
 def format_result(result) -> dict:
@@ -46,15 +47,6 @@ def get_expected_synthetic_result(key):
     return expected["results"][key]
 
 
-def get_readings_BOU201911202001():
-    readings = WebAbsolutesFactory().get_readings(
-        observatory="BOU",
-        starttime=UTCDateTime("2019-10-01T00:00:00Z"),
-        endtime=UTCDateTime("2020-02-29T23:59:00Z"),
-    )
-    return readings
-
-
 def get_sythetic_variables():
     with open("etc/adjusted/synthetic.json") as file:
         data = json.load(file)
@@ -66,7 +58,7 @@ def get_sythetic_variables():
 
 
 def test_BOU201911202001_infinite_one_interval():
-    readings = get_readings_BOU201911202001()
+    readings = get_json_readings("etc/residual/BOU20191001.json")
     result = Affine(
         observatory="BOU",
         starttime=UTCDateTime("2019-11-01T00:00:00Z"),
@@ -93,7 +85,7 @@ def test_BOU201911202001_infinite_one_interval():
 
 
 def test_BOU201911202001_infinite_weekly():
-    readings = get_readings_BOU201911202001()
+    readings = get_json_readings("etc/residual/BOU20191001.json")
 
     starttime = UTCDateTime("2019-11-01T00:00:00Z")
     endtime = UTCDateTime("2020-01-31T23:59:00Z")
@@ -142,7 +134,7 @@ def test_BOU201911202001_invalid_readings():
 
 
 def test_BOU201911202001_short_acausal():
-    readings = get_readings_BOU201911202001()
+    readings = get_json_readings("etc/residual/BOU20191001.json")
 
     starttime = UTCDateTime("2019-11-01T00:00:00Z")
     endtime = UTCDateTime("2020-01-31T23:59:00Z")
@@ -175,7 +167,7 @@ def test_BOU201911202001_short_acausal():
 
 
 def test_BOU201911202001_short_causal():
-    readings = get_readings_BOU201911202001()
+    readings = get_json_readings("etc/residual/BOU20191001.json")
 
     starttime = UTCDateTime("2019-11-01T00:00:00Z")
     endtime = UTCDateTime("2020-01-31T23:59:00Z")
@@ -361,11 +353,7 @@ def test_CMO2015_short_causal():
 
 
 def test_get_epochs():
-    readings = WebAbsolutesFactory().get_readings(
-        observatory="BOU",
-        starttime=UTCDateTime("2020-01-01"),
-        endtime=UTCDateTime("2020-01-14"),
-    )
+    readings = get_json_readings("etc/residual/BOU20200101.json")
     # force a bad measurement for second reading
     readings[2].absolutes[1].absolute = 0
     epochs = [r.time for r in readings if r.get_absolute("H").absolute == 0]
diff --git a/test/algorithm_test/AdjustedAlgorithm_test.py b/test/algorithm_test/AdjustedAlgorithm_test.py
index 76516a77c9dbb22920f79be1a478603f52ae8e02..98eba78b433567c27b5c879f4e0883dfe11b74c0 100644
--- a/test/algorithm_test/AdjustedAlgorithm_test.py
+++ b/test/algorithm_test/AdjustedAlgorithm_test.py
@@ -1,5 +1,5 @@
 from geomagio.adjusted import AdjustedMatrix
-from geomagio.algorithm import AdjustedAlgorithm as adj
+from geomagio.algorithm import AdjustedAlgorithm
 import geomagio.iaga2002 as i2
 from numpy.testing import assert_almost_equal, assert_equal
 
@@ -7,9 +7,9 @@ from numpy.testing import assert_almost_equal, assert_equal
 def test_construct():
     """algorithm_test.AdjustedAlgorithm_test.test_construct()"""
     # load adjusted data transform matrix and pier correction
-    a = adj(statefile="etc/adjusted/adjbou_state_.json")
+    a = AdjustedAlgorithm(statefile="etc/adjusted/adjbou_state_.json")
 
-    assert_almost_equal(actual=a.matrix.matrix[0, 0], desired=9.83427577e-01, decimal=6)
+    assert_almost_equal(actual=a.matrix.matrix[0][0], desired=9.83427577e-01, decimal=6)
 
     assert_equal(actual=a.matrix.pier_correction, desired=-22)
 
@@ -30,7 +30,7 @@ def test_process_XYZF_AdjustedMatrix():
     original script
     """
     # Initiate algorithm with AdjustedMatrix object
-    a = adj(
+    a = AdjustedAlgorithm(
         matrix=AdjustedMatrix(
             matrix=[
                 [
@@ -78,7 +78,7 @@ def test_process_reverse_polarity_AdjustedMatrix():
     original script. Tests reverse polarity martix.
     """
     # Initiate algorithm with AdjustedMatrix object
-    a = adj(
+    a = AdjustedAlgorithm(
         matrix=AdjustedMatrix(
             matrix=[
                 [-1, 0, 0],
@@ -114,7 +114,7 @@ def test_process_XYZF_statefile():
     Uses statefile to generate AdjustedMatrix
     """
     # load adjusted data transform matrix and pier correction
-    a = adj(statefile="etc/adjusted/adjbou_state_.json")
+    a = AdjustedAlgorithm(statefile="etc/adjusted/adjbou_state_.json")
 
     # load boulder Jan 16 files from /etc/ directory
     with open("etc/adjusted/BOU201601vmin.min") as f:
@@ -139,7 +139,7 @@ def test_process_reverse_polarity_statefile():
     Uses statefile to generate AdjustedMatrix
     """
     # load adjusted data transform matrix and pier correction
-    a = adj(
+    a = AdjustedAlgorithm(
         statefile="etc/adjusted/adjbou_state_HE_.json",
         inchannels=["H", "E"],
         outchannels=["H", "E"],
diff --git a/test/residual_test/residual_test.py b/test/residual_test/residual_test.py
index dc391d4b49b932ad6128a44575680e1765244f8b..e1fe36f2b6708130d5bd2c3ef6a139bc2061b795 100644
--- a/test/residual_test/residual_test.py
+++ b/test/residual_test/residual_test.py
@@ -1,5 +1,9 @@
+import json
+
 from numpy.testing import assert_almost_equal, assert_equal
+from pydantic import parse_obj_as
 import pytest
+from typing import List
 
 from obspy.core import UTCDateTime
 from geomagio.residual import (
@@ -44,14 +48,10 @@ def assert_readings_equal(expected: Reading, actual: Reading, decimal: int):
         )
 
 
-def get_null_absolutes(observatory, starttime, endtime):
-    """
-    Tests functionality of WebAbsolutesFactory and recalculation of absolutes
-    """
-    # establish SpreadsheetAbsolutesFactory for reading test data from Excel
-    waf = WebAbsolutesFactory()
-    # Read spreadsheet containing test data
-    readings = waf.get_readings(observatory, starttime, endtime)
+def get_json_readings(filename: str):
+    with open(filename, "r") as file:
+        readings = json.load(file)
+    readings = parse_obj_as(List[Reading], readings)
     return readings
 
 
@@ -129,11 +129,7 @@ def test_BOU_20190702():
     Tests gathering of BOU's metadata for use by calculations.
     Tests calculations for null method measurements in units of DM.
     """
-    readings = get_null_absolutes(
-        observatory="BOU",
-        starttime=UTCDateTime("2019-07-02T00:00:00Z"),
-        endtime=UTCDateTime("2019-07-03T00:00:00Z"),
-    )
+    readings = get_json_readings("etc/residual/BOU20190702.json")
     for reading in readings:
         assert_readings_equal(
             expected=reading,
@@ -148,11 +144,7 @@ def test_BOU_20200422():
     Tests gathering of BOU's metadata for use by calculations.
     Tests calculations for null method measurements in units of DMS.
     """
-    readings = get_null_absolutes(
-        observatory="BOU",
-        starttime=UTCDateTime("2020-04-22T00:00:00Z"),
-        endtime=UTCDateTime("2020-04-23T00:00:00Z"),
-    )
+    readings = get_json_readings("etc/residual/BOU20200422.json")
     for reading in readings:
         assert_readings_equal(
             expected=reading,