FIX: Update Lo l2 map statistical uncertainty (IMAP-Science-Operations-Center#2610)

greglucas · web-flow · commit f3f0595a31e0 · 2026-01-26T10:27:27.000-07:00
There was an error in the L2 statistical uncertainty.
diff --git a/imap_processing/lo/l2/lo_l2.py b/imap_processing/lo/l2/lo_l2.py
@@ -948,8 +948,7 @@ def calculate_intensities(dataset: xr.Dataset) -> xr.Dataset:
     # the equation is for the variance
     dataset["ena_intensity_stat_uncert"] = np.sqrt(
         dataset["counts_over_eff_squared"]
-        / (dataset["geometric_factor"] * dataset["energy"] * dataset["exposure_factor"])
-    )
+    ) / (dataset["geometric_factor"] * dataset["energy"] * dataset["exposure_factor"])
 
     # Equation 5 from mapping document (systematic uncertainty)
     dataset["ena_intensity_sys_err"] = (
diff --git a/imap_processing/tests/lo/test_lo_l2.py b/imap_processing/tests/lo/test_lo_l2.py
@@ -1110,11 +1110,10 @@ def test_calculate_intensities_basic(self, sample_dataset_with_geometric_factors
         # Check statistical uncertainty calculation
         expected_stat_uncert = np.sqrt(
             sample_dataset_with_geometric_factors["counts_over_eff_squared"]
-            / (
-                sample_dataset_with_geometric_factors["geometric_factor"]
-                * sample_dataset_with_geometric_factors["energy"]
-                * sample_dataset_with_geometric_factors["exposure_factor"]
-            )
+        ) / (
+            sample_dataset_with_geometric_factors["geometric_factor"]
+            * sample_dataset_with_geometric_factors["energy"]
+            * sample_dataset_with_geometric_factors["exposure_factor"]
         )
         xr.testing.assert_allclose(
             result["ena_intensity_stat_uncert"], expected_stat_uncert
