Update ESA 9 excess background uncertainty

Update L2 calibration uncertainty fraction

Author: tmplummer

imap_processing/hi/hi_l2.py

@@ -37,8 +37,8 @@
 FULL_EXPOSURE_TIME_AVERAGE_SET = {"bg_rate", "bg_rate_sys_err", "obs_date", "energy_sc"}
 
 # Calibration systematic uncertainty as a fraction of intensity.
-# This represents the current calibration uncertainty (22%).
-CALIBRATION_UNCERTAINTY_FRACTION = 0.22
+# This represents the current calibration uncertainty (40%).
+CALIBRATION_UNCERTAINTY_FRACTION = 0.40
 
 
 # =============================================================================

imap_processing/hi/utils.py

@@ -141,7 +141,7 @@ class HiConstants:
     # ESAs 7, 8, 9 get an extra 0.0025/s uncertainty to account for possible
     # unidentified additional background in these ESA steps.
     UPPER_ESA_EXTRA_BACKGROUND_UNC = xr.DataArray(
-        np.array([0.0025, 0.0025, 0.0025]),
+        np.array([0.0025, 0.0025, 0.0055]),
         dims=["esa_energy_step"],
         coords={"esa_energy_step": np.array([7, 8, 9], dtype=int)},
     )