diff --git a/python/lsst/analysis/tools/actions/vector/__init__.py b/python/lsst/analysis/tools/actions/vector/__init__.py
index 701cb5b25..03962d18e 100644
--- a/python/lsst/analysis/tools/actions/vector/__init__.py
+++ b/python/lsst/analysis/tools/actions/vector/__init__.py
@@ -1,3 +1,4 @@
+from .calcFwhmZernikes import *
 from .calcRhoStatistics import *
 from .calcShapeSize import CalcShapeSize
 from .ellipticity import *
diff --git a/python/lsst/analysis/tools/actions/vector/calcFwhmZernikes.py b/python/lsst/analysis/tools/actions/vector/calcFwhmZernikes.py
new file mode 100644
index 000000000..6d8f30700
--- /dev/null
+++ b/python/lsst/analysis/tools/actions/vector/calcFwhmZernikes.py
@@ -0,0 +1,97 @@
+# This file is part of analysis_tools.
+#
+# Developed for the LSST Data Management System.
+# This product includes software developed by the LSST Project
+# (https://www.lsst.org).
+# See the COPYRIGHT file at the top-level directory of this distribution
+# for details of code ownership.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+from __future__ import annotations
+
+__all__ = ("CalcFwhmZernikesBase", "CalcFwhmZernikesLsst", "CalcFwhmZernikesLatiss")
+
+import numpy as np
+from lsst.pex.config import Field
+from ...interfaces import KeyedData, KeyedDataSchema, Vector, ScalarAction, Scalar
+
+
+class CalcFwhmZernikesBase(ScalarAction):
+
+    vectorKey = Field[str](doc="Vector on which to compute statistics")
+    # conversion_factors need to be assigned in daughter class
+    conversion_factors = None
+
+    def getInputSchema(self, **kwargs) -> KeyedDataSchema:
+        return ((self.vectorKey, Vector),)
+
+    def __call__(self, data: KeyedData, **kwargs) -> Scalar:
+
+        results = np.sqrt(np.sum((data[self.vectorKey] * self.conversion_factors) ** 2.0))
+
+        return results
+
+
+class CalcFwhmZernikesLsst(CalcFwhmZernikesBase):
+
+    conversion_factors = np.array(
+        [
+            0.751,
+            0.271,
+            0.271,
+            0.819,
+            0.819,
+            0.396,
+            0.396,
+            1.679,
+            0.937,
+            0.937,
+            0.517,
+            0.517,
+            1.755,
+            1.755,
+            1.089,
+            1.089,
+            0.635,
+            0.635,
+            2.810,
+        ]
+    )
+
+
+class CalcFwhmZernikesLatiss(CalcFwhmZernikesBase):
+
+    conversion_factors = np.array(
+        [
+            3.395,
+            1.969,
+            1.969,
+            4.374,
+            4.374,
+            2.802,
+            2.802,
+            7.592,
+            5.726,
+            5.726,
+            3.620,
+            3.620,
+            8.696,
+            8.696,
+            7.146,
+            7.146,
+            4.434,
+            4.434,
+            12.704,
+        ]
+    )
diff --git a/python/lsst/analysis/tools/analysisMetrics/__init__.py b/python/lsst/analysis/tools/analysisMetrics/__init__.py
index bf54b6b19..c39618d77 100644
--- a/python/lsst/analysis/tools/analysisMetrics/__init__.py
+++ b/python/lsst/analysis/tools/analysisMetrics/__init__.py
@@ -19,6 +19,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 from .analysisMetrics import *
+from .aosMetrics import *
 from .apDiaSourceMetrics import *
 from .apSsoMetrics import *
 from .limitingMagnitudeMetric import *
diff --git a/python/lsst/analysis/tools/analysisMetrics/aosMetrics.py b/python/lsst/analysis/tools/analysisMetrics/aosMetrics.py
new file mode 100644
index 000000000..3bcfa5746
--- /dev/null
+++ b/python/lsst/analysis/tools/analysisMetrics/aosMetrics.py
@@ -0,0 +1,54 @@
+# This file is part of analysis_tools.
+#
+# Developed for the LSST Data Management System.
+# This product includes software developed by the LSST Project
+# (https://www.lsst.org).
+# See the COPYRIGHT file at the top-level directory of this distribution
+# for details of code ownership.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+from __future__ import annotations
+
+__all__ = ("ZernikesFwhmMetricLsst", "ZernikesFwhmMetricLatiss")
+
+from ..actions.vector import CalcFwhmZernikesLsst, CalcFwhmZernikesLatiss
+from ..interfaces import AnalysisMetric
+
+
+class ZernikesFwhmMetricLsst(AnalysisMetric):
+    """Calculate FWHM from Zernikes for LsstCam."""
+
+    def setDefaults(self):
+        super().setDefaults()
+
+        # Calculate FWHM from Zernike Coefficients
+        self.process.calculateActions.ZernikesFwhmMetric = CalcFwhmZernikesLsst(
+            vectorKey="zernikeEstimateAvg"
+        )
+
+        self.produce.units = {"ZernikesFwhmMetric": "arcsec"}
+
+
+class ZernikesFwhmMetricLatiss(AnalysisMetric):
+    """Calculate FWHM from Zernikes for LAtiss."""
+
+    def setDefaults(self):
+        super().setDefaults()
+
+        # Calculate FWHM from Zernike Coefficients
+        self.process.calculateActions.ZernikesFwhmMetric = CalcFwhmZernikesLatiss(
+            vectorKey="zernikeEstimateAvg"
+        )
+
+        self.produce.units = {"ZernikesFwhmMetric": "arcsec"}
diff --git a/python/lsst/analysis/tools/tasks/__init__.py b/python/lsst/analysis/tools/tasks/__init__.py
index c9e85dbd2..b4c0600ef 100644
--- a/python/lsst/analysis/tools/tasks/__init__.py
+++ b/python/lsst/analysis/tools/tasks/__init__.py
@@ -1,3 +1,4 @@
+from .aosAnalysis import *
 from .associatedSourcesTractAnalysis import *
 from .catalogMatch import *
 from .ccdVisitTableAnalysis import *
diff --git a/python/lsst/analysis/tools/tasks/aosAnalysis.py b/python/lsst/analysis/tools/tasks/aosAnalysis.py
new file mode 100644
index 000000000..174f434e3
--- /dev/null
+++ b/python/lsst/analysis/tools/tasks/aosAnalysis.py
@@ -0,0 +1,50 @@
+# This file is part of analysis_tools.
+#
+# Developed for the LSST Data Management System.
+# This product includes software developed by the LSST Project
+# (https://www.lsst.org).
+# See the COPYRIGHT file at the top-level directory of this distribution
+# for details of code ownership.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+from __future__ import annotations
+
+__all__ = ("aosAnalysisConnections", "aosAnalysisConfig", "aosAnalysisTask")
+
+from lsst.pipe.base import connectionTypes as ct
+
+from .base import AnalysisBaseConfig, AnalysisBaseConnections, AnalysisPipelineTask
+
+
+class aosAnalysisConnections(
+    AnalysisBaseConnections,
+    dimensions=("visit", "detector", "instrument"),
+):
+    data = ct.Input(
+        doc="Zernikes from detector.",
+        name="zernikeEstimateAvg",
+        storageClass="NumpyArray",
+        dimensions=("visit", "detector", "instrument"),
+        deferLoad=True,
+    )
+
+
+class aosAnalysisConfig(AnalysisBaseConfig, pipelineConnections=aosAnalysisConnections):
+    pass
+
+
+class aosAnalysisTask(AnalysisPipelineTask):
+
+    ConfigClass = aosAnalysisConfig
+    _DefaultName = "aosAnalysis"
diff --git a/python/lsst/analysis/tools/tasks/base.py b/python/lsst/analysis/tools/tasks/base.py
index ac308693d..3b84af5a3 100644
--- a/python/lsst/analysis/tools/tasks/base.py
+++ b/python/lsst/analysis/tools/tasks/base.py
@@ -371,7 +371,15 @@ def loadData(self, handle: DeferredDatasetHandle, names: Iterable[str] | None =
         """
         if names is None:
             names = self.collectInputNames()
-        return cast(KeyedData, handle.get(parameters={"columns": names}))
+
+        # If input data is a numpy array instead of a catalog
+        #  or dataframe, we need to create an object with keys.
+        if handle.ref.datasetType.storageClass_name == "NumpyArray":
+            dataLabel = list(names)[0]
+            dataDict = {dataLabel: handle.get()}
+            return cast(KeyedData, dataDict)
+        else:
+            return cast(KeyedData, handle.get(parameters={"columns": names}))
 
     def collectInputNames(self) -> Iterable[str]:
         """Get the names of the inputs.