diff --git a/config/comCam/fiducialSkyBackground.py b/config/comCam/fiducialSkyBackground.py
index 5766b9d57..6cdb51028 100644
--- a/config/comCam/fiducialSkyBackground.py
+++ b/config/comCam/fiducialSkyBackground.py
@@ -1,14 +1,12 @@
-# Fiducial values derived from SMTN-002 (v2024-03-06), based on
-# syseng_throughput v1.9. Gain values derived from ComCam PTC
-# processed in u/jchiang/ptc_BLOCK-275_w_2024_28.
-# See DM-45333 for more details.
+# Fiducial values derived from skyCounts in syseng_throughput v1.9.
+# See DM-47034 for more details.
 
-# Fiducial SkyBackground in ADU per second
+# Fiducial SkyBackground in electrons per second
 config.fiducialSkyBackground = {
-    "u": 0.91,
-    "g": 9.35,
-    "r": 19.94,
-    "i": 32.04,
-    "z": 48.05,
-    "y": 54.81,
+    "u": 1.51,
+    "g": 15.45,
+    "r": 32.95,
+    "i": 52.94,
+    "z": 79.40,
+    "y": 90.57,
 }
diff --git a/config/comCam/fiducialZeroPoint.py b/config/comCam/fiducialZeroPoint.py
index 08a28d753..2e3f22d94 100644
--- a/config/comCam/fiducialZeroPoint.py
+++ b/config/comCam/fiducialZeroPoint.py
@@ -1,14 +1,12 @@
 # Fiducial values derived from SMTN-002 (v2024-03-06), based on
-# syseng_throughput v1.9. Gain values derived from ComCam PTC
-# processed in u/jchiang/ptc_BLOCK-275_w_2024_28.
-# See DM-45333 for more details.
+# syseng_throughput v1.9. See DM-47034 for more details.
 
-# Fiducial ZeroPoint for 1s exposure
+# Fiducial ZeroPoint in electrons for 1s exposure
 config.fiducialZeroPoint = {
-    "u": 25.97,
-    "g": 27.96,
-    "r": 27.81,
-    "i": 27.62,
-    "z": 27.23,
-    "y": 26.27,
+    "u": 26.52,
+    "g": 28.51,
+    "r": 28.36,
+    "i": 28.17,
+    "z": 27.78,
+    "y": 26.82,
 }
diff --git a/config/comCamSim/fiducialSkyBackground.py b/config/comCamSim/fiducialSkyBackground.py
index 0c5dfdd59..6cdb51028 100644
--- a/config/comCamSim/fiducialSkyBackground.py
+++ b/config/comCamSim/fiducialSkyBackground.py
@@ -1,13 +1,12 @@
-# Fiducial values derived from SMTN-002 (v2024-03-06), based on
-# syseng_throughput v1.9. See SMTN-002 (https://smtn-002.lsst.io) and DM-44855
-# for discussion.
+# Fiducial values derived from skyCounts in syseng_throughput v1.9.
+# See DM-47034 for more details.
 
-# Fiducial SkyBackground in ADU per second
+# Fiducial SkyBackground in electrons per second
 config.fiducialSkyBackground = {
-    "u": 0.90,
-    "g": 9.20,
-    "r": 19.62,
-    "i": 31.51,
-    "z": 47.26,
-    "y": 53.91,
+    "u": 1.51,
+    "g": 15.45,
+    "r": 32.95,
+    "i": 52.94,
+    "z": 79.40,
+    "y": 90.57,
 }
diff --git a/config/comCamSim/fiducialZeroPoint.py b/config/comCamSim/fiducialZeroPoint.py
index 5f8aab382..2e3f22d94 100644
--- a/config/comCamSim/fiducialZeroPoint.py
+++ b/config/comCamSim/fiducialZeroPoint.py
@@ -1,13 +1,12 @@
 # Fiducial values derived from SMTN-002 (v2024-03-06), based on
-# syseng_throughput v1.9. See SMTN-002 (https://smtn-002.lsst.io) and DM-44855
-# for discussion.
+# syseng_throughput v1.9. See DM-47034 for more details.
 
-# Fiducial ZeroPoint for 1s exposure
+# Fiducial ZeroPoint in electrons for 1s exposure
 config.fiducialZeroPoint = {
-    "u": 25.96,
-    "g": 27.95,
-    "r": 27.80,
-    "i": 27.61,
-    "z": 27.22,
-    "y": 26.26,
+    "u": 26.52,
+    "g": 28.51,
+    "r": 28.36,
+    "i": 28.17,
+    "z": 27.78,
+    "y": 26.82,
 }
diff --git a/config/lsstCam/fiducialSkyBackground.py b/config/lsstCam/fiducialSkyBackground.py
index 1fbf13c07..6cdb51028 100644
--- a/config/lsstCam/fiducialSkyBackground.py
+++ b/config/lsstCam/fiducialSkyBackground.py
@@ -1,18 +1,12 @@
-# Fiducial values derived from SMTN-002 (v2024-03-06), based on
-# syseng_throughput v1.9. Gain values derived from ComCam PTC
-# processed in u/jchiang/ptc_BLOCK-275_w_2024_28.
-# See DM-45333 for more details.
+# Fiducial values derived from skyCounts in syseng_throughput v1.9.
+# See DM-47034 for more details.
 
-# Note that we don’t have the real LSSTCam ones yet. As currently formulated,
-# the fiducials depend on the detector gains, and it hasn't been decided yet
-# how to "average" (or otherwise pick from) the detectors in LSSTCam.
-
-# Fiducial SkyBackground in ADU per second
+# Fiducial SkyBackground in electrons per second
 config.fiducialSkyBackground = {
-    "u": 0.91,
-    "g": 9.35,
-    "r": 19.94,
-    "i": 32.04,
-    "z": 48.05,
-    "y": 54.81,
+    "u": 1.51,
+    "g": 15.45,
+    "r": 32.95,
+    "i": 52.94,
+    "z": 79.40,
+    "y": 90.57,
 }
diff --git a/config/lsstCam/fiducialZeroPoint.py b/config/lsstCam/fiducialZeroPoint.py
index 826e8f476..2e3f22d94 100644
--- a/config/lsstCam/fiducialZeroPoint.py
+++ b/config/lsstCam/fiducialZeroPoint.py
@@ -1,18 +1,12 @@
 # Fiducial values derived from SMTN-002 (v2024-03-06), based on
-# syseng_throughput v1.9. Gain values derived from ComCam PTC
-# processed in u/jchiang/ptc_BLOCK-275_w_2024_28.
-# See DM-45333 for more details.
+# syseng_throughput v1.9. See DM-47034 for more details.
 
-# Note that we don’t have the real LSSTCam ones yet. As currently formulated,
-# the fiducials depend on the detector gains, and it hasn't been decided yet
-# how to "average" (or otherwise pick from) the detectors in LSSTCam.
-
-# Fiducial ZeroPoint for 1s exposure
+# Fiducial ZeroPoint in electrons for 1s exposure
 config.fiducialZeroPoint = {
-    "u": 25.97,
-    "g": 27.96,
-    "r": 27.81,
-    "i": 27.62,
-    "z": 27.23,
-    "y": 26.27,
+    "u": 26.52,
+    "g": 28.51,
+    "r": 28.36,
+    "i": 28.17,
+    "z": 27.78,
+    "y": 26.82,
 }