diff --git a/PARAM_DEF/helios1_b_mag.xml b/PARAM_DEF/helios1_b_mag.xml
new file mode 100644
index 0000000..618b13c
--- /dev/null
+++ b/PARAM_DEF/helios1_b_mag.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+<param xml:id="helios1_b_mag">
+	<get>
+		<vi name="helios1:mag:corefit">
+			<baseParam name="B_rtn"/>
+		</vi>
+	</get>
+	<process>magnitude($helios1_mag_corefit_B_rtn)</process>
+	<output/>
+</param>
diff --git a/PARAM_DEF/helios2_b_mag.xml b/PARAM_DEF/helios2_b_mag.xml
new file mode 100644
index 0000000..dc44262
--- /dev/null
+++ b/PARAM_DEF/helios2_b_mag.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+<param xml:id="helios2_b_mag">
+	<get>
+		<vi name="helios2:mag:corefit">
+			<baseParam name="B_rtn"/>
+		</vi>
+	</get>
+	<process>magnitude($helios2_mag_corefit_B_rtn)</process>
+	<output/>
+</param>
--
libgit2 0.21.2