diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..30dffe6
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "SaturnData"]
+	path = SaturnData
+	url = https://github.com/Yasu3D/SaturnData
diff --git a/SaturnData b/SaturnData
new file mode 160000
index 0000000..8ed9bb1
--- /dev/null
+++ b/SaturnData
@@ -0,0 +1 @@
+Subproject commit 8ed9bb1654593d3ee28e92bbe1b9022ce5c7a2bc