diff --git a/kubejs/server_scripts/ad_astra/data.js b/kubejs/server_scripts/ad_astra/data.js
new file mode 100644
index 000000000..e55b02f3f
--- /dev/null
+++ b/kubejs/server_scripts/ad_astra/data.js
@@ -0,0 +1,13 @@
+// priority: 0
+
+function registerTFCDataForAdAstra(event) {
+
+	event.itemSize('ad_astra:tier_1_rocket', 'huge', 'very_heavy')
+	event.itemSize('ad_astra:tier_2_rocket', 'huge', 'very_heavy')
+	event.itemSize('ad_astra:tier_3_rocket', 'huge', 'very_heavy')
+	event.itemSize('ad_astra:tier_4_rocket', 'huge', 'very_heavy')
+
+	event.itemSize('ad_astra:tier_1_rover', 'very_large', 'very_heavy')
+
+	event.itemSize('ad_astra:launch_pad', 'very_large', 'very_heavy')
+}
\ No newline at end of file