diff --git a/ess/data/tw_project_file_reverse_engineered.json b/ess/data/tw_project_file_reverse_engineered.json
index 55d3813551eb36136be27a62523f633a58a5bb35..4b572380da3a26914d2c03de56e0b2b7b5cb0101 100644
--- a/ess/data/tw_project_file_reverse_engineered.json
+++ b/ess/data/tw_project_file_reverse_engineered.json
@@ -30,11 +30,6 @@
       "i",
       4
     ],
-    "main:beam2_npart": [
-      11988,
-      "i",
-      4
-    ],
     "main:beam1_energy": [
       12100,
       "d",
@@ -245,6 +240,26 @@
       7337,
       "str",
       200
+    ],
+    "main:beam2_npart": [
+      11988,
+      "i",
+      4
+    ],
+    "main:beam2_emit_xxp": [
+      12124,
+      "d",
+      8
+    ],
+    "main:beam2_emit_yyp": [
+      12140,
+      "d",
+      8
+    ],
+    "main:beam2_emit_zzp": [
+      12156,
+      "d",
+      8
     ]
   },
   [