diff --git a/km3net_testdata/data/oscillations/ORCA6_433kt-y_opendata_v0.4_testdata.root b/km3net_testdata/data/oscillations/ORCA6_433kt-y_opendata_v0.4_testdata.root
new file mode 100644
index 0000000000000000000000000000000000000000..82379b562843fce6abf7baf09fe4098088743db4
Binary files /dev/null and b/km3net_testdata/data/oscillations/ORCA6_433kt-y_opendata_v0.4_testdata.root differ
diff --git a/km3net_testdata/data/oscillations/bins_433kt-y_v0.4.json b/km3net_testdata/data/oscillations/bins_433kt-y_v0.4.json
new file mode 100644
index 0000000000000000000000000000000000000000..334e1406c185aacf443cb7da59acb57131e561e0
--- /dev/null
+++ b/km3net_testdata/data/oscillations/bins_433kt-y_v0.4.json
@@ -0,0 +1,44 @@
+{
+  "E_true_bins": [
+    1.0, 1.2589254117941673, 1.5848931924611136, 1.9952623149688797, 2.51188643150958,
+    3.1622776601683795, 3.9810717055349727, 5.011872336272723, 6.309573444801933,
+    7.943282347242818, 10.000000000000002, 12.589254117941675, 15.848931924611136,
+    19.952623149688804, 25.1188643150958, 31.622776601683817, 39.810717055349734,
+    50.11872336272724, 63.095734448019364, 79.4328234724282, 100.00000000000004,
+    125.89254117941677, 158.4893192461114, 199.5262314968882, 251.18864315095806,
+    316.22776601683796, 398.1071705534976, 501.1872336272727, 630.9573444801932,
+    794.3282347242821, 1000.0000000000016, 1258.925411794168, 1584.8931924611143,
+    1995.2623149688823, 2511.886431509581, 3162.2776601683804, 3981.071705534977,
+    5011.872336272724, 6309.573444801938, 7943.28234724283, 10000.0
+  ],
+  "cosT_true_bins": [
+    -1.0, -0.975, -0.95, -0.925, -0.9, -0.875, -0.85, -0.825, -0.8, -0.775, -0.75,
+    -0.725, -0.7, -0.675, -0.6499999999999999, -0.625, -0.6, -0.575, -0.55,
+    -0.5249999999999999, -0.5, -0.475, -0.44999999999999996, -0.42499999999999993,
+    -0.3999999999999999, -0.375, -0.35, -0.32499999999999996, -0.29999999999999993,
+    -0.2749999999999999, -0.25, -0.22499999999999998, -0.19999999999999996,
+    -0.17499999999999993, -0.1499999999999999, -0.125, -0.09999999999999998,
+    -0.07499999999999996, -0.04999999999999993, -0.02499999999999991, 0.0, 0.025,
+    0.05, 0.07500000000000001, 0.1, 0.125, 0.15000000000000002, 0.17500000000000002,
+    0.2, 0.225, 0.25, 0.275, 0.30000000000000004, 0.325, 0.35000000000000003, 0.375,
+    0.4, 0.42500000000000004, 0.45, 0.47500000000000003, 0.5, 0.525, 0.55,
+    0.5750000000000001, 0.6000000000000001, 0.625, 0.65, 0.675, 0.7000000000000001,
+    0.7250000000000001, 0.75, 0.775, 0.8, 0.8250000000000001, 0.8500000000000001,
+    0.875, 0.9, 0.925, 0.9500000000000001, 0.9750000000000001, 1.0
+  ],
+  "By_true_bins":[
+    0.0, 1.0 
+  ],
+  "E_reco_bins": [
+    2.0, 2.95752, 4.37345, 5.3183, 6.46727, 7.86447, 9.56352, 11.6296, 14.1421,
+    17.1974, 20.9128, 25.4308, 30.9249, 55.6102, 100.0, 1000.0
+  ],
+  "cosT_reco_bins": [
+    -1.0, -0.9, -0.8, -0.7, -0.6, -0.5, -0.3999999999999999, -0.29999999999999993,
+    -0.19999999999999996, -0.09999999999999998, 0.0, 0.1, 0.2, 0.30000000000000004,
+    0.4, 0.5, 0.6000000000000001, 0.7000000000000001, 0.8, 0.9, 1.0
+  ],
+  "By_reco_bins":[
+    0.0, 1.0 
+  ]
+}
diff --git a/km3net_testdata/data/oscillations/osc_opendata_testdata.root b/km3net_testdata/data/oscillations/osc_opendata_testdata.root
deleted file mode 100644
index f39eb96ba5141da054a26cfe2efbb35588b86ace..0000000000000000000000000000000000000000
Binary files a/km3net_testdata/data/oscillations/osc_opendata_testdata.root and /dev/null differ