diff --git a/doc/BOZ analysis part I parameters determination.ipynb b/doc/BOZ analysis part I parameters determination.ipynb
index 9c89c0dc4e5528f8e7fef4d1ccea1865cc54f85d..750b0d386128736a6e1ce750c8085681be4042e8 100644
--- a/doc/BOZ analysis part I parameters determination.ipynb	
+++ b/doc/BOZ analysis part I parameters determination.ipynb	
@@ -150,11 +150,11 @@
    },
    "outputs": [],
    "source": [
-    "proposal = 2619\n",
-    "darkrun = 33\n",
-    "run = 38\n",
+    "proposal = 2937\n",
+    "darkrun = 478\n",
+    "run = 477\n",
     "module = 15\n",
-    "gain = 4"
+    "gain = 0.5"
    ]
   },
   {
@@ -212,7 +212,26 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "mean_th = (30, 56)\n",
+    "dark = boz.average_module(params.arr_dark).compute()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "pedestal = np.mean(dark)\n",
+    "pedestal"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "mean_th = (pedestal-25, pedestal+30)\n",
     "f = boz.inspect_dark(params.arr_dark, mean_th=mean_th)\n",
     "f.savefig(path+f'p{params.proposal}-r{params.run}-d{params.darkrun}-inspect-dark.png', dpi=300)"
    ]
@@ -287,7 +306,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "params.rois_th = 130\n",
+    "params.rois_th = 1\n",
     "params.rois = boz.find_rois_from_params(params)"
    ]
   },
@@ -306,7 +325,6 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "dark = boz.average_module(params.arr_dark).compute()\n",
     "data = boz.average_module(params.arr, dark=dark).compute()\n",
     "dataM = data.mean(axis=0) # mean over pulseId"
    ]
@@ -448,8 +466,8 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "N = 40\n",
-    "domain = boz.nl_domain(N, 40, 280)\n",
+    "N = 80\n",
+    "domain = boz.nl_domain(N, 40, 511)\n",
     "params.alpha = 0.5\n",
     "params.max_iter = 25"
    ]