diff --git a/notebooks/OfflineReader_tutorial.ipynb b/notebooks/OfflineReader_tutorial.ipynb
index c1df4f229672c4736ee59aa49721a9b0fa1aa2ca..f0e10a37608610155b31e76cfb724d6eaafb93a2 100644
--- a/notebooks/OfflineReader_tutorial.ipynb
+++ b/notebooks/OfflineReader_tutorial.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -32,7 +32,7 @@
     {
      "data": {
       "text/plain": [
-       "<km3io.aanet.OfflineReader at 0x7f87bd4ce310>"
+       "<km3io.offline.OfflineReader at 0x7fa25a11fc50>"
       ]
      },
      "execution_count": 2,
@@ -245,7 +245,7 @@
     {
      "data": {
       "text/plain": [
-       "<ChunkedArray [1 2 3 ... 8 9 10] at 0x7f87906e86d0>"
+       "<ChunkedArray [1 2 3 ... 8 9 10] at 0x7fa25a110690>"
       ]
      },
      "execution_count": 6,
@@ -265,7 +265,7 @@
     {
      "data": {
       "text/plain": [
-       "<ChunkedArray [44 44 44 ... 44 44 44] at 0x7f87906e87d0>"
+       "<ChunkedArray [44 44 44 ... 44 44 44] at 0x7fa25a110e90>"
       ]
      },
      "execution_count": 7,
@@ -285,7 +285,7 @@
     {
      "data": {
       "text/plain": [
-       "<ChunkedArray [182 183 202 ... 185 185 204] at 0x7f87906e8c10>"
+       "<ChunkedArray [182 183 202 ... 185 185 204] at 0x7fa25a1109d0>"
       ]
      },
      "execution_count": 8,
@@ -305,7 +305,7 @@
     {
      "data": {
       "text/plain": [
-       "<ChunkedArray [176 125 318 ... 84 255 105] at 0x7f87906f9210>"
+       "<ChunkedArray [176 125 318 ... 84 255 105] at 0x7fa25a165ed0>"
       ]
      },
      "execution_count": 9,
@@ -332,7 +332,7 @@
     {
      "data": {
       "text/plain": [
-       "<ChunkedArray [5.170483995038151 4.8283137373023015 5.762051382780177 ... 4.430816798843313 5.541263545158426 4.653960350157523] at 0x7f879052d4d0>"
+       "<ChunkedArray [5.170483995038151 4.8283137373023015 5.762051382780177 ... 4.430816798843313 5.541263545158426 4.653960350157523] at 0x7fa25b0a5c50>"
       ]
      },
      "execution_count": 10,
@@ -449,7 +449,7 @@
     {
      "data": {
       "text/plain": [
-       "<ChunkedArray [[806451572 806451572 806451572 ... 809544061 809544061 809544061] [806451572 806451572 806451572 ... 809524432 809526097 809544061] [806451572 806451572 806451572 ... 809544061 809544061 809544061] ... [806451572 806455814 806465101 ... 809526097 809544058 809544061] [806455814 806455814 806455814 ... 809544061 809544061 809544061] [806455814 806455814 806455814 ... 809544058 809544058 809544061]] at 0x7f87906f9450>"
+       "<ChunkedArray [[806451572 806451572 806451572 ... 809544061 809544061 809544061] [806451572 806451572 806451572 ... 809524432 809526097 809544061] [806451572 806451572 806451572 ... 809544061 809544061 809544061] ... [806451572 806455814 806465101 ... 809526097 809544058 809544061] [806455814 806455814 806455814 ... 809544061 809544061 809544061] [806455814 806455814 806455814 ... 809544058 809544058 809544061]] at 0x7fa25a165250>"
       ]
      },
      "execution_count": 14,
@@ -469,7 +469,7 @@
     {
      "data": {
       "text/plain": [
-       "<ChunkedArray [[24 30 22 ... 38 26 23] [29 26 22 ... 26 28 24] [27 19 13 ... 27 24 16] ... [22 22 9 ... 27 32 27] [30 32 17 ... 30 24 29] [27 41 36 ... 29 24 28]] at 0x7f87906f9810>"
+       "<ChunkedArray [[24 30 22 ... 38 26 23] [29 26 22 ... 26 28 24] [27 19 13 ... 27 24 16] ... [22 22 9 ... 27 32 27] [30 32 17 ... 30 24 29] [27 41 36 ... 29 24 28]] at 0x7fa25a1dcf10>"
       ]
      },
      "execution_count": 15,
@@ -645,7 +645,7 @@
     {
      "data": {
       "text/plain": [
-       "<ChunkedArray [[294.6407542676734 294.6407542676734 294.6407542676734 ... 67.81221253265059 67.7756405143316 67.77250505700384] [96.75133289411137 96.75133289411137 96.75133289411137 ... 39.21916536442286 39.184645826013806 38.870325146341884] [560.2775306614813 560.2775306614813 560.2775306614813 ... 118.88577278801066 118.72271313687405 117.80785995187605] ... [71.03251451148226 71.03251451148226 71.03251451148226 ... 16.714140573909347 16.444395245214945 16.34639241716669] [326.440133294878 326.440133294878 326.440133294878 ... 87.79818671079849 87.75488082571873 87.74839444768625] [159.77779654216795 159.77779654216795 159.77779654216795 ... 33.8669134999348 33.821631538334984 33.77240735670646]] at 0x7f8790683d50>"
+       "<ChunkedArray [[294.6407542676734 294.6407542676734 294.6407542676734 ... 67.81221253265059 67.7756405143316 67.77250505700384] [96.75133289411137 96.75133289411137 96.75133289411137 ... 39.21916536442286 39.184645826013806 38.870325146341884] [560.2775306614813 560.2775306614813 560.2775306614813 ... 118.88577278801066 118.72271313687405 117.80785995187605] ... [71.03251451148226 71.03251451148226 71.03251451148226 ... 16.714140573909347 16.444395245214945 16.34639241716669] [326.440133294878 326.440133294878 326.440133294878 ... 87.79818671079849 87.75488082571873 87.74839444768625] [159.77779654216795 159.77779654216795 159.77779654216795 ... 33.8669134999348 33.821631538334984 33.77240735670646]] at 0x7fa25a0c26d0>"
       ]
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      "execution_count": 21,
@@ -824,7 +824,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 27,
+   "execution_count": 41,
    "metadata": {},
    "outputs": [
     {
@@ -833,28 +833,14 @@
        "<OfflineTracks: 10 parsed elements>"
       ]
      },
-     "execution_count": 27,
+     "execution_count": 41,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "r.mc_tracks"
+    "r.mc_tracks."
    ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": []
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": []
   }
  ],
  "metadata": {