diff --git a/doc/source/users/tutorials/1dc/data_organisation.rst b/doc/source/users/tutorials/1dc/data_organisation.rst
index f5bfe74..81d913c 100644
--- a/doc/source/users/tutorials/1dc/data_organisation.rst
+++ b/doc/source/users/tutorials/1dc/data_organisation.rst
@@ -6,7 +6,7 @@ Data organisation
 Layout
 ^^^^^^
 
-The content of the ``1dc.south`` folder should be as follows:
+The content of the ``1dc`` folder should be as follows:
 
 .. code-block:: bash
 
@@ -20,16 +20,16 @@ The content of the ``1dc.south`` folder should be as follows:
    data/
    data/baseline/
    data/baseline/egal
-   data/baseline/egal/egal_baseline_220000.fits
-   data/baseline/egal/egal_baseline_220001.fits
+   data/baseline/egal/egal_baseline_210000.fits
+   data/baseline/egal/egal_baseline_210001.fits
    ...
    data/baseline/gc
    data/baseline/gc/gc_baseline_310000.fits
    data/baseline/gc/gc_baseline_310001.fits
    ...
    data/baseline/gps
-   data/baseline/gps/gps_baseline_120000.fits
-   data/baseline/gps/gps_baseline_120001.fits
+   data/baseline/gps/gps_baseline_110000.fits
+   data/baseline/gps/gps_baseline_110001.fits
    ...
    models/
    models/models_egal.xml
@@ -50,8 +50,6 @@ The ``caldb`` folder contains the
 that are necessary for the analysis of the simulated CTA data.
 The folder contains the ``1dc`` response that should be used for the
 :ref:`first CTA Data Challenge <glossary_1dc>`.
-Currently only the response functions for CTA South are
-available for zenith angles of 20 deg and 40 deg.
 Specifically, the following response functions are available:
 
  +-----------------------+-------+---------------+--------+----------+
@@ -61,6 +59,10 @@ Specifically, the following response functions are available:
  +-----------------------+-------+---------------+--------+----------+
  | ``South_z40_50h``     | South | Baseline      | 40 deg | 50 hours |
  +-----------------------+-------+---------------+--------+----------+
+ | ``North_z20_50h``     | North | Baseline      | 20 deg | 50 hours |
+ +-----------------------+-------+---------------+--------+----------+
+ | ``North_z40_50h``     | North | Baseline      | 40 deg | 50 hours |
+ +-----------------------+-------+---------------+--------+----------+
 
 
 Event data
@@ -80,13 +82,13 @@ table below:
    +-----------------------------------+---------------------+---------------------+---------------------+
    | Parameter                         |       GPS           |        GC           |         EGAL        |
    +===================================+=====================+=====================+=====================+
-   | Number of observations            |                2046 |                1671 |                 489 |
+   | Number of observations            |                3270 |                1671 |                1271 |
    +-----------------------------------+---------------------+---------------------+---------------------+
    | Duration of each observation      |              1800 s |              1800 s |              1500 s |
    +-----------------------------------+---------------------+---------------------+---------------------+
    | Deadtime fraction                 |                  2% |                  2% |                  2% |
    +-----------------------------------+---------------------+---------------------+---------------------+
-   | Total exposure time of simulation |              1023 h |             835.5 h |            203.75 h |
+   | Total exposure time of simulation |              1635 h |             835.5 h |            529.58 h |
    +-----------------------------------+---------------------+---------------------+---------------------+
    | Simulated event energies          |    30 GeV - 160 TeV |    30 GeV - 160 TeV |    30 GeV - 160 TeV |
    +-----------------------------------+---------------------+---------------------+---------------------+
@@ -94,7 +96,7 @@ table below:
    +-----------------------------------+---------------------+---------------------+---------------------+
    | Start date of observations        | 2021-01-01T11:58:51 | 2021-01-01T11:58:51 | 2021-01-01T11:58:51 |
    +-----------------------------------+---------------------+---------------------+---------------------+
-   | End date of observations          | 2021-04-18T18:52:51 | 2021-03-29T21:32:51 | 2021-02-11T20:29:51 |
+   | End date of observations          | 2021-04-18T18:52:51 | 2021-03-29T21:32:51 | 2021-02-25T14:38:51 |
    +-----------------------------------+---------------------+---------------------+---------------------+
 
 
diff --git a/doc/source/users/tutorials/1dc/event_file.png b/doc/source/users/tutorials/1dc/event_file.png
index e0e3d8a..0c53632 100644
--- a/doc/source/users/tutorials/1dc/event_file.png
+++ b/doc/source/users/tutorials/1dc/event_file.png
diff --git a/doc/source/users/tutorials/1dc/event_header.png b/doc/source/users/tutorials/1dc/event_header.png
index 1e447e0..bdca0f1 100644
--- a/doc/source/users/tutorials/1dc/event_header.png
+++ b/doc/source/users/tutorials/1dc/event_header.png
diff --git a/doc/source/users/tutorials/1dc/event_list.png b/doc/source/users/tutorials/1dc/event_list.png
index 140688d..7847132 100644
--- a/doc/source/users/tutorials/1dc/event_list.png
+++ b/doc/source/users/tutorials/1dc/event_list.png
diff --git a/doc/source/users/tutorials/1dc/getting_data.rst b/doc/source/users/tutorials/1dc/getting_data.rst
index 7c38f2c..7bb482e 100644
--- a/doc/source/users/tutorials/1dc/getting_data.rst
+++ b/doc/source/users/tutorials/1dc/getting_data.rst
@@ -14,31 +14,26 @@ Galactic Centre Survey and the Extragalactic Survey,
 :ref:`instrument response functions (IRFs) <glossary_irf>`, and the
 :ref:`model definition files <glossary_moddef>`
 that were used for the simulation.
-In addition, ctools metadata, including
-:ref:`observation definition files <glossary_obsdef>`
-are available.
 
 The data were split into the separate files that can be downloaded
 by clicking on the following links:
 
-* `Galactic Plane Survey <https://owncloud.cta-observatory.org/remote.php/webdav/1dc.south/gps-south.tar.gz>`_ (6.1 GB)
-* `Galactic Centre Survey <https://owncloud.cta-observatory.org/remote.php/webdav/1dc.south/gc-south.tar.gz>`_ (4.9 GB)
-* `Extragalactic Survey <https://owncloud.cta-observatory.org/remote.php/webdav/1dc.south/egal-south.tar.gz>`_ (1.1 GB)
-* `Instrument Response Functions <https://owncloud.cta-observatory.org/remote.php/webdav/1dc.south/caldb-south.tar.gz>`_ (0.1 MB)
-* `Sky and background models <https://owncloud.cta-observatory.org/remote.php/webdav/1dc.south/models-south.tar.gz>`_ (0.9 GB)
-* `ctools metadata <https://owncloud.cta-observatory.org/remote.php/webdav/1dc.south/obs-south.tar.gz>`_ (0.2 MB)
+* `Galactic Plane Survey <https://owncloud.cta-observatory.org/remote.php/webdav/1dc/gps.tar.gz>`_ (8.3 GB)
+* `Galactic Centre Survey <https://owncloud.cta-observatory.org/remote.php/webdav/1dc/gc.tar.gz>`_ (4.4 GB)
+* `Extragalactic Survey <https://owncloud.cta-observatory.org/remote.php/webdav/1dc/egal.tar.gz>`_ (2.5 GB)
+* `Instrument Response Functions <https://owncloud.cta-observatory.org/remote.php/webdav/1dc/caldb.tar.gz>`_ (1.2 MB)
+* `Sky and background models <https://owncloud.cta-observatory.org/remote.php/webdav/1dc/models.tar.gz>`_ (0.9 GB)
 
 You can also download the files using the ``wget`` tool from the command
 line by typing:
 
 .. code-block:: bash
 
-   $ wget https://owncloud.cta-observatory.org/remote.php/webdav/1dc.south/gps-south.tar.gz --user=<user> --ask-password
-   $ wget https://owncloud.cta-observatory.org/remote.php/webdav/1dc.south/gc-south.tar.gz --user=<user> --ask-password
-   $ wget https://owncloud.cta-observatory.org/remote.php/webdav/1dc.south/egal-south.tar.gz --user=<user> --ask-password
-   $ wget https://owncloud.cta-observatory.org/remote.php/webdav/1dc.south/caldb-south.tar.gz --user=<user> --ask-password
-   $ wget https://owncloud.cta-observatory.org/remote.php/webdav/1dc.south/models-south.tar.gz --user=<user> --ask-password
-   $ wget https://owncloud.cta-observatory.org/remote.php/webdav/1dc.south/obs-south.tar.gz --user=<user> --ask-password
+   $ wget https://owncloud.cta-observatory.org/remote.php/webdav/1dc/gps.tar.gz --user=<user> --ask-password
+   $ wget https://owncloud.cta-observatory.org/remote.php/webdav/1dc/gc.tar.gz --user=<user> --ask-password
+   $ wget https://owncloud.cta-observatory.org/remote.php/webdav/1dc/egal.tar.gz --user=<user> --ask-password
+   $ wget https://owncloud.cta-observatory.org/remote.php/webdav/1dc/caldb.tar.gz --user=<user> --ask-password
+   $ wget https://owncloud.cta-observatory.org/remote.php/webdav/1dc/models.tar.gz --user=<user> --ask-password
 
 .. warning::
    ``<user>`` needs to be replaced by your CTA user name.
@@ -49,29 +44,28 @@ After downloading, uncompress the files at any place by typing
 
 .. code-block:: bash
 
-   $ tar xfvz gps-south.tar.gz
-   $ tar xfvz gc-south.tar.gz
-   $ tar xfvz egal-south.tar.gz
-   $ tar xfvz caldb-south.tar.gz
-   $ tar xfvz models-south.tar.gz
-   $ tar xfvz obs-south.tar.gz
+   $ tar xfvz gps.tar.gz
+   $ tar xfvz gc.tar.gz
+   $ tar xfvz egal.tar.gz
+   $ tar xfvz caldb.tar.gz
+   $ tar xfvz models.tar.gz
 
-You should now have a folder named ``1dc.south`` in your current working
+You should now have a folder named ``1dc`` in your current working
 directory with the following structure:
 
 .. code-block:: bash
 
-   1dc.south/
-   1dc.south/caldb
-   1dc.south/data
-   1dc.south/models
-   1dc.south/obs
+   1dc/
+   1dc/caldb
+   1dc/data
+   1dc/models
+   1dc/obs
 
 Before continuing, please set the following environment variables:
 
 .. code-block:: bash
 
-   $ export CTADATA=$PWD/1dc.south
+   $ export CTADATA=$PWD/1dc
    $ export CALDB=$CTADATA/caldb
 
 .. note::
diff --git a/doc/source/users/tutorials/1dc/getting_tools.rst b/doc/source/users/tutorials/1dc/getting_tools.rst
index 0bca36d..d117fad 100644
--- a/doc/source/users/tutorials/1dc/getting_tools.rst
+++ b/doc/source/users/tutorials/1dc/getting_tools.rst
@@ -6,14 +6,14 @@ Getting the analysis tools
 We recommend that you use ctools to analyse the data from the
 :ref:`first CTA Data Challenge <glossary_1dc>`.
 
-The reference version for the Data Challenge is ``ctools-1.3.0``.
-``ctools-1.3.0`` depends on ``gammalib-1.3.0``. You may either download
+The reference version for the Data Challenge is ``ctools-1.4.0``.
+``ctools-1.4.0`` depends on ``gammalib-1.4.0``. You may either download
 the source code for both packages or use a pre-compiled binary package for
 Mac OS X that includes all necessary code:
 
-* `Mac OS X binary package <http://cta.irap.omp.eu/ctools/releases/ctools/ctools-1.3.0-macosx10.7.dmg>`_ (Mac OS X 10.7+)
-* `GammaLib <http://cta.irap.omp.eu/ctools/releases/gammalib/gammalib-1.3.0.tar.gz>`_ source code tarball
-* `ctools <http://cta.irap.omp.eu/ctools/releases/ctools/ctools-1.3.0.tar.gz>`_ source code tarball
+* `Mac OS X binary package <http://cta.irap.omp.eu/ctools/releases/ctools/ctools-1.4.0-macosx10.7.dmg>`_ (Mac OS X 10.7+)
+* `GammaLib <http://cta.irap.omp.eu/ctools/releases/gammalib/gammalib-1.4.0.tar.gz>`_ source code tarball
+* `ctools <http://cta.irap.omp.eu/ctools/releases/ctools/ctools-1.4.0.tar.gz>`_ source code tarball
 
 After downloading, configure GammaLib and ctools as follows:
 
diff --git a/doc/source/users/tutorials/1dc/scope.rst b/doc/source/users/tutorials/1dc/scope.rst
index f4882fc..7ed4f85 100644
--- a/doc/source/users/tutorials/1dc/scope.rst
+++ b/doc/source/users/tutorials/1dc/scope.rst
@@ -36,11 +36,7 @@ were simulated from high-level
 that correspond to an ideal CTA with good and stable atmosphere and instrument
 conditions; only zenith angles of 20 degrees and 40 degrees were
 simulated.
-
-Data are provided for the baseline arrays. So far only data for the South array
-were simulated, data for the North array will be provided once the
-:ref:`instrument response functions <glossary_irf>`
-for the North array are available.
+Data are provided for the baseline arrays.
 
 Three Key Science Projects (KSPs) were simulated using realistic pointing
 patterns as defined in the CTA Science Case document: