diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000000000000000000000000000000000000..69667e50b5748e25f9e47d00d63c607ccdd3b2a3
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+++ b/LICENSE.txt
@@ -0,0 +1,14 @@
+Copyright 2020 Stichting Nederlandse Wetenschappelijk Onderzoek Instituten,
+               ASTRON Netherlands Institute for Radio Astronomy
+
+Licensed under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.