diff --git a/prune.sh b/prune.sh
old mode 100644
new mode 100755
diff --git a/receive.sh b/receive.sh
old mode 100644
new mode 100755
index 8e743fc..811c2f3
--- a/receive.sh
+++ b/receive.sh
@@ -2,7 +2,8 @@
 
 
 ## import common lib
-. ~/common.sh
+. ~/.noaa.conf
+. "${NOAA_HOME}"/common.sh
 
 
 ## pass start timestamp and sun elevation
diff --git a/receive_iss.sh b/receive_iss.sh
old mode 100644
new mode 100755
diff --git a/schedule_iss.sh b/schedule_iss.sh
old mode 100644
new mode 100755