diff --git a/predict.qth b/predict.qth
index ed25a79..c4d8f67 100644
--- a/predict.qth
+++ b/predict.qth
@@ -1,4 +1,4 @@
 raspberry
- << your latitude>>
- << your longitude >>
- <<sea level meters >>
+ change_latitude
+ change_longitude
+ 50
diff --git a/sun.py b/sun.py
index dbaa12f..ff40329 100755
--- a/sun.py
+++ b/sun.py
@@ -6,8 +6,8 @@ import sys
 date = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(int(sys.argv[1])+3*60*60))
 
 obs=ephem.Observer()
-obs.lat=''
-obs.long=''
+obs.lat='change_latitude'
+obs.long='change_longitude'
 obs.date = date
 
 sun = ephem.Sun(obs)