diff --git a/definitions/bufr/rdb_key.def b/definitions/bufr/rdb_key.def
index 1827e064e..915fa96f5 100644
--- a/definitions/bufr/rdb_key.def
+++ b/definitions/bufr/rdb_key.def
@@ -11,6 +11,13 @@ meta localMinute bits(keyData,27,6) : dump,long_type,no_copy;
 meta localSecond bits(keyData,33,6) : dump,long_type,no_copy;
 meta spare  bits(keyData,39,1) : no_copy; # 40 bits = 5 bytes
 
+alias mars.localYear=localYear;
+alias mars.localMonth=localMonth;
+alias mars.localDay=localDay;
+alias mars.localHour=localHour;
+alias mars.localMinute=localMinute;
+alias mars.localSecond=localSecond;
+
 meta localDateTime julian_date(localYear,localMonth,localDay,localHour,localMinute,localSecond) : no_copy;
 
 # isSatellite and other stuff moved to section 3
@@ -73,6 +80,9 @@ if (oldSubtype < 255 ) {
 alias ls.rdbType=rdbType;
 alias ls.rdbSubtype=rdbSubtype;
 
+alias mars.rdbType=rdbType;
+alias mars.rdbSubtype=rdbSubtype;
+
 #Data assimilation loop for purpose of Continous DA
 unsigned[1] daLoop;
 
diff --git a/definitions/bufr/section.3.def b/definitions/bufr/section.3.def
index daff31435..1bfeeecea 100644
--- a/definitions/bufr/section.3.def
+++ b/definitions/bufr/section.3.def
@@ -65,14 +65,19 @@ if (section2Present && bufrHeaderCentre==98 && section2Length==52) {
             oldSubtype==31) {
             meta ls.localNumberOfObservations bits(keySat,0,16) : dump,long_type,no_copy;
             meta ls.satelliteID bits(keySat,16,16) : dump,long_type,no_copy;
+            alias mars.satelliteID=satelliteID;
         } else {
             meta ls.localNumberOfObservations bits(keySat,0,8) : dump,long_type,no_copy;
             meta ls.satelliteID bits(keySat,8,16) : dump,long_type,no_copy;
+            alias mars.satelliteID=satelliteID;
         }
     } else {
         meta ls.localLatitude bits(keyData,72,25,-9000000,100000) : dump,no_copy;
         meta ls.localLongitude bits(keyData,40,26,-18000000,100000) : dump,no_copy;
         alias ls.ident=keyMore : dump,string_type,no_copy;
+
+        alias mars.localLatitude=localLatitude;
+        alias mars.localLongitude=localLongitude;
     }
 }