diff --git a/msg/SensorGps.msg b/msg/SensorGps.msg
index 2e94d174f3..1708f68092 100644
--- a/msg/SensorGps.msg
+++ b/msg/SensorGps.msg
@@ -73,6 +73,22 @@ uint32 SYSTEM_ERROR_CPU_OVERLOAD         = 32
 uint32 SYSTEM_ERROR_OUTPUT_CONGESTION    = 64
 uint32 system_error                      # General errors with the connected GPS receiver
 
+uint16 diff_age			# Differential correction age [seconds]. 0xFFFF = unavailable.
+
+uint8 ANTENNA_STATUS_UNKNOWN = 0
+uint8 ANTENNA_STATUS_INIT    = 1
+uint8 ANTENNA_STATUS_OK      = 2
+uint8 ANTENNA_STATUS_SHORT   = 3
+uint8 ANTENNA_STATUS_OPEN    = 4
+uint8 antenna_status		# Antenna supervisor state
+
+uint8 ANTENNA_POWER_UNKNOWN  = 0
+uint8 ANTENNA_POWER_OFF      = 1
+uint8 ANTENNA_POWER_ON       = 2
+uint8 antenna_power		# Antenna power status
+
+uint8 fix_quality		# Fix quality/confidence indicator [0-100]. 0 = no confidence, 100 = full confidence.
+
 float32 heading			# heading angle of XYZ body frame rel to NED. Set to NaN if not available and updated (used for dual antenna GPS), (rad, [-PI, PI])
 float32 heading_offset		# heading offset of dual antenna array in body frame. Set to NaN if not applicable. (rad, [-PI, PI])
 float32 heading_accuracy	# heading accuracy (rad, [0, 2PI])