From 9aee71bf5476137eed940545d3d2398474de3d69 Mon Sep 17 00:00:00 2001
From: Paul Riseborough <p_riseborough@live.com.au>
Date: Sun, 2 Sep 2018 09:45:48 +1000
Subject: [PATCH] msg: Add antenna array heading offset to GPS message

---
 msg/vehicle_gps_position.msg | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/msg/vehicle_gps_position.msg b/msg/vehicle_gps_position.msg
index acb0c46a96..6d954aa634 100644
--- a/msg/vehicle_gps_position.msg
+++ b/msg/vehicle_gps_position.msg
@@ -32,4 +32,5 @@ uint64 time_utc_usec		# Timestamp (microseconds, UTC), this is the timestamp whi
 
 uint8 satellites_used		# Number of satellites used
 
-float32 heading		# heading in NED. Set to NaN if not set (used for dual antenna GPS), (rad, [-PI, PI])
+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])
-- 
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