+struct aostate {
+ struct aodata data;
+
+ /* derived data */
+
+ struct aodata prev_data;
+
+ double report_time;
+
+ gboolean ascent; /* going up? */
+
+ int ground_altitude;
+ int height;
+ double speed;
+ double acceleration;
+ double battery;
+ double temperature;
+ double main_sense;
+ double drogue_sense;
+ double baro_speed;
+
+ int max_height;
+ double max_acceleration;
+ double max_speed;
+
+ double lat;
+ double lon;
+ int gps_valid;
+
+ double pad_lat;
+ double pad_lon;
+ double pad_alt;
+ double pad_lat_total;
+ double pad_lon_total;
+ double pad_alt_total;
+ int npad;
+ int prev_npad;
+
+ double distance;
+ double bearing;
+ int gps_height;
+
+ int speak_tick;
+ int speak_altitude;
+};
+
+extern struct aostate aostate;
+
+/* GPS is 'stable' when we've seen at least this many samples */
+#define MIN_PAD_SAMPLES 10
+