Does the PX4 logs store the measured acceleration of the quad in NED earth fixed frame? There is a msg called vehicle_local_position that has fields ax,ay,az but all of them are coming 0 in the gazebo simulation. Link to the msg : https://github.com/PX4/Firmware/blob/master/msg/vehicle_local_position.msg
What is Velocity reset delta float32[2] delta_vxy in the vehicle_local_position.msg ?