Where is the topic "imu/data" defined?
I am running the Clearpath Husky ROS simulation (https://github.com/husky/husky) and need to change the header frame ID of the topic "imu/data" from "base_link" to add a transform prefix (overall, want it to be "husky_alpha/base_link), so that I can use navsat_transform from robot_localization. I've dug quite extensively in the launch, config, and source files, but can't find any place where I modify or alter that particular topic at all. Any advise on where to go in order to modify "imu/data" so that the header frame_id is different than the default of "base_link"?
Thanks!