Converted from a novatel INSCOV message.
http://docs.ros.org/api/novatel_msgs/html/msg/INSCOV.html
More information on page 140 of SPAN® on OEM6® Firmware Reference Manual
https://www.novatel.com/assets/Documents/Manuals/OM-20000144UM.pdf

pos11
pos12
pos13
pos21
pos22
pos23
pos31
pos32
pos33
att11
att12
att13
att21
att22
att23
att31
att32
att33
vel11
vel12
vel13
vel21
vel22
vel23
vel31
vel32
vel33
