This was the twenty-sixth flight of Invocon hardware on the Space Shuttle. During STS-120 mission, the Discovery crew delivered the Harmony module to the International Space Station. Two IVC systems were present on the orbiter.

Below is a list of the IVC systems that were present on Discovery during the mission. The EWB MicroTAU-WLE system is the IVC system used for detecting impacts on the leading edge of the Orbiter's wing.

Enhanced Wide-Band Micro-Miniature Tri-axial Accelerometer Unit

This is the seventh flight of the EWB MicroTAU system, a high-speed data acquisition network for dynamic acceleration sensing and recording. On STS-120, 44 units were used to detect, locate, and characterize impacts on the RCC panels on the wing leading edge.

Click here for more information about the EWB-MicroTAU system.

Micro-Miniature Strain Gauge Unit

Twelve Invocon MicroSGU™ sensors were installed in the engine compartment to measure the stresses imparted to the trunnion arms on the Space Shuttle Main Engines (SSMEs).

Click here for more information about the MicroSGU system.