Multi Application Survivable Tether experiment, built by Tethers Unlimited Inc and Stanford University. MAST consisted of the TED (Tether Deployer) satellite, with a 1 km deployable multi-strand Hoytether; RALPH, a small end mass satellite; and between them, GADGET, an inspector 1U cubesat which could move along the tether. Before deployment the MAST package fit into a 0.3 m x 0.1 m module. Failed to deploy, but radio contact made.