>> one minute and counting the sequencer will verify the three main engines are ready to start. is the booster joint heaters are being deactivated at this time. t-minus 48 seconds. we're transferring to orbiter internal power. "discovery" is running now on its three on-board fuel cells. t-minus 31 seconds. >> autosequence start. >> we have a go for autosequence start, "discovery's" on-board computers have primary control of the vehicle's primary functions. 20 seconds. the sound suppression water system has been activated protecting "discovery" and the launchpad from acoustical energy waves. go for main engine start. we have main engine start. 2, 1, booster ignition, and the