The Titan was originally planned for launch last June. But brush fires around the pad caused weeks of delay, followed by technical troubles with the rocket's steering equipment. More problems followed in the fairing covering the spy satellite. Engineers had to clean the spacecraft, leading to more delays. Then, the rocket was delayed from launch two weeks ago when lightning struck near the launch pad in Florida, requiring new checks of the circuitry on the complex. While technicians reviewed the booster, a leak was discovered in one of the steering systems for one strap-on solid motor. A change-out was ordered, causing the last set of delays. Weather also had its hand in the months spent waiting on the pad.

The Titan IVA launched Friday evening was the last using less power solid fuel motors. All future Titan launches will use the advanced Titan IVB design, which began lifting selected payloads last January from Vandenberg Air Base in California. A Titan IVB was also used in the launch of the Cassini Saturn space probe.