Space Stats

Second stage failure.

Insufficient third stage thrust.

During unpowered coast in parking orbit the escape stage Block L lost stable attitude due to a loss of the the power circuit of the pneumatic valves of the attitude control and stabilisation system.

Power failure caused upper stage shutdown at T+340 seconds.

The launch demonstrated the danger of combining radioactive materials with 1960s rocketry. An upper stage guidance issue left Ablestar with insufficient velocity to make orbit. The upper stage and its payload were destroyed on reentry near Madagascar, spreading about a kilogram (2.2 lb) of plutonium-238 into the upper atmosphere.

At T+104 sec the tank draining of core Block A failed due to jamming of the servo-motored throttle and break down of the motor's circuit The launcher was destroyed on impact downrange from the pad.

Second stage exploded.

Centaur hydraulics failure.

Agena-B cut off too early. Partial Failure.

Transtage pressurisation failure caused premature shutdown.

Launch vehicle failed to orbit - unknown cause.

Launch fairing failure

Payload shroud did not separate.

National Reconnaissance Office’s first radar imaging satellite.