Discoverer 24

Discoverer 24, also known as Corona 9018A, was an American area survey optical reconnaissance satellite which was launched in 1961 but failed to achieve orbit.

A Thor DM-21 Agena-B rocket was used, flying from launch pad 75-3-4 at the Vandenberg Air Force Base.

[2] Thor performance was normal and cutoff and staging occurred on time, but the Agena suffered a massive power supply failure during ascent.

Since the power failure had caused loss of Agena telemetry data, it was unclear exactly what happened following staging or if engine start ever occurred.

It had a mass of 1,150 kilograms (2,540 lb),[4] and was equipped with a frame camera with a focal length of 76 millimetres (3.0 in), which had a maximum resolution of 140 metres (460 ft).