What program specifically detected nuclear explosions?

The Vela Hotel nuclear detection Program was specifically designed to detect nuclear explosions utilizing a network of satellites equipped with sensors. These sensors were capable of identifying the characteristic signatures of a nuclear detonation, including the intense gamma rays and other radiation produced by such events. The program played a crucial role during the Cold War, allowing for the monitoring of potential nuclear tests conducted by other nations, thereby contributing to international security and non-proliferation efforts.

The other programs mentioned involve broader themes of nuclear monitoring and international agreements but do not specifically pertain to the detection of nuclear explosions in the same direct manner as the Vela Hotel program. For example, the Comprehensive Nuclear-Test-Ban Treaty focuses on prohibiting all nuclear explosions but does not include the mechanisms for real-time detection like Vela Hotel does.