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Block IIIF satellites host a redesigned U.S. Nuclear Detonation Detection System (USNDS) capability that is both smaller and lighter than previous systems. [ 11 ] The USNDS is a worldwide system of space-based sensors and ground processing equipment designed to detect, identify, locate, characterize, and report nuclear detonations in the Earth ...
A nuclear detonation detection system (NDDS) is a device or a series of devices that are able to indicate, and pinpoint a nuclear explosion has occurred as well as the direction of the explosion. The main purpose of these devices or systems was to verify compliance of countries that signed nuclear treaties such as the Partial Test Ban treaty of ...
In the 1970s, the nuclear detection mission was taken over by the Defense Support Program (DSP) satellites. In the late 1980s, it was augmented by the Navstar Global Positioning System (GPS) satellites. The program is now called the Integrated Operational NuDet (Nuclear Detonation) Detection System .
A hydrazine propulsion system was used for orbital correction. The payload included two L-band GPS signals at 1575.42 MHz (L1) and 1227.60 MHz (L2). Each spacecraft carried two rubidium and two cesium clocks, as well as nuclear detonation detection sensors, leading to a mass of 1,660 kg (3,660 lb). [7]
The Cold War ended in 1991, but the looming threat of nuclear attack lives on with more than 14,900 nuclear weapons wielded by nine nations.. A terrorist-caused nuclear detonation is one of 15 ...
In the late 1940s, the United States began to develop the capability to detect atmospheric testing using air sampling; this system was able to detect the first Soviet test in 1949. [30] Over the next decade, this system was improved, and a network of seismic monitoring stations was established to detect underground tests. [ 30 ]
The name of the detector is a pun [3] which was bestowed upon it by Fred Reines, one of the scientists working on the project.The name is derived from the Hindi word "bhang", a locally grown variety of cannabis which is smoked or drunk to induce intoxicating effects, the joke being that one would have to be on drugs to believe the bhangmeter detectors would work properly.
The GE 477L Nuclear Detection and Reporting System (NUDETS, [1] NUDETS 477L, [2] Program 477L [citation needed]) was a Cold War "Nuclear Detonation and Radioactive Fall-out Reporting System" for the National Military Command System. [3] Planning/development began "by September 1, 1959, when NORAD had taken over responsibility from CONAD."