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(Redirected from NOSS)
Series of signals-intelligence satellites of the U.S. Navy
"NOSS" redirects here. For other uses, see Noss (disambiguation).
"Intruder (satellite)" redirects here. For the program originally rumored to be called Intruder, see Integrated Overhead SIGINT Architecture.
The NOSS 3-4 duo (2007-027A and C) crossing through the Pleiades. Movement in this 10-second exposure is from top to bottom, the A object is leading.A NOSS satellite trio passes the Moon.NOSS 3-3 duo passing by Polaris (bright star at the bottom). Movement in this 12.3-seconds exposure is from upper-left to bottom-right; the A object is leading. 6 February 2016, 18:52 (UTC+2), Kyiv.
The Naval Ocean Surveillance System (NOSS) is a series of signals-intelligencesatellites that have conducted electronic signals intelligence for the U.S. Navy since the early 1970s. The first series of satellites were codenamed "White Cloud" or "PARCAE", while second- and third-generation satellites have used the codenames "Ranger" and "Intruder". According to the Union of Concerned Scientists in 2023, the system may be called the Space-Based Wide Area Surveillance System (SB-WASS).
* One satellite from each third generation pair is officially catalogued as debris.
data from ,
Cost
The costs of the NOSS satellites (excluding costs for the launch vehicle), which were destroyed in a Titan IV launch failure in 1993, were US$800 million (inflation adjusted US$ 1.7 billion in 2024).
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United States reconnaissance satellites