unclassified - Air Force Financial Management & Comptroller

BUDGET ITEM JUSTIFICATION (EXHIBIT P-40)
UNCLASSIFIED
DATE:
FEBRUARY 2002
APPROP CODE/BA:
OPAF/ELECTRONICS & TELECOMMUNICATION EQUIPMENT
P-1 NOMENCLATURE:
NUDET DETECTION SYSTEM (NDS) SPACE
FY2001 FY2002 FY2003 FY2004 FY2005 FY2006 FY2007
QUANTITY
COST
(in Thousands)
$2,571 $8,411 $7,937 $12,666 $11,853 $12,289 $12,597
Description:
The United States Nuclear Detonation (NUDET) Detection System (USNDS) provides a worldwide, highly survivable capability to detect,
locate, and report nuclear detonations in the earth’s atmosphere or in near space in near real-time. USNDS supports NUDET detection
requirements for Air Force Space Command (AFSPC) {Integrated Tactical Warning and Attack Assessment (ITW/AA)}, US Strategic
Command (USSTRATCOM) (Nuclear Force Management), and the Air Force Technical Applications Center (AFTAC) (Treaty Monitoring).
USNDS consists of space and ground mission-processing segments. The space segment consists of NUDET detection sensors on both the
Global Positioning System (GPS)/Nuclear Detonation System (NDS) satellites and the Defense Support Program (DSP)/NDS satellites. The
ground mission processing segment consists of the Integrated Correlation and Display System (ICADS), Ground NDS Terminals (GNT), and
the DSP/NDS Advanced Radiation Detection Units (ARDU).
The GNT processes raw NDS sensor data and is the only system that provides survivable NUDET detection, analysis, and reporting to the
President and Secretary of Defense. The ICADS receives daily navigation update messages and NUDET detection mission data from the
satellites. Presently, the USNDS supports national level missions for US Space Command (USSPACECOM), USSTRATCOM, Air Combat
Command (ACC), AFTAC, President, Secretary of Defense, and Congress. NUDET reporting is required for the ITW/AA, Nuclear Force
Management, and nuclear test ban treaty monitoring missions.
ICADS UPGRADES: FY01 funding provided for continued ICADS upgrades to enhance compatibility with the new Block IIF GPS satellites
and specifically to process the detection data of the new Block IIF satellites. FY02 funding continues upgrades, including 20 Integrated Data
Denial (IDD) boxes and associated software that will be built for use by ICADS and GNT to decrypt IIF data. The Integrated Wide Area
Network (IWAN) will be upgraded with six additional terminals and respective software to aid in overall IIF software development and testing.
FY03 funding will provide for computer upgrades to the test bed and development system.
P-1 ITEM NO PAGE NO:
57
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UNCLASSIFIED
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