(U) A. Mission Description and Budget Item Justification

The Nuclear Detonation (NUDET) Detection System (NDS) consists of space, control, and user equipment segments. The space segment consists of NUDET detection sensors on the GPS satellites. The control segment consists of ground control hardware and software known as the Integrated Correlation and Display System (ICADS). The user equipment segment consists of the Ground NDS Terminals (GNT). The NDS provides a worldwide, highly survivable capability to detect, locate, and report any nuclear detonations in the earth's atmosphere or near space and in near real time. The NDS supports NUDET detection requirements for AFSPC (Integrated Tactical Warning and Attack Assessment [ITWAA]), USSTRATCOM (Nuclear Force Management), and AFTAC (Treaty Monitoring). NDS is classified Budget Activity 7, Operational Systems Development, because it is a post-Milestone 3 program.

(U) FY 1996 ($ in Thousands)

(U) $8,010	Continue ICADS and GNT development
(U) $924	Continue NDS Electomagnetic Pulse (EMP) Sensor on-orbit qualification
(U) $1,196	Continue system engineering and program management for ICADS, GNT and Advanced Radiation Detection Unit (ARDU)
(U) $1,934	Continue mission support requirements
(U) $12,064	Total

(U) FY 1997 ($ in Thousands)

(U) $10,898	Continue ICADS and GNT development
(U) $925	Continue EMP sensor on-orbit qualification
(U) $953	Continue system engineering and program management for ICADS, GNT and ARDU
(U) $242	Continue mission support requirements
(U) $13,018	Total

(U) FY 1998 ($ in Thousands)

(U) $11,941	Continue ICADS and GNT development
(U) $960	Continue EMP sensor on-orbit qualification
(U) $989	Continue system engineering and program management for ICADS, GNT and ARDU
(U) $255	Continue mission support requirements
(U) $14,145	Total

(U) FY 1999 ($ in Thousands)

(U) $12,709	Continue ICADS and GNT development
(U) $981	Continue EMP sensor on-orbit qualification
(U) $1,024	Continue system engineering and program management for ICADS, GNT and ARDU
(U) $268	Continue mission support requirements
(U) $14,982	Total

(U) Acquisition Strategy:

The NDS Acquisition Strategy is to develop and procure components to sustain the NDS capability for the GPS satellites.

(U) B. Program Change Summary ($ in Thousands)

	FY 1996	FY 1997	FY 1998	FY 1999
(U) Previous President's Budget	12,154	13,623	9,869	6,144
(U) Appropriated Value	13,277	13,623
(U) Adjustments to Appropriated Value
a. Cong Gen Reductions	- 260	-304
b. SBIR	- 728	-301
c. Omnibus or Other Above Threshold Reprogram
d. Below Threshold Reprogramming	-9
e. Rescision	-216
(U) Adjustments to Budget Years Since FY97 PB			4,276	8,838
(U) Current Budget Submit/President's Budget	12,064	13,018	14,145	14,982

(U) Change Summary Explanation:

Funding: Adjustments to FY98 (4,276) and FY99 (8,838) reflect a realignment of funds to more closely approximate programmatic requirements.

Schedule: No Changes

Technical: No Changes

(U) C. Other Program Funding Summary ($ in Thousands)

	FY 1996	FY 1997	FY 1998	FY 1999	FY 2000	FY 2001	FY 2002	FY 2003	To Compl	Total Cost
(U) Operations & Maintenance	5,570	5,265	5,731	5,962	6,219	7,003	9,252	8,620	69,311	Cont
(U) Missile Procurement	18,502	4,081	1,194	3,012	1,615	1,534	1,569	1,608	15,059	174,059
(U) Other Procurement	5,580	2,085	7,995	1,313	1,797	1,597	3,513	0	22,264	46,144

Related RDT&E:

(U) PE #305165F, NAVSTAR GPS (Space/Ground Segment)

(U) PE #604480F, GPS Block IIF

(U) PE #305911F, Defense Support Program

(U) D. Schedule Profile

FY 1996

FY 1997

FY 1998

FY 1999

	1	2	3	4	1	2	3	4	1	2	3	4	1	2	3	4
(U) ICADS Milestones & Program Events
(U) Build 5 System Req Review (SRR)					x
(U) Build 5 System Design Review (SDR)									x
(U) Build 5 Preliminary Design Review (PDR)													x
(U) Build 5 Critical Design Review (CDR)																x

(U) Build 4B Acceptance test (AT)

x

(U) GNT Milestones & Program Events

(U) Phase II GNT Delivery

x

(U) Phase I Initial OT&E

x

(U) Phase III PDR

x

(U) Phase III CDR

x

(U) A. Project Cost Breakdown ($ in Thousands)

	FY 1996	FY 1997	FY 1998	FY 1999
(U) Systems Engineering	989	1,013	1,277	1,065
(U) Software Development	6,016	6,472	6,578	8,460
(U) Software Upgrade	2,700	3,000	3,375	2,928
(U) Miscellaneous	1,247	1,387	1,534	1,331
(U) Technical Data	98	92	153	133
(U) Development Test & Evaluation	767	791	921	799
(U) Program Management Support	247	263	307	266
(U) Total	12,064	13,018	14,145	14,982

(U) B. Budget Acquisition History and Planning Information ($ in Thousands)