# Nuc Detonation Det Sys (sensors) — Program Element 1203913SF

**Program element:** 1203913SF  
**Component:** U.S. Space Force  
**Appropriation:** 3620F — RDT&E, Space Force  
**Budget Activity:** 7 — Operational System Development  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/1203913SF

## Summary

U.S. Space Force funding ramps 18% to a $114.0M request in FY2027 — the program's peak, before stepping down 91% across the five-year plan. In the FY2027 defense authorization, the House funded it in full; the Senate funded it in full; House appropriators funded it in full. TASC leads the industry work, though an unusually large share flows to government labs and warfare centers.

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 83.4 |
| FY2026 | Enacted | 96.8 |
| FY2027 | Request | 114.0 |
| FY2028 | Outyear | 99.9 |
| FY2029 | Outyear | 71.9 |
| FY2030 | Outyear | 9.3 |
| FY2031 | Outyear | 9.8 |

> Estimate types are not summed — the profile mixes actuals, enacted law, the request, and outyear projections.

## Congressional marks (FY2027)

| Stage | Marked ($M) | Change ($M) |
|---|---|---|
| Request | 114.0 | — |
| House NDAA (HASC) | 114.0 | +0.0 |
| Senate NDAA (SASC) | 114.0 | +0.0 |
| House Approps (HAC-D) | 114.0 | +0.0 |

> FY2027 NDAA authorization marks, as of 2026-07-27. Not appropriations or final law.

## Projects (1)

| Project | Title | FY2025 actual | FY2026 enacted | FY2027 request | Move |
|---|---|---|---|---|---|
| 672808 | Nuc Detonation Det Sys (sensors) | 83.4 | 96.8 | 114.0 | +18% |

> Projects are the summable leaves: the program element total is their sum, never added to it.

### Project 672808 — Nuc Detonation Det Sys (sensors)

The Program Office is developing the Universal Ground NUDET Detection System (NDS) Terminal (UGNT) 7 modernization effort (Project 672808) for Guardians across Missile Warning and Missile Tracking (MW/MT) mission area. As a result, the Service will improve readiness and operational reach of existing force structure. The UGNT 7 modernization effort is the Survivable/Endurable (S/E) system capable of processing United States Nuclear Detonation (NUDET) data from the next-gen NDS payloads on Global Positioning System (GPS) IIIF. The receiver development portion is included as part of the Integrated Correlation and Display Systems (ICADS) 7 strategy. Portions of hardware and software will be replaced within the UGNT trailers. ICADS 7 software baseline will require updates and to be installed in UGNTs, enabling them to be Fully Mission Capable. These updates are required to download nuclear detonation data from GPS IIIF satellites enabling Department of War (DoW) and Combatant Command decision makers to have near-real time decision quality data for nuclear force management in support of the Nuclear Command, Control and Communication (NC3) mission set. The United States NUDET Detection System (USNDS) provides a near real-time worldwide, highly survivable/endurable capability to detect, locate, and report any nuclear detonation in the earth's atmosphere or in near space. USNDS supports NUDET detection requirements across five mission areas: Integrated Tactical Warning and Attack Assessment (ITW/AA), Nuclear Force Management (NFM), Space Control, Treaty Monitoring, and a classified mission. The USNDS program is jointly sponsored and funded by the DoW, through the Space Force, and the Department of Energy (DOE), through the National Nuclear Security Administration (NNSA) and its Nuclear Detonation Detection office (NA-22), respectively. NNSA/NA-22 supplies USNDS space sensors as Government Furnished Equipment to the Space Force's USNDS Program Office, which is responsible for all acquisition and Systems Engineering, Integration and Test activities on Space Vehicles (SVs), to include GPS and additional hosts, and their supporting ground control segments. The USSF directly funds the development of the USNDS ground segment (described below).

**Named R-3 performers** (share of this project's FY2027 R-3 total, so they need not reach 100%)**:** TASC (3.3, 2.9%).

| Activity (R-2A) | FY2025 | FY2026 | FY2027 |
|---|---|---|---|
| Integration with SBIRS S2E2 Mobile Ground Terminals (SMGTs) | 0.7 | 23.0 | 29.5 |
| ICADS 7 | 82.8 | 73.8 | 84.5 |

> R-2A activities carry the prior, current and budget year only — no five-year plan. Coverage is partial, so count them, never total them.

## Where the FY2027 request goes

| Category | Share | $M |
|---|---|---|
| Industry primes | 2.9% | 3.3 |
| Government labs & warfare centers | 89% | 101.2 |
| Other / unspecified | 8.3% | 9.5 |

**Top named industry performers:** TASC ($3.3M, 2.9%).

> R-3 exhibit contract funding, not USAspending obligations.

## Mission & acquisition strategy

The Program Office is developing the Universal Ground NUDET Detection System (NDS) Terminal (UGNT) 7 modernization effort (Project 672808) for Guardians across Missile Warning and Missile Tracking (MW/MT) mission area. As a result, the Service will improve readiness and operational reach of existing force structure. The UGNT 7 modernization effort is the Survivable/Endurable (S/E) system capable of processing United States Nuclear Detonation (NUDET) data from the next-gen NDS payloads on Global Positioning System (GPS) IIIF. The receiver development portion is included as part of the Integrated Correlation and Display Systems (ICADS) 7 strategy.

The USNDS Acquisition Strategy is to develop, integrate, field and sustain USNDS satellite sensors and USNDS ground data processing and distribution hardware and software as well as mission operational and technical program support to sustain the USNDS capability on GPS, DSP, Alternate Host, and SBIRS; funding is sent by Military Interdepartmental Purchase Request (MIPR) from DoW and DOE to Sandia, Los Alamos National Laboratories and other agencies on existing DOE/NNSA contracts. The ICADS 7 Acquisition Strategy was approved in September 2021 and the sole source prime contract awarded in June 2022. USNDS ICS funding for Ground Technology Program System of Systems will continue until UGNT is ready for delivery in Q3 FY 2025.

## Related program elements

- [0207573F — Prompt Diagnostics](https://hitchintel.com/programs/0207573F) (Air Force)
- [0305913F — NUDET Detection System (SPACE)](https://hitchintel.com/programs/0305913F) (Air Force)
- [1206442SF — Next Generation OPIR](https://hitchintel.com/programs/1206442SF) (Space Force)
- [1208053SF — Joint Tactical Ground Station](https://hitchintel.com/programs/1208053SF) (Space Force)

## Source & machine access

- **Source:** FY2027 Department of the Air Force RDT&E Budget Justification, Exhibits R-2/R-3, PE 1203913SF (PB PB2027); FY2027 NDAA committee marks (as of 2026-07-27).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="1203913SF")`.

*HitchAI is an independent intelligence service, not affiliated with the U.S. Department of Defense. Budget figures are requests/estimates, not obligations.*