# Project 653171 — GPS Enterprise Integration

**Program element:** 1203269SF — GPS III Follow-On (GPS IIIF)  
**Project:** 653171  
**Component:** U.S. Space Force  
**Appropriation:** 3620F — RDT&E, Space Force  
**Budget Activity:** 5 — System Development & Demonstration  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/1203269SF/653171  
**Parent:** https://hitchintel.com/programs/1203269SF

## Summary

Project 653171 — GPS Enterprise Integration requests $64.5M in FY2027, 52% of the $123.8M requested for program element 1203269SF, up 4.8% on FY2026. 1 R-2A activity decomposes the request. SAIC is the largest named R-3 performer at $25.2M, 39% of the project's FY2027 R-3 total.

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 61.9 |
| FY2026 | Enacted | 61.6 |
| FY2027 | Request | 64.5 |
| FY2028 | Outyear | 67.0 |
| FY2029 | Outyear | 68.0 |
| FY2030 | Outyear | 69.3 |
| FY2031 | Outyear | 70.7 |

> Estimate types are not summed. This project is one leaf of PE 1203269SF; the PE total is the sum of its projects, never added to them.

## What project 653171 buys

The Global Positioning System (GPS) Program Office established and maintains the technical baseline and is responsible for the successful fielding of all the GPS Segments (space, control, and user). In order to successfully execute these responsibilities, GPS Enterprise Integrator (EI) creates an enterprise architecture, integrates segment products, verifies the enterprise requirements are adequately met, develops and implements various Systems Engineering documents, defines methods of verification, conducts integrated system test and test analysis, develops and manages the Enterprise technical baseline which reflect multiple stakeholder requirements; stakeholders include the Department of War (DoW), foreign governments, industry, and the general public (through four public interface specifications). Furthermore, GPS EI ensures Positioning, Navigation, and Timing (PNT) capabilities meet the warfighter's, civil agencies, commercial entities, international treaties, and over four billion global GPS users needs. Moreover, GPS EI is responsible for delivering a reliable PNT signal capability to military operators, the civil user community, and international partners. In addition, GPS EI validates the system performance in various mission threat scenarios during its development as well as provides in-depth technical expertise to enhance government control, oversight and program accountability. GPS EI is also responsible for all aspects of schedule and technical alignment across the GPS segments (space, control, and user equipment). In order to assist in achieving program milestones, GPS EI is responsible for technical baseline management, integration, synchronizing, testing, and verifying GPS III, GPS III Follow-on (IIIF), Operational Control System (OCS), Next Generation Operational Control System (OCX), Military GPS User Equipment (MGUE) Increment (Inc) 1 and Inc 2, and other PNT investment projects. Additionally, GPS EI is responsible for creating and managing plans that provide early exercise of the products under development, compatibility analysis, and inter-segment testing. The inter-segment tests are required to prove OCX interoperability with GPS III satellites and Modernized User Equipment. More importantly, it ensures backwards compatibility with legacy systems such as GPS Block II satellites, OCS, and legacy user equipment.

**R-3 lines of work:** Product Development; Test and Evaluation; Management Services.

## Named R-3 performers

| Performer | $M | Share of this project's FY2027 R-3 total |
|---|---|---|
| SAIC | 25.2 | 39% |

> Budget-justification contract funding, not obligations. Shares need not reach 100% — unnamed and government work is in the denominator.

## Activities (R-2A) — 1

| Activity | FY2025 | FY2026 | FY2027 | Move | Page |
|---|---|---|---|---|---|
| Enterprise Integration | 61.9 | 61.6 | 64.5 | +5% | [a0](https://hitchintel.com/programs/1203269SF/653171/a0) |

> Activities carry the prior, current and budget year only — no five-year plan. In the request year they partition this project exactly; in earlier years they can under-cover it.

### Enterprise Integration

Continue integrated, Government-led development and operational testing using operational assets, facilities and resources. Continue supporting prototype hardware, software, and critical component maturation, ultimately driving toward initial production readiness and deployment. Continue supporting vendor test activities to include field…

Full year-by-year narrative: https://hitchintel.com/programs/1203269SF/653171/a0

## What is NOT on this page

Congressional marks, the R-2 mission description and acquisition strategy, the industry vs government split of the whole request, and related program elements are recorded at **program-element** grain — an NDAA mark lands on a PE, never on a project. They are at https://hitchintel.com/programs/1203269SF.

## Source & machine access

- **Source:** FY2027 Department of the Air Force RDT&E Budget Justification, Exhibits R-2/R-2A/R-3, PE 1203269SF project 653171 (PB PB2027).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="1203269SF")`.

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