# Project 65A006 — Space Based SDA

**Program element:** 1206425SF — Space Situation Awareness Systems  
**Project:** 65A006  
**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/1206425SF/65A006  
**Parent:** https://hitchintel.com/programs/1206425SF

## Summary

Project 65A006 — Space Based SDA requests $148.8M in FY2027, 11% of the $1.32B requested for program element 1206425SF — a restart: funded in FY2025, zeroed in FY2026, funded again now. 1 R-2A activity decomposes the request, 1 restarted this cycle.

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 169.1 |
| FY2026 | Enacted | 0.0 |
| FY2027 | Request | 148.8 |
| FY2028 | Outyear | 43.5 |
| FY2029 | Outyear | 30.1 |
| FY2030 | Outyear | 30.7 |
| FY2031 | Outyear | 31.3 |

> Estimate types are not summed. This project is one leaf of PE 1206425SF; the PE total is the sum of its projects, never added to them.

## What project 65A006 buys

Space Domain Awareness (SDA) is one of five core competencies of the Space Force and is the effective identification, characterization, and understanding of any factor, passive or active, associated with the space domain that could affect space operations and thereby impact the security, safety, economy, or environment of our nation. As the foundation for space control, SDA encompasses surveillance of all space objects and activities; detailed surveillance of specific space assets; monitoring space environmental conditions; monitoring cooperative space assets; gathering indications and warning on adversary space operations; and conducting integrated command, control, communications, processing, analysis, dissemination, and archiving activities. This programs falls within the Space Domain Awareness (SDA) mission area which provides the space-based architecture required to detect, track, catalogue, and identify objects and activities in the space domain. As the foundation for space control, SDA encompasses surveillance of all space objects and activities; detailed surveillance of specific space assets; monitoring space environmental conditions; monitoring cooperative space assets; gathering indications and warning on adversary space operations; and conducting integrated command, control, communications, processing, analysis, dissemination, and archiving activities. Program interdependencies include: SC&C Software Pilot Program (1208248SF); Space Defense Interface Network (1203904SF); Space Situational Awareness Operations (1203940SF); Space Situational Awareness Systems (1206425SF)”Space Based SDA will develop and deliver capabilities and prototypes to provide space object surveillance and reconnaissance from space. The United States Space Force (USSF) and National Reconnaissance Office (NRO) have partnered on the Space Based SDA program to meet overlapping requirements through the SILENTBARKER program. The program is also developing prototypes to deliver additional space surveillance capabilities to meet emerging threats. Space Based SDA enables timely detection and custody of on-orbit threats to protect U.S. High Value Assets in support of the National Defense Strategy. Space Based SDA requirements are based on both the Statement of Capabilities and the current 2022 SDA Initial Capabilities Document, which is focused on protecting High Value Assets.

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

## Activities (R-2A) — 1

| Activity | FY2025 | FY2026 | FY2027 | Move | Page |
|---|---|---|---|---|---|
| Space-Based Space Domain Awareness (SDA) | 169.1 | 0.0 | 148.8 | restart | [a0](https://hitchintel.com/programs/1206425SF/65A006/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.

### Space-Based Space Domain Awareness (SDA) — RESTART

Key planned efforts include: SILENTBARKER-B: Continue development for the next increment of GEO-based SDA capabilities. Continue studies and development for future USSF SDA GEO space-based SDA capabilities leveraging commercial/DoW product lines. Support on-going mission data processing and dissemination efforts across SILENTBARKER and…

Full year-by-year narrative: https://hitchintel.com/programs/1206425SF/65A006/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/1206425SF.

## Source & machine access

- **Source:** FY2027 Department of the Air Force RDT&E Budget Justification, Exhibits R-2/R-2A/R-3, PE 1206425SF project 65A006 (PB PB2027).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="1206425SF")`.

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