# Project 673943 — Space Domain Awareness Mesh Network (SDANet)

**Program element:** 1203940SF — Space Situation Awareness Operations  
**Project:** 673943  
**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/1203940SF/673943  
**Parent:** https://hitchintel.com/programs/1203940SF

## Summary

Project 673943 — Space Domain Awareness Mesh Network (SDANet) requests $89.0M in FY2027, 30% of the $294.9M requested for program element 1203940SF, up 88% on FY2026. 1 R-2A activity decomposes the request. Anduril is the largest named R-3 performer at $31.2M, 35% of the project's FY2027 R-3 total.

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 0.0 |
| FY2026 | Enacted | 47.3 |
| FY2027 | Request | 89.0 |
| FY2028 | Outyear | 39.7 |
| FY2029 | Outyear | 32.4 |
| FY2030 | Outyear | 33.3 |
| FY2031 | Outyear | 34.0 |

> Estimate types are not summed. This project is one leaf of PE 1203940SF; the PE total is the sum of its projects, never added to them.

## What project 673943 buys

The Space Domain Awareness Network effort is a Middle Tier Acquisition rapid fielding (MTF-RF) program of record. It is deploying a modern end-to-end data delivery capability via resilient, distributed mesh network capability for the Space Surveillance Network (SSN) and other associated sensor, C2 and data nodes. SDANet supports existing capabilities through improvements to end-to-end architecture and data delivery efficiency and resiliency to enable modern C2 and Artificial Intelligence/Machine Learning (Al/ML) initiatives. SDANet enables Sensor-to-Sensor, Sensor-to-C2 systems, and Sensor-to-Unified Data Library (UDL} end-to-end data flows revolutionizing the traditional vertical Sensor-to-C2 data flows to incorporate the ability to send and receive data laterally enabling space domain operations. Through a Mission Data Integration (MDI) initiative (Project Lighthouse), SDANet seeks to enable command-and-control (C2) through machine-to-machine interface between the Missile Defense Agency (MDA) and SDA sensors to allow USSPACECOM to deter aggression, defend national assets, and when necessary, defeat threats.

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

## Named R-3 performers

| Performer | $M | Share of this project's FY2027 R-3 total |
|---|---|---|
| Anduril | 31.2 | 35% |
| Starshield | 3.6 | 4.1% |
| Booz Allen | 0.7 | 0.8% |

> 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 |
|---|---|---|---|---|---|
| Space Domain Awareness Network (SDANet) | 0.0 | 47.3 | 89.0 | +88% | [a0](https://hitchintel.com/programs/1203940SF/673943/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 Domain Awareness Network (SDANet)

-Implement machine-to-machine tasking to improve Space Surveillance Network (SSN) responsiveness and close kill chains. -Ingest and disseminate new Space messages to provide rich data, observations and other data sets required for modern C2 functionality. -Deploy Cloud based nodes to provide a secondary direct path to Unified Data…

Full year-by-year narrative: https://hitchintel.com/programs/1203940SF/673943/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/1203940SF.

## Source & machine access

- **Source:** FY2027 Department of the Air Force RDT&E Budget Justification, Exhibits R-2/R-2A/R-3, PE 1203940SF project 673943 (PB PB2027).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="1203940SF")`.

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