What project 676602 buys
This program continues funding for Space Data Network (SDN) in support of United States Space Force (USSF) Space Based Interceptors (SBI), the effort to develop a space-based weapon system to counter-Intercontinental Ballistic Missiles (ICBM) and Counter-hypersonic glide vehicles (HGV). In coordination with Army, Air Force, USNORTHCOM, and USSPACECOM, this funding will support the adoption of a commercially derived Radio Frequency (RF) payload and prototypes for integration onto multiple planes of space vehicles, and launch of the space vehicles. This constellation will be integrated into, and complementary, to the SDN-B. In addition to supporting the SBI program, the Space Data Network - Space Link will augment existing Space Data Network - Backbone users.
- Product Development
Project 676602 funding, FY2025–FY2031
Prior years are actuals, the budget year is the request, and the outyears are the FYDP plan. Estimate types are colored and never summed into one figure. Projects carry the full five-year plan; the activities inside them stop at the budget year.
| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 0.0 |
| FY2026 | Enacted | 0.0 |
| FY2027 | Request | 1,392.0 |
| FY2028 | Outyear | 1,398.6 |
| FY2029 | Outyear | 906.7 |
| FY2030 | Outyear | 452.8 |
| FY2031 | Outyear | 461.8 |
1 accomplishment / planned program
The R-2A exhibit — the only level of the budget that describes work that has not happened yet. Activities carry the prior, current and budget year only, no five-year plan. Coverage is partial across the corpus, so count activities, never total them.
FY2027 planned work Funds support the acceleration of the build-out of the Space Data Network to support the communication needs of the Space-Based Interceptor missile defense system.
FY2026 to FY2027 change FY 27 funding increase reflects the initial request of discretionary funds. FY 26 mandatory funds initiated this effort within the Golden Dome for America account.
FY2026 plans — current year 2026 efforts initiated within the mandatory Golden Dome for America account.