Printed from https://fiscalreceipts.com/program/MUOS00/ — data as of July 28, 2026. Every figure is citation-backed; see the page online for per-number provenance.
Mobile User Objective System
Budget Figures
FY2026 award data is a partial year — USASpending awards are reported on a rolling basis and the fiscal year does not close until September 30. why partial FY2026 data? →
- FY24
- $111.0M
- FY26
- $49.0M
● actuals (line) · ○ enacted · ◇ request — gaps are editions the program is absent from, never interpolated.
| Series | FY22 | FY23 | FY24 | FY25 | FY26 |
|---|---|---|---|---|---|
| Actuals | $45.4M | $46.8M | $111.0M | ||
| Enacted | – | $46.8M | $101.1M | $64.7M | |
| Request | – | – | $101.1M | $51.6M | $49.0M |
blank = series not published for this year; – = absent from that edition.
Asked vs spent: the PB2024 book requested $101.1M for FY2024; the PB2026 book reports $111.0M actually spent — $9.90M above the request.
Program Lineage
No predecessor/successor lineage was recorded for this program element — no FY-to-FY transfer into or out of this line was stated in the ingested J-books, and none was inferred from the program structure.
Description
Description — Mobile User Objective System
The Mobile User Objective System (MUOS) provides a worldwide, multi-service population of mobile and fixed-site terminal users with ultra-high frequency (UHF), narrowband, and beyond line-of-sight satellite communications (SATCOM). MUOS significantly increases performance and capacity in support of critical Combatant Command SATCOM priorities. MUOS is the replacement system for the UHF Follow-on (UFO) system, which is currently beyond its design life. MUOS consists of Space, Ground, and User Entry Segments. MUOS reached full operational capability October 2019. The Space Segment consists of five geosynchronous satellites to support a four satellite constellation over the intended service life, and provides both a legacy UHF payload, which is backward compatible with UFO, and a Wideband Code Division Multiple Access (WCDMA) payload, which provides cellular-like capability. The User Entry Segment consists of the MUOS waveform that is ultimately integrated into MUOS- capable terminals. The cost for MUOS Ground Segment upgrades varies depending on the complexity of software defects being addressed and unique configuration of hardware and software requirements being fielded at each of the six MUOS ground sites within each given year. The MUOS Ground Segment upgrades address cybersecurity and lifecycle management issues at each of the six MUOS ground sites. The Ground Segment or System consists of four world-wide Radio Access Facilities (RAFs) (Wahiawa, Hawaii; Northwest Chesapeake, Virginia; Niscemi, Italy; and Geraldton, Australia) and two Satellite Control Facilities (Port Hueneme, California, and Schriever Space Force Base (SFB), Colorado). Each RAF includes three 60 ft. antennas and over 50 equipment racks which house a total of 5,000 major hardware components and 250 software applications across the MUOS Program. The RAF in Hawaii includes a Network Management Facility (NMF). The RAFs in Hawaii and Virginia each include a Switching Facility (SF). All four RAFs and two Satellite Control Facilities are considered Ground Sites. Beginning in FY 2017, the program's focus has been upgrading ground sites to address ongoing cybersecurity threats, hardware and software obsolescence, and operational deficiencies. The program awarded the follow-on ground sustainment and modernization contract in FY 2025. Funding for this exhibit is contained in PE 1203109SF. FY 2025 Full-Year Continuing Appropriations and Extensions Act included additional funding for Mawar Typhoon Disaster Relief.
Justification
Justification — Mobile User Objective System
The FY 2026 funding will address obsolescence and cybersecurity vulnerabilities within the MUOS Ground Segment. Emerging cybersecurity threats, increasing cybersecurity requirements, and the evolution of denial-of-service threats against DoD systems have made it imperative for the MUOS ground system to keep pace. Funding will be used to procure Ground System updates for each of the six ground sites in each fiscal year through the Future Year Defense Program (FYDP) to correct hardware and software deficiencies. The ground system updates address hardware/software defect resolution and hardware degradation. The hardware/software updates are installed at each ground site as part of the MUOS operational end item requirements; ground system defect resolution includes associated engineering, integration, test, and delivery efforts to address cybersecurity vulnerabilities, and corrects issues to ensure readiness levels support the warfighter's narrowband SATCOM requirements. These Ground System updates will address hardware degradation; obsolete items to be replaced include Redhat/Linux Operating System (OS)-based components and GPS-based Timing and Frequency Distribution System. FY 2026 funding will allow the program to rapidly respond to implement system resiliency and situational awareness necessary to operate through the contested space domain. Activities may include, but are not limited to, program office support, studies, technical analysis, and activities that may leverage commercial, U.S. Government partnership, and international opportunities to respond to existing and emerging adversarial threats with speed and agility, etc
Budget Line Items(workbook-cited)
Exhibit P-1
| Account | Org | Type | Amount |
|---|---|---|---|
| Procurement, Space Force | F | FY24 Actuals | $111.0M |
| Procurement, Space Force | F | FY25 Enacted | $64.7M |
| Procurement, Space Force | F | FY26 Disc. Request | $49.0M |
| Procurement, Space Force | F | FY26 Total | $49.0M |
Budget Details(R-2/P-40 facts)
| Project | All Prior Years | FY24 Actuals | FY25 Total | FY26 Base | FY26 Request |
|---|---|---|---|---|---|
| Program Element | $101.6M | $111.0M | $64.7M | $49.0M | $49.0M |
No follow-the-dollar view — this program's awards haven't been crosswalked at high confidence (flows cover 17 of 1741 programs). why coverage is partial? →
Awards
No awards are linked to this program element at high confidence — the budget→award crosswalk only asserts links it can defend, and this line has none yet.
Lobbying Mentions
No Senate LDA lobbying filing in the tracked data mentions this program element by code or alias.
No research dossier for this program — dossiers cover 50 of 1741 programs, the largest fully J-book-detailed lines by FY2026 requested dollars. why no dossier here? →