What project 2344 buys
The Precise Timing and Astrometry (PTA) project funds research and development of improvements for the Master Clock (MC) System, the DoW Time Transfer capability, the Earth Orientation System, and the Celestial Reference Frame (CRF) System. The MC System and Time Transfer provides precise time for use in modern military and National Technical Means (NTM) navigation, guidance, positioning, and tracking systems. The Earth Orientation System provides precise Earth Orientation Parameters (EOP) for use by the DoW and national civilian infrastructure to establish the specific orientation of the Earth and to provide input to the terrestrial reference frame. The Celestial Reference Frame system provides the basic data needed to generate the Celestial Reference Frame (CRF) which is the standard for calibrating all inertial navigation systems, satellite orbits, and Earth rotation determinations. Improvement to the MC System, Time Transfer, Earth Orientation, and Celestial Reference Frame Systems are needed to ensure new and upgraded DoW and NTM capabilities meet their performance requirements. The U.S. Naval Observatory (USNO) is responsible for coordinating Precise Time and Time Interval (PTTI) requirements and for maintaining a PTTI reference standard (astronomical and atomic) for use by all DoW, federal agencies, and related scientific laboratories. The Navy is also responsible for providing CRF data for military and NTM navigation, positioning, and guidance capabilities to all of DoW. CJCSI 6130.01H requires the USNO to meet or exceed present and future Timing, Earth Orientation, and Celestial Reference Frame requirements for the entire DoW via RDTE efforts. The PTA research and development efforts are focused on several areas relating to timing and time transfer: (1) Development of improved Global Positioning System (GPS) Timing Receivers in order to meet the precise timing requirements for the GPS III system; (2) Research and development of the capability of distributing timing signals via alternative methods to GPS time distribution; and (3) Research and development into Optical Clock technology in order to meet current and future DoW systems requirements.
- Product Development
- Support
- Management Services
Project 2344 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 | 6.0 |
| FY2026 | Enacted | 6.8 |
| FY2027 | Request | 45.2 |
| FY2028 | Outyear | 8.9 |
| FY2029 | Outyear | 9.0 |
| FY2030 | Outyear | 7.9 |
| FY2031 | Outyear | 8.1 |
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. Each describes FY2027 work in enough detail to have its own page; the rest are shown here in full. Coverage is partial across the corpus, so count activities, never total them.
* Optical Clock Development: Calcium Clock Full Operating Capability of hot beam clock and prototyping cold beam clock * Optical Lattice Clock Development: Full Operating Capability of first lattice clock * Multi Measurement System: validation and testing of operational implementation * Earth Orientation Combination and Prediction…
Read the FY2027 plan →Named performers on project 2344
Performers named in the R-3 exhibit under this project. Share is of the project's whole FY2027 R-3 total — the same denominator the program-element split uses, so the two read on one scale and will not sum to 100% when unnamed or government work is in the mix. Budget-justification contract funding, not obligations.