What the FY2027 request buys
Verbatim from the R-2A exhibit for project 2344 of PE 0603207N. This is the budget justification's own description of work that has not happened yet — the one thing no other level of the budget carries.
* 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 Optimal Estimation: spline research and development * Cislunar and solar satellite ephemeris: Full Operating Capability * Earth Orientation Monitoring of Foreign GNSS: Full Operating Capability * Next Generation Secure Time Transfer v2: testing for additional security and researching 1-way, 2-way capabilities * Fund post-doctoral program to support basic research in Precise Time and Astrometry for Optical Clock Development, Optical/Radio offsets in Active Galactic Nuclei (AGN), and next generation Infrared catalog development * Optical Signal Distro Network initial research and development * Improved AAM/OAM: integration of AAM/OAM models * High Resolution Subarray Antenna initial research and development * Optical Time Transfer initial research and development * 1-way 2-way time transfer initial research and development
Increase of $38.438M from FY 2026 to FY 2027 results from development of High Resolution Subarray Antenna, optical time transfer development, and 1-way 2-way time transfer development.
FY2026: the year under way
Prior-year accomplishments and current-year plans from the same exhibit. Context for the FY2027 plan, not a series — an activity partitions its project exactly in the request year, but can under-cover it in earlier years.
*Time Transfer: Fiber (Advanced Time and Frequency Transfer) and Two-Way time transfer (Next Generation Secure Time Transfer v1) development --Full Operating Capability * Optical Clock Development: Calcium Clock Initial Operating Capability * Optical Lattice Clock Development Initial Operating Capability * Multi-Measurement System: Initial Operating Capability * Earth Orientation Combination and Prediction Optimal Estimation Investigation: Validate R&D code implementation and test * Cislunar and solar satellite ephemeris research and development * Earth Orientation Monitoring of Foreign GNSS experiment: Begin validation operational implementation * Fund post-doctoral program to support basic research in Precise Time and Astrometry for Optical Clock Development, Optical/Radio offsets in Active Galactic Nuclei (AGN), and next generation Infrared catalog development * Improved AAM/OAM: initial research and development
Three years, and no five-year plan
An R-2A activity publishes the prior year, the current year and the budget year. The FYDP outyears exist at project and program-element level and are deliberately absent here rather than inferred. Estimate types are colored and never summed into one figure.
| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 6.0 |
| FY2026 | Enacted | 6.8 |
| FY2027 | Request | 45.2 |
This activity is 100% of project 2344's FY2027 request and 59% of PE 0603207N's. In the request year the activities under a project sum to it exactly; in the current year they under-cover it in about 9% of cases, so an activity's delta can legitimately exceed its parent's and the two must not be compared row to row.
1 activity in project 2344
Every R-2A line of this project, largest FY2027 request first. Linked where the activity has enough of its own narrative to carry a page; the rest are shown in full on the project page.