Amir Osman By Hank / December 30, 2025 / Comments Off on Amir Osman Amir Osman Geospatial Science and Human Security Division Oak Ridge National Laboratory Presentations (2026) Comparison of Two-Way Satellite Time and Frequency Transfer (TWSTFT) and PTP over long Distances May 6, 2026 • 10:45 am – 11:00 am •