Dr James Hanssen
U.S. Naval Observatory [USNO]
3450 Massachusetts Avenue NW
20392-5420 Washington D.C.
United States of America
Consultative Committee for Time and Frequency
Experts (online)
From 18 to 19 September 2025
Consultative Committee for Time and Frequency
Experts
From 14 to 22 November 2024
Consultative Committee for Time and Frequency
Experts
From 11 to 12 March 2021
CCTF Working Group on TAI
Participant
23 February 2026
CCTF Working Group on GNSS Time Transfer
Participant
17 September 2025
CCTF Working Group on Two-Way Satellite Time and Frequency Transfer
Delegates
From 20 to 27 May 2022