1980/12/29 by R. F. C. Vessot, M. W. Levine, E. M. Mattison +10 · 4 citations
Physics and Astronomy · Engineering · #Advanced Frequency and Time Standards #Geophysics and Sensor Technology #Pulsars and Gravitational Waves Research
paper · doi:10.1103/physrevlett.45.2081
openalex publication_date 1980/12/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/16
The results of a test of general relativity with use of a hydrogen-maser frequency standard in a spacecraft launched nearly vertically upward to 10 000 km are reported. The agreement of the observed relativistic frequency shift with prediction is at the 70\ifmmode×\else\texttimes\fi10^\ensuremath-6 level.