The baseline analysis of the first test observation between Japan and U.S. stations by using comprehensive K-3 VLBI system

The RRL has developed a high-precision VLBI (called the K-3 system) which is compatible with NASA's Mark-III system. On November 4, 1983, the first VLBI experiment on the trans-Pacific baseline was performed in close cooperation with NASA. Fringes were obtained which showed that the performance of K-3 was comparable to that of the Mark-III system. It is noted that the results are useful for calculating the baseline length with an accuracy of several decimeters.