  Results of simultaneous measurements of beta-decay rate with the aid of
Ge(Li)-detectors performed at two laboratories 140km apart (INR RAS, Troitsk,
Co-60, and JINR, Dubna, Cs-137) during a period from 15.03.2000 till
10.04.2000, are presented. Regular deviations of the count rate of gamma-quanta
following the beta-decay of $\sim$ 0.7% (INR RAS, Co-60) and $\sim$ 0.2% (JINR,
Cs-137) from the statistical average, are observed. The analysis of extremum
deviations of gamma-quanta count rate shows that the set of directions of
tangents to the Earth's parallels of latitude at the extremum points of
trajectories of motion in the space of each laboratory clearly forms three
separate compact subsets of directions which agree, for two laboratories, to an
accuracy of $\pm10^\circ$. This phenomenon is shown not to be explained on the
basis of traditional notion. A possible explanation is suggested basing on the
hypothesis that there exists a new anisotropic interaction caused by the
cosmological vectorial potential \textbf{A}$_{\rm g}$, a new fundamental
constant having, according to the experiments carried out, the coordinate of
right ascension $\alpha \approx 285^\circ$ in the second equatorial system.
This is in agreement with earlier experiments.
