AN ANALYSIS OF THE DATA DERIVED FROM THE FIRST YEAR OBSERVATIONS WITH THE PHOTOELECTRIC ASTROLABE TYPE II

A comparsion of the results obtained by the Photoelectric Astrolabe Type Ⅱ made in China and the Danjon Astrolabe, according to the same program for one year, has been made at the Shanghai Observatory. An analysis of the observations of these two instruments reveals that the accuracy of the Photoelectric Astrolabe Type Ⅱ is higher than the Danjon Astrolabe in all respects. In this paper, data of experimental observations have been used in the analysis of the influence of the short period fluctuation of temperature on the results of time determination and in the caiculation of the effect of the Lunar Tide terms on the time and latitude observations. The △α_δ and the △δ_δ type systematic errors of FK4 by the single instrument are given.