time observatory
2.THE TIDAL EFFECT ON THE TIME AND LATITUDE OBSERVATION OF SHANGHAI OBSERVATORY
3.The experimental results showed the time comparison precision was about ±8ns and the time comparison accuracy was about±100ns. At the same time we established the link between Hong Jiao ground station and Shaanxi Observatory by the Loran— C/9970 and BPL time signal transmitted by Shaanxi Observatory.
4.The results of the monitoring of the BPL long wave time signals at the Yunnan Observatory are given in this paper.
5.Greenwich Mean Time would become an "irrelevance" if proposals to redefine how time is measured are accepted, an historian at the Royal Observatory Greenwich, UK, has warned.
6.Making the compari- son between the time synchronism with TV and the method of Loran-C, the main time relay (5853.9~(μs)) was determined within distance from our observatory to the CCTV.
7.Based on the theory and practical method of time difference system with dual mixer presented by Allan, this paper analysed emphatically an 100MHz time difference system with dual mixer which was established at Shanghai Observatory.
8.お?bservational results of the partial solar eclipse on March 9,1997 by using the synchronous observational system with high time resolution at 4 bands in Yunnan Observatory are presented in this paper. The process of electron acceleration in the slowly variable source in the corona are presumed by variable rate of radio fast fluctuations during eclipsing and appearing sunspots. The accelerations may contribute to the enhancement of the rate of radio fast fluctuations.
9.At 2 pm, August 30 (local time), when I was viewing the photos taken by FMO project (Kitt Peak Observatory, US), I spotted an FMO and report it at once.
10.The time comparison via TV broadcasteing Satellite and BPL between wulumuqi satellite tracking station and Shoanxi Astronomical Observatory was carried out from 3 Ap1, 1984 to 22 Ap1, 1984 The standard deviation of two methods determining clock difference is about 3.5μs.
