CSAO和VS NIIFTRI等高仪国际合作观测精度的初步分析  

Primary Analisys of Data Obtained with PHA I in Irkutsk on International Cooperation between CSAO and VS NIIFTRI

作　　者：徐家岩[1] 刘进梅 陈洪卿 张志武 ZalutskyV.T. RashortinS.Y. YmeliyanovV.A. KaplenkoV.V. 

机构地区：[1]中国科学院陕西天文台,陕西省临潼710600 [2]俄罗斯东西伯利亚物理技术和无线电测量研究所

出　　处：《陕西天文台台刊》1997年第6期66-70,共5页Publications of The Shaanxi Astronomical Observatiory

基　　金：国家自然科学基金;中国科学院基础局资助;国际合作局资助;天文委员会资助;陕西天文台台长基金

摘　　要：初步分析了PHAI在伊尔库茨克近14个月中观测的832组星的精度。PHAI创造了它历史上最多的观测星组数和最高的观测精度，1996年在俄罗斯地球自转参数服务系统中获取15％的权重，约为该系统平均仪器权重的3倍多。The data containing 832 groups of stars observed in 242 clear nights during nearly 14months (from Nov. 3, 1995 to Dec. 24, 1996) in VS NIIFTRl astronomical observingbase has been analysed primarily. The results have shown that PHA I has set up a newrecord in its history: the largest number of groups observed in 14 months (832 groups),and the highest precision (averaging RMS over 832 groups is 0. 230', equivalent to RMSof 0. 192' at Z= 30°). Considering the averaging temperature being - 8. 5℃ during observing those 832 groups, this precision is very high. Also the accuracy for those 832groups is very good, so PHA I has got about 15 percent of the weights in Russian EOPservice system in 1996. The instrument itself is very stable, so the zenith distance of thealmucantar in particular benefits the determination of star declinations quite a lot. The primary catalogue of the PHA I will be published soon after the first program ends. Therewill be no the blind zone in the declination determination in the catalogue while it exists inalm0st a1l astro]abe catalogues.

关 键 词：等高仪 星表 观测精度 

分 类 号：P12[天文地球—天体测量] P114.4[天文地球—天文学]