|
土星卫星运动的现代理论和CCD观测定标归算
沈凯先 乔荣川 刘建荣
(中国科学院陕西天文台 临潼 710600)
(中国科学院国家天文台 北京 100012)
(中国科学院天文联合开放实验室上海基地 上海 200030)
摘 要
|
在目前土卫CCD观测中，采用亮卫星的理论值定标的方法已被广泛采用，然而如何尽可减小理论引入的误差对定标的影响仍是一个有待研究的问题。在最新研究中，采用3000多个最新的CCD观测对4个土卫现代理论作实算分析和比较，并由对归算结果的初步分析得出一些有价值的结论。
|
|
|
| 关键词 |
土星卫星 －
天体测量 －
CCD － 定标法 |
| 分类号 |
P185.58 |
Contemporary Theories of Motion for
Saturn's Major Satellites and CCD Calibration
Shen
Kaixian Qiao Rongchuan
Liu Jianrong
(Shannxi Astronomical observatory, The Chinese Academy of Science, Lintong,
Shannxi 710600)
(Chinese National Astronomical Research Center. United Laboratory for Optical
Astrometry,
The Chinese Academy of Science, Shanghai 200030)
Abstract
|
In the CCD technique in astrometry, the method of bright moons has
been in common use in calibration, which suffers from inducing the
systematic errors of the brighter moons ephemerides. Minimizing the
errors is a problem to be solved. In our recent research the more than
3000 CCD data and the 4 contemporary theories of saturnian satellites
were used in calculation for analysis and comparison, some valuable
conculations have been given. This paper show a brief description of
our study . |
| |
| Key words |
Saturn's
satellites － astrometry － CCD －
calibration methods |
|
|