PyMsOfa:A Python Package for the Standards of Fundamental Astronomy(SOFA)Service  

作　　者：Jianghui Ji Dongjie Tan Chunhui Bao Xiumin Huang Shoucun Hu Yao Dong Su Wang 

机构地区：[1]CAS Key Laboratory of Planetary Sciences,Purple Mountain Observatory,Chinese Academy of Sciences,Nanjing 210023,China [2]School of Astronomy and Space Science,University of Science and Technology of China,Hefei 230026,China [3]CAS Center for Excellence in Comparative Planetology,Hefei 230026,China

出　　处：《Research in Astronomy and Astrophysics》2023年第12期184-189,共6页天文和天体物理学研究（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(NSFC,Grant Nos.12033010,11773081,12111530175);the Strategic Priority Research Program on Space Science of the Chinese Academy of Sciences(grant No.XDA 15020800);the Foundation of Minor Planets of the Purple Mountain Observatory。

摘　　要：The Standards of Fundamental Astronomy(SOFA)is a service provided by the International Astronomical Union that offers algorithms and software for astronomical calculations,which was released in two versions for FORTRAN77 and ANSI C,respectively.In this work,we implement the Python package PyMsOfa for SOFA service by three ways:(1)a Python wrapper package based on a foreign function library for Python(ctypes),(2)a Python wrapper package with the foreign function interface for Python calling C code(cffi)and(3)a Python package directly written in pure Python codes from SOFA subroutines.The package PyMsOfa has fully implemented 247 functions of the original SOFA routines released on 2023 October 11.In addition,PyMsOfa is also extensively examined,which is exactly consistent with those test examples given by the original SOFA.This Python package can be suitable to not only the astrometric detection of habitable planets from the Closeby Habitable Exoplanet Survey mission,but also for the frontier themes of black holes and dark matter related to astrometric calculations and other fields.The source codes are available via http://pypi.org/project/PyMsOfa/and https://github.com/CHES2023/PyMsOfa.

关 键 词：Astrometry and Celestial Mechanics-planets and satellites detection-planets and satellites terrestrial planets 

分 类 号：P1-0[天文地球—天文学]