def?pconstants（）:
????global?emempmOmHemO2mNOmNcepsRe
	
????e?=?1.602e-19?#?in?Coulombs
????me?=?9.1093e-31
????mp?=?1.6726219e-27
????mO?=?16.*mp
????mHe?=?4.*mp
????mO2?=?2.*mO?
????mNO?=?2.*（7.+8.）*mp
????mN?=?14.*mp
????c?=?2.99792458e8
????eps?=?8.854e-12?#?permitivity?of?free?space	
????Re?=?6371200.0?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-05-12?08:29??raytracing-master\
?????文件?????1132295??2017-05-12?08:29??raytracing-master\DOCUMENTATION.pdf
?????目錄???????????0??2017-05-12?08:29??raytracing-master\HASELGROVE1957\
?????文件??????436288??2017-05-12?08:29??raytracing-master\HASELGROVE1957\DOCUMENTATION_HASELGROVE1957.pdf
?????文件?????????550??2017-05-12?08:29??raytracing-master\HASELGROVE1957\HOWTO.txt
?????文件???????35141??2017-05-12?08:29??raytracing-master\HASELGROVE1957\LICENSE
?????文件?????????260??2017-05-12?08:29??raytracing-master\HASELGROVE1957\README.txt
?????目錄???????????0??2017-05-12?08:29??raytracing-master\HASELGROVE1957\RESULTS\
?????文件???????98251??2017-05-12?08:29??raytracing-master\HASELGROVE1957\RESULTS\rayhasel1.png
?????文件???????39340??2017-05-12?08:29??raytracing-master\HASELGROVE1957\RESULTS\rayhasel2e_ne_3000000.0.png
?????文件??????145660??2017-05-12?08:29??raytracing-master\HASELGROVE1957\RESULTS\rayhasel2e_phi0.0_freq3000000.0.png
?????文件???????????8??2017-05-12?08:29??raytracing-master\HASELGROVE1957\RESULTS\results.txt
?????文件?????????157??2017-05-12?08:29??raytracing-master\HASELGROVE1957\ccgs.py
?????文件????????4719??2017-05-12?08:29??raytracing-master\HASELGROVE1957\rayhasel1.py
?????文件????????8345??2017-05-12?08:29??raytracing-master\HASELGROVE1957\rayhasel2e.py
?????文件?????????757??2017-05-12?08:29??raytracing-master\HOWTO.txt
?????目錄???????????0??2017-05-12?08:29??raytracing-master\IRI\
?????文件??????109667??2017-05-12?08:29??raytracing-master\IRI\README.docx
?????文件???????94478??2017-05-12?08:29??raytracing-master\IRI\ionosphere_iri_2012_24537_night.lst.png
?????文件???????92884??2017-05-12?08:29??raytracing-master\IRI\ionosphere_iri_2012_25962_day.lst.png
?????文件??????102496??2017-05-12?08:29??raytracing-master\IRI\ionosphere_iri_2012_28710_day_lat10dgr.lst.png
?????文件??????104745??2017-05-12?08:29??raytracing-master\IRI\ionosphere_iri_2012_28826_night_lat10dgr.lst.png
?????文件?????2337508??2017-05-12?08:29??raytracing-master\IRI\iri_2007_asr.pdf
?????文件???????17940??2017-05-12?08:29??raytracing-master\IRI\iri_2012_24537_night.lst
?????文件???????17940??2017-05-12?08:29??raytracing-master\IRI\iri_2012_25962_day.lst
?????文件???????92000??2017-05-12?08:29??raytracing-master\IRI\iri_2012_28710_day_lat10dgr.lst
?????文件???????92000??2017-05-12?08:29??raytracing-master\IRI\iri_2012_28826_night_lat10dgr.lst
?????文件????????4647??2017-05-12?08:29??raytracing-master\IRI\iriread_plot.py
?????目錄???????????0??2017-05-12?08:29??raytracing-master\IRI\old\
?????文件???????99833??2017-05-12?08:29??raytracing-master\IRI\old\ionosphere_iri_2012_22651_night.lst.png
?????文件??????100379??2017-05-12?08:29??raytracing-master\IRI\old\ionosphere_iri_2012_23520_day.lst.png
............此處省略23個文件信息