David Bishop wrote: >>> One thing that I need is a good satellite elements digester.... >>1) Read a free formatted file with elements in it, and pars them out >>2) Save only the most current elements to a file with JUST elements in it. >>3) Disregard elements which are over X months old >>4) Sort the elements in the output file by NORAD # >>5) Recognize Ted Molczan's element files, keeps the identifier line >>6) Check QUICKSAT.MAG, if there is no entry for it, and .. add it. >>7) Fix any checksum errors it finds. >>If anybody has something better I am all ears. > I need one more step, and definitely one less ! If there is a checksum error, I certainly don't want to sweep it under the carpet ! More often than not (unless it is an amateur generated elset) an error is caused my a discrepancy at another place in the elset, so these should be written to a separate file for scrutiny, before being trusted. And I don't want to throw away any elsets - they can be needed for for analysis of photographs, observations by others, and decays / maneouvres / sudden accelerations. All old elsets (preferrably without duplicates) should be written to a history file. I will write a utility for this, using CA-Realizer for Windows. CA-Realizer programs can be written for royalty-free distribution, yet to allow run-time additions and modifications of source code, and there is a separate text-book for users that can't (or won't) buy the development package. ------------------------------------------------------------ -- b_gimle@algonet.se +46-8-7428086 (home) -- -- 59.22371 N, 18.22857 E AND member of : -- -- http://www.algonet.se/~b_gimle seesat-l / seesat-d -- -- bjorn@tt-tech.se +46-8-59095789 (office)-- ------------------------------------------------------------ Join us at Eurosom 2, the Satellite Observers Meeting: Oct.19/20 ! Ghent, Belgium http://www.rzg.mpg.de/~bdp/eurosom.html ---