Version:
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2012-10-04: Initial checkin to revision 2796
2013-01-13: Added idp.txt with data from Pepin et al. (2011), ApJ. This data are not in the presolar grain databse, make sure that you understand the paper before using them! To me it seems like this data are actually crap (ask me why if you're interested) but we want to put them in Pavel's nova paper
2013-01-29: Updated SiC-All.txt to newest update for C and U/C grains including sulfur measurements
2013-03-12: Renamed U/C grains in SiC-All.txt to C grains
2014-05-27: Updated Excel files with the most recent files from the website. Grain.py only uses Excel now, so .txt files are outdated.

General:
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This folder contains presolar grain data for validation of model calculations. The files come from the presolar grain database (for the paper, see library on the plone). The database is maintained mainly by Frank Gyngard, Washington University online at http://presolar.wustl.edu/PGD/ This website uses the username pdg and the password ernst

You can include your own database here, which can be read by the plotting routines as long as the file has the same structure as here. The name of the file must be private.txt and the graintype='private' variable must be set in the plotting routines.

Common problems:
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- The database has to be exported from Excel as 'Windows formatted .txt' file, no comma separated values. 

ToDo:
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- Switch to Excel read in directly to avoid export problems [RT]