CDF Copyright
Space Physics Data Facility
NASA/Goddard Space Flight Center
This software may be copied or redistributed as long as it is not sold for profit, but it can be
incorporated into any other substantive product with or without modifications for profit or nonprofit. If the software is modified, it must include the following notices:
The software is not the original (for protection of the original author's reputations from any
problems introduced by others)
Change history (e.g. date, functionality, etc.)
This copyright notice must be reproduced on each copy made. This software is provided as is
without any express or implied warranties whatsoever.