Hi Dave, The FTP masters are the final judge, but it looks fine to me. It is basically free distribution with a requirement to change attributions if modified.
Cheers, Walter Landry Dave Hibberd <d...@vehibberd.com> writes: > Walter, > > Thanks for the response - I got in touch with Mr Folkner, and I received the > following response: > > "We consider the ascii and binary ephemeris files the same SPICE > kernels that have exactly the same information just in a different > format. The ephemeris data are then released for public use under the > following conditions; > > https://naif.jpl.nasa.gov/naif/rules.html > > See especially sections on Kernels Distribution and Kernels > Redistribution. The intent is to allow anyone to use or redistribute > as long as the files/kernels are not modified." > > Under my reading of their terms, it feels like a free license we can > distribute the files under - they permit use, redistribution and > modification as the user sees fit, and are only looking to limit their > liability for support of any modified code. > > Can anyone confirm or suggest why I may be wrong in this interpretation? > > Thanks in advance! > DH > > -- > Hibby > d...@vehibberd.com > > On Fri, 23 Feb 2018, at 12:26 AM, Walter Landry wrote: >> Hibby <d...@vehibberd.com> writes: >> > What I'm here to clarify is that I can't see a license for the ascii >> > files - I'm not sure if this fileset is something that anyone in >> > debian-legal have come across, or have any advice on what license they >> > may have been released under? I can't see anything on the JPL FTP server >> > outside of the CD Notes from the original release [5]. The contact >> > detailed on them worked at JPL 21 years ago, and I don't reckon the >> > email address is still active. >> >> There is contact information at the bottom of >> >> https://ssd.jpl.nasa.gov/?planet_eph_export >> >> It references William Folkner. He published a paper in 2014, so he may >> still be around. >> >> Cheer, >> Walter Landry