Welcome to FLightR, an R package that deals with solar geolocation data. The scope of the package is to position animal using data from solar geolocation archival tags the package is in the active development.
New version does not require lots of RAM, but it became slower.
Very important changes were made for version 0.3.6 Just contact me if results come out strange.
Do not know what the difference between BAS and Intigeo is? In short intigeo are being currently produced by Migrate Technology Ltd, and measure data up to very high sun elevation angles, BAS tags are the old ones produced inititally by British Antarctic Survey, then by Migrate Technology (till ~2013) and Lotek (still available) and measured data at the low sun angles (with maximum written at 64). More on the tag specific differences can be found here.
Rakhimberdiev, E. (2016). Ornithology by light levels today: dealing with a developing teenager. Wader Study, 123, 1–3.
Discussion web forum for solar geolocation is available at ornithologyexchange. Ask there if you need help with the FLightR per se or with solar geolocation in general.