![]() |
![]() |
The ion composition of the Local Interstellar Medium (LIS) is derived from the most recent AMS02 data as described in [DTL22] for all elemental groups from Z = 1 to Z = 28. In some cases, indvidual isotopes for the same Z are explicitly treated as such. A code [Bad96] is then used to apply the solar modulation to the LIS spectra. The spectrum components are written into 33 files. The name of the files has the form (Z+A+phi+<PhiMV>+.spc). The first two characters of each file name are the atomic number of a different primary spectrum ion (e.g. 01:protons, 02:alpha...). The following two characters determine its mass number, zero means natural isotopic composition. They are followed by the solar modulation parameter used for generating the spectrum (7 characters) and by an extension ".spc". The ".spc" files are spectra without geomagnetic cutoff. The ".spc" files are used together with various analytical approximations of the rigidity cutoff, according to an offset or centered dipole approximation of the Earth geomagnetic field, adapted to result in the vertical cutoff inserted into the input file (SPECSOUR command,SDUM=GCR-AMS,WHAT(2)of the continuation card), at the geomagnetic latitude and longitude of interest.