SST solar telescope data
SST means Swedish Solar Telescope.
In the NF2 repo, SST data is a separate input route from the usual HMI SHARP CEA route. It is often higher resolution, ground-based, and stored as line-of-sight / transverse / azimuth magnetic-field components rather than remapped CEA components.
Typical SST-style components are:
B_los
B_trv
B_aziWhen to use it
Use SST paths and configs when the project is actually working with SST observations, multi-height inversions, or LOS/transverse/azimuth magnetic data.
For the standard AR 11158 HMI reproduction, this is usually not the right path. That workflow uses SHARP CEA components instead.
Practical rule
If a config says something like:
type: los_trv_azithen the loader expects LOS/transverse/azimuth data. It does not expect CEA Br/Bp/Bt files.
This matters because the two representations describe the same physical vector in different coordinate languages. Mixing them will not give a useful boundary field; it will just make a plausible-looking wrong answer.