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This version is identified by code_version_uvt_freq =
code_version_uvt_v20 = 20:
- u,v coordinates are "normal" lengths, as measured in the
geocentric frame
- they correspond to the frequency given in the spectral axis
- the rest frequency is given separately
- the spectral resolution does not distinguish between geocentric
and selected system frame (usually LSR): it is approximate.
In conclusion, v2.0 has lousy spectral axis definition and lousy angular
resolution.
Gildas manager
2023-06-01