instrument data for olci l2 products is read correctly
(cherry picked from commit dfbc8c9)
spectral covariance matrix is displayed as metadata
(cherry picked from commit 9799df9)
refactoring
(cherry picked from commit cad8857)
instrument data for olci l2 products is read correctly
(cherry picked from commit dfbc8c9)
units are set
introduced s3multilevelopimage
code clean
added units and descriptions
Merge branch 'master' into module_renaming