Beam-switching parameters (for spectra or drifts)

  ! BEAM: Beam-switching parameters (for spectra or drifts).
  integer(kind=4), parameter :: class_sec_bea_id=-11
  integer(kind=4), parameter :: class_sec_bea_len=5
  type beam
     sequence
     real(kind=4)    :: cazim   ! [ rad] Azimuth of observation
     real(kind=4)    :: celev   ! [ rad] Elevation of observation
     real(kind=4)    :: space   ! [ rad] Beam spacing
     real(kind=4)    :: bpos    ! [ rad] Position angle of beams
     integer(kind=4) :: btype   ! [code] System for angle
  end type beam