Long-wavelength spectrometer from the Infrared Space Observatory (identical spare model) 1990-1993 (spare); 1995 (original launched)
Twin spare of the long-wavelength spectrometer from ISO (Infra-red Space Observatory). Assembled and tested at Rutherford Appleton Laboratory, c.1993. Long-wavelength spectrometer from the Infrared Space Observatory (identical spare model) 1990-1993 (spare); 1995 (original launched)
