GOMOS is a medium resolution spectrometer covering the wavelength range from 250 nm to 950 nm. The high sensitivity requirement down to 250 nm has been a significant design driver leading to an all-reflective optical system design for the UVVIS part of the spectrum and to functional pupil separation between the UVVIS and the NIR spectral regions (thus no dichroic separation of UV). Due to the requirement of operating on very faint stars (down to magnitude 4 to 5), the sensitivity requirement to the instrument is very high. Consequently, a large telescope (30 cm × 20 cm aperture) had to be used to collect sufficient signal, and detectors with high quantum efficiency and very low noise had to be developed to achieve the required signal to noise ratios.
Relative spectral accuracy: 0.17 / 0.20 nm in UVVIS (dark / brightlimb typical)
Spectrometers: UV-Vis: 248-371nm & 387-693nm,NIR:750-776nm& 915-956nm,Photometers: 644-705nm & 466-528nm
Atmosphere ( Chemistry , Ozone )
Latest Mission Operations News
The Level 1b re-processing of the full MIPAS mission (from 01/07/2002 up to 08/04/2012, including both Full Resolution and Optimized Resolution mission phases) has been completed with the ESA processor IPF version 7.11. The re-processed MIP_NL__1P data has now been released to the user community and made available online for direct download via the ESA centralised dissemination service (DissHarm).
Related Data Types
Related (Key) Documentation