Search Publications
Characterization of an Acousto-optic tunable filter for development of a near-IR spectrometer for planetary science
Agrawal, Prince; Nandi, A.; Sudhakar, M. +4 more
The development of a spectrometer is being carried out in the Near-Infrared (NIR) wavelength range of 1.0-1.7 µm using an Acousto-Optic Tunable Filter (AOTF). The AOTF is based on Tellurium-di-oxide (TeO2) crystal that acts as a dispersing medium and is driven by an external Radio Frequency (RF) signal. The characterization of AOT…
Degradation assessment of LYRA after 5 years on orbit - Technology Demonstration -
Gissot, S.; Schühle, U.; Saito, T. +10 more
We present a long-term assessment of the radiometric calibration and degradation of the Large Yield Radiometer (LYRA), which has been on orbit since 2009. LYRA is an ultraviolet (UV) solar radiometer and is the first space experiment using aboard a pioneering diamond detector technology. We show that LYRA has degraded after the commissioning phase…
The gaia survey contribution to EChO target selection and characterization
Sozzetti, Alessandro; Damasso, Mario
The scientific output of the proposed EChO mission (in terms of spectroscopic characterization of the atmospheres of transiting extrasolar planets) will be maximized by a careful selection of targets and by a detailed characterization of the main physical parameters (such as masses and radii) of both the planets and their stellar hosts. To achieve…
Electrical interferences observed in the Cassini CIRS spectrometer
Flasar, F. Michael; Gorius, Nicolas; Guandique, Ever +6 more
The Composite Infrared Spectrometer (CIRS) carried onboard the Cassini spacecraft has now operated successfully for 17 years, following launch in 1997. Following insertion into Saturnian orbit in July 2004, the instrument has taken data nearly continuously, returning over 100 million interferograms (spectra) to date. Although of generally high qua…