Search Publications
The ground calibration setup of OMEGA and VIRTIS experiments: description and performances
Langevin, Yves; Gondet, Brigitte; Bonello, Guillaume +4 more
Hyperspectral imagery is an essential technique for remote sensing of surfaces and atmospheres of planetary objects. However, given the instrumental complexity of coupling imaging and spectroscopy, in particular in the infrared, an in-depth ground calibration is mandatory to enable an unbiased and optimized data reduction. This paper presents the …
The Beagle 2 stereo camera system
Coates, A. J.; Josset, J. -L.; Pillinger, C. T. +6 more
The stereo camera system (SCS) was designed to provide wide-angle multi-spectral stereo imaging of the Beagle 2 landing site. Based on the Space-X micro-cameras, the primary objective was to construct a digital elevation model of the area in reach of the lander's robot arm. The SCS technical specifications and scientific objectives are described; …
PFS-MEX observation of ices in the residual south polar cap of Mars
Piccioni, G.; Hansen, G.; Grassi, D. +10 more
The Mars Express spacecraft has a highly inclined orbit around Mars and so has been able to observe the south pole of Mars in illuminated conditions at the end of the southern summer ( L=330). Spectra from the planetary Fourier spectrometer (PFS) short wavelength (SW) channel were recorded over the permanent ice cap to study its composition in ter…
A Martian PFS average spectrum: Comparison with ISO SWS
Lellouch, E.; Encrenaz, T.; Piccioni, G. +13 more
The evaluation of the planetary Fourier spectrometer performance at Mars is presented by comparing an average spectrum with the ISO spectrum published by Lellouch et al. [2000. Planet. Space Sci. 48, 1393.]. First, the average conditions of Mars atmosphere are compared, then the mixing ratios of the major gases are evaluated. Major and minor bands…
Coronal mass ejection of 4 April 2000 and associated space weather effects
Jadav, R. M.; Iyer, K. N.; Joshi, H. P. +1 more
The effects of a Halo Coronal Mass Ejection (CME) erupted on 4 April 2000 are studied and reported here. The effect of such CME on the interplanetary medium (IPM) is sensed by the Interplanetary Scintillation (IPS) recorded at Rajkot. The Solar Observations of this CME and associated events, like Solar Energetic Particles (SEP) and flare, are pres…
Simulations of high-latitude spots on Jupiter: Constraints on vortex strength and the deep wind
Morales-Juberias, Raul; Dowling, Timothy E.
We combine high-resolution observations of the dynamical behavior of small vortices (diameters ⩽5000 km) located at latitude 60°N on Jupiter with forward modeling, using the EPIC atmospheric model, to address two open questions: the dependence of the zonal winds with depth, and the strength of vortices that are too small to apply cloud tracking to…
Huygens probe entry and descent trajectory analysis and reconstruction techniques
Lebreton, J. -P.; Ferri, F.; Gaborit, V. +2 more
Cassini/Huygens is a joint National Aeronautics and Space Administration (NASA)/European Space Agency (ESA)/Agenzia Spaziale Italiana (ASI) mission on its way to explore the Saturnian system. The ESA Huygens Probe is scheduled to be released from the Orbiter on 25 December 2004 and enter the atmosphere of Titan on 14 January 2005. Probe delivery t…
High resolution observations of continuum radiation
Gurnett, D. A.; Pickett, J. S.; Santolik, O. +1 more
The Polar spacecraft has identified near-source regions of continuum emission in the plasmapause and outer plasmasphere. As in the case of kilometric continuum (KC), near-source regions of continuum emission often display a high resolution fine structure of closely spaced bands of emission. The separation of the bands is much less than the local g…
Subsurface radar sounding of the martian polar cap: radiative transfer approach
Ilyushin, Ya. A.; Seu, R.; Phillips, R. J.
The problem of subsurface radar sounding of the martian polar caps [Ilyushin, 2004. Martian northern polar cap: layering and possible implications for radar sounding. Planet. Space Sci. 52, 1195-1207] is considered from the point of view of incoherent radiative transfer theory. Since it has been previously shown that the radar signal field within …
An overview of the scientific objectives and technical configuration of the NeUtral Atom Detector Unit (NUADU) for the Chinese Double Star Mission
Barabash, S.; Dandouras, I.; Roelof, E. C. +12 more
The scientific objectives of an advanced NeUtral Atom Detector Unit (NUADU) designed for the Chinese Double Star Polar Mission, which is scheduled for launch in July 2004, are described. The potential during this mission to realize, hitherto unprecedented, integrated studies of global dynamic magnetospheric processes through combining with NUADU d…