Search Publications
Magnetic signatures of ion cyclotron waves during Cassini's high-inclination orbits of Saturn
Simon, Sven; Meeks, Zachary
Based on magnetic field data from Cassini's high-inclination orbits of Saturn (radius RS = 60 , 268 km), we analyze the latitudinal distribution of ion cyclotron waves in the giant planet's magnetosphere. Our survey takes into account magnetic field data from all high-inclination orbits between 2004 and 2015. We analyze the dependency o…
Evidences of early aqueous Mars: Implications on the origin of branched valleys in the Ius Chasma, Mars
Martha, Tapas R.; Jain, Nirmala; Vamshi, Gasiganti T. +1 more
This study shows results of morphological and spectroscopic analyses of Ius Chasma and its southern branched valleys using Orbiter datasets such as Mars Reconnaissance Orbiter (MRO)-Compact Reconnaissance Imaging Spectrometer for Mars (CRISM), High Resolution Imaging Science Experiment (MRO-HiRISE) and digital terrain model (HRSC-DTM). Result of t…
Resurfacing event observed in Morpheos basin (Eridania Planitia) and the implications to the formation and timing of Waikato and Reull Valles, Mars
Kostama, V. -P.; Raitala, J.; Kukkonen, S.
The large scale outflow channels of the Hellas impact basin are characteristic to its eastern rim region. Although the majority of the valles are located in the large-scale topographic trough connecting Hesperia Planum and Hellas basin, the most far-reaching of them, Reull Vallis is situated to the south-southeast of this trough cutting through Pr…
Retrieval of Venus' cloud parameters from VIRTIS nightside spectra in the latitude band 25°-55°N
Piccioni, Giuseppe; Grassi, Davide; Magurno, Davide +2 more
Two years of data from the M-channel of the Visible and InfraRed Thermal Imaging Spectrometer (VIRTIS), on board the European Space Agency mission Venus Express operating around the planet Venus, are analysed. Nocturnal data from a nadir viewpoint in the latitude band 25°N-55°N are selected for their configuration advantages and maximisation of th…
The High Resolution Stereo Camera (HRSC) of Mars Express and its approach to science analysis and mapping for Mars and its satellites
Jaumann, R.; Oberst, J.; Preusker, F. +32 more
The High Resolution Stereo Camera (HRSC) of ESA's Mars Express is designed to map and investigate the topography of Mars. The camera, in particular its Super Resolution Channel (SRC), also obtains images of Phobos and Deimos on a regular basis. As HRSC is a push broom scanning instrument with nine CCD line detectors mounted in parallel, its unique…
A first assessment of the strength of cometary particles collected in-situ by the COSIMA instrument onboard ROSETTA
Langevin, Yves; Della Corte, Vincenzo; Hornung, Klaus +9 more
Soon after the arrival of the ROSETTA spacecraft at Comet 67/P Churyumov-Gerasimenko the onboard instrument COSIMA ("Cometary Secondary Ion Mass Analyzer") collected a large number of cometary dust particles on targets from gold black of thickness between 10 and 30 µm. Inspection by its camera subsystem revealed that many of them consist of …
Mars Express 10 years at Mars: Observations by the Mars Express Radio Science Experiment (MaRS)
Pätzold, M.; Hahn, M.; Rosenblatt, P. +17 more
The Mars Express spacecraft is operating in Mars orbit since early 2004. The Mars Express Radio Science Experiment (MaRS) employs the spacecraft and ground station radio systems (i) to conduct radio occultations of the atmosphere and ionosphere to obtain vertical profiles of temperature, pressure, neutral number densities and electron density, (ii…
Martian ionosphere observed by Mars Express. 1. Influence of the crustal magnetic fields
Dubinin, E.; Fraenz, M.; Andrews, D. +1 more
Exploring the Venus global super-rotation using a comprehensive general circulation model
Read, P. L.; Mendonça, J. M.
The atmospheric circulation in Venus is well known to exhibit strong super-rotation. However, the atmospheric mechanisms responsible for the formation of this super-rotation are still not fully understood. In this work, we developed a new Venus general circulation model to study the most likely mechanisms driving the atmosphere to the current obse…
ROSETTA lander Philae: Touch-down reconstruction
Roll, Reinhard; Witte, Lars
The landing of the ROSETTA-mission lander Philae on November 12th 2014 on Comet 67 P/Churyumov-Gerasimenko was planned as a descent with passive landing and anchoring by harpoons at touch-down. Actually the lander was not fixed at touch-down to the ground due to failing harpoons. The lander internal damper was actuated at touch-down for 42.6 mm wi…