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The Visual Monitoring Camera (VMC) on Mars Express: A new science instrument made from an old webcam orbiting Mars
Hernández-Bernal, Jorge; Cardesín-Moinelo, Alejandro; Hueso, Ricardo +17 more
The Visual Monitoring Camera (VMC) is a small imaging instrument onboard Mars Express with a field of view of ∼40°x30°. The camera was initially intended to provide visual confirmation of the separation of the Beagle 2 lander and has similar technical specifications to a typical webcam of the 2000s. In 2007, a few years after the end of its origin…
Modeling the interstellar dust detections by DESTINY+
Kimura, Hiroshi; Trieloff, Mario; Krüger, Harald +11 more
The DESTINY
Structural study of graben within the Margaritifer Terra region of Mars
Dasgupta, Dipayan; Kundu, Abhik; Basu, Supratik +1 more
The surface of Mars preserves a variety of structural and geomorphic features such as wrinkle ridges, graben, lobate scarps, impact basins, paleochannels etc., which owe their origin to endogenic processes of deformation as well as meteorite impacts. Graben, which form in extensional stress regimes, are one of the most common structural features i…
Applying machine learning to a nonlinear spectral mixing model for mapping lunar soils composition using CHANDRAYAAN-1 M3 data
Mall, Urs; Surkov, Yehor; Kaydash, Vadym +4 more
We present a newly developed method which combines the nonlinear spectral mixing model of Shkuratov et al. (1999) with a machine learning algorithm to map the lunar regolith composition using spectral data. The new method performs orders of magnitude faster than the traditionally used numerical optimization approaches, allowing the mapping of rego…
Investigation and cartographic representation of Hyperion space images photogrammetric processing results
Nadezhdina, I. E.; Sokolov, A. I.; Nyrtsov, M. V. +1 more
In this paper a new body-fixed coordinate system, based on the results of the processing of saturnian satellite Hyperion surface data, obtained by the Cassini spacecraft and proving the chaotic nature of this satellite rotation, was constructed. In this coordinate system, an approximating triaxial ellipsoid is defined, as well as global orthomosai…
Seasonal variation in atmospheric optical depth (AOD) and thermal inertia (TI) inter-relationship over Martian Gale crater
Shaheen, Farzana; Krishna, A. P.; Nee Lala, Mili Ghosh +1 more
Investigating the relationship between thermal inertia (TI) and aerosol optical depth (AOD) is significant in giving insights into the seasonality of dust deposition and lifting phenomenon. The present study focuses on establishing a relationship of AOD with TI and different particle sizes over different Martian seasons. Two different Martian land…
Possible influence of Martian surface mineralogy on the detectability of atmospheric trace gases - mid-infrared simulation results
Błęcka, Maria I.
The paper focuses on the influence of the optical properties of Martian surface minerals on remotely detected gaseous components of the Martian atmosphere, when the spectrometer receives a combined signal from the Martian soil and atmosphere. Our considerations are primarily concerned with the detectability of methane, but the problem may also app…
Galactic cosmic rays at 0.7 A.U. with Venus Express housekeeping data
Wood, Simon; Witasse, Olivier; Sánchez-Cano, Beatriz +5 more
We apply a previously developed procedure to characterize galactic cosmic rays (GCRs) at 0.7 A.U. with engineering data coming from the Venus Express mission. The engineering parameters are the Error Detection and Correction EDAC cumulative counters, used for detection and correction of memory errors induced by highly energetic particles. It has a…
A discussion on estimating small bodies taxonomies using phase curves results
Alvarez-Candal, Alvaro
Upcoming large multiwavelength photometric surveys will provide a leap in our understanding of small body populations, among other fields of modern astrophysics. Serendipitous observations of small bodies in different orbital locations allow us to study diverse phenomena related to how their surfaces scatter solar light. In particular, multiple ob…
Addendum to "Description, accessibility and usage of SOIR/Venus Express atmospheric profiles of Venus distributed in VESPA (Virtual European Solar and Planetary Access)"
Vandaele, A. C.; Thomas, I. R.; Trompet, L. +9 more
The reference paper describing the SOIR data service available through the VESPA portal is Trompet et al. (2018). This data service contains an updated version of the profiles already available previously for AERO (aerosols), CO2, CO, H35Cl, H37Cl, HF, SO2, H2O, and HDO following Mahieux et al…