Search Publications
No statistical evidence of lightning in Venus night-side atmosphere from VIRTIS-Venus Express Visible observations
Piccioni, G.; Grassi, D.; García Muñoz, A. +2 more
In this study we describe a dedicated analysis of luminous transient events on Venus night side atmosphere with the visible channel of the VIRTIS instrument (280-1100 nm), this being the most comprehensive search of lightning conducted so far with Venus Express data. Our search results in thousands of signal detections, but unfortunately they can …
Estimation of dust variability and scale height of atmospheric optical depth (AOD) in the Valles Marineris on Mars by Indian Mars Orbiter Mission (MOM) data
Chauhan, Prakash; Sarkar, S. S.; Mishra, Manoj K. +2 more
In this paper analyses of bright hazes observed inside Valles Marineris formed during mid-southern spring of Mars is presented. The analysis is performed by using data collected by Mars Colour Camera (MCC) onboard Indian Mars Orbiter Mission on orbits 34, 49 and 52 corresponding to the observation dates of October 28, December 5 and December 13, 2…
Evidence for dust-driven, radial plasma transport in Saturn's inner radiation belts
Krupp, N.; Roussos, E.; Krimigis, S. M. +4 more
A survey of Cassini MIMI/LEMMS data acquired between 2004 and 2015 has led to the identification of 13 energetic electron microsignatures that can be attributed to particle losses on one of the several faint rings of the planet. Most of the signatures were detected near L-shells that map between the orbits of Mimas and Enceladus or near the G-ring…
Electrical conductivity of the dusty plasma in the Enceladus plume
Yaroshenko, V. V.; Lühr, H.
The plasma conductivity is an important issue for understanding the magnetic field structure registered by Cassini in the Enceladus proximity. We have revise the conductivity mechanism to incorporate the plume nanograins as a new plasma species and take into account the relevant collisional processes including those accounting for the momentum exc…
Probing Saturn's tropospheric cloud with Cassini/VIMS
Fletcher, L. N.; Irwin, P. G. J.; Giles, R. S. +2 more
In its decade of operation the Cassini mission has allowed us to look deep into Saturn's atmosphere and investigate the processes occurring below its enshrouding haze. We use Visual and Infrared Mapping Spectrometer (VIMS) 4.6-5.2 µm data from early in the mission to investigate the location and properties of Saturn's cloud structure between…
Simultaneous multi-scale and multi-instrument observations of Saturn's aurorae during the 2013 observing campaign
Baines, K. H.; Johnson, R. E.; Badman, S. V. +14 more
On 21 April 2013, during a co-ordinated Saturn auroral observing campaign, the northern and southern poles of the planet were observed from the Earth using the NASA Infrared Telescope Facility (IRTF), Keck, and Hubble Space Telescope (HST) simultaneously with the Cassini infrared, visible, and ultraviolet remote sensing instruments. We present sim…
Comparison of lunar red spots including the crater copernicus
Ivanov, M.; Korokhin, V.; Kaydash, V. +4 more
The lunar red spots, Helmet, Hansteen Alpha, and the NW quadrant of the crater Copernicus, were selected for a complex comparative investigation of their characteristics measured by the spacecraft Clementine, LRO, and Chandrayaan-1. For the analysis we used the following parameters: the reflectance A(750 nm), color-ratio A(750 nm)/A(415 nm), param…
Geomorphology of Lowell crater region on the Moon
Srivastava, N.; Varatharajan, I.
Surface topography, surface morphology and crater chronology studies have been carried out for the Lowell crater region (occupying ∼198 × 198 km2 in the northwestern quadrant of the Orientale basin) using Kaguya TC-DTM, LRO-WAC data, and Chandrayaan-1 M3-750 nm image, to characterize and date Lowell impact event and to identi…
Spatial distribution of jovian clouds, hazes and colors from Cassini ISS multi-spectral images
Hueso, R.; Sánchez-Lavega, A.; Pérez-Hoyos, S. +1 more
The Cassini spacecraft made a gravity assist flyby of Jupiter in December 2000. The Imaging Science Subsystem (ISS) acquired images of the planet that covered the visual range with filters sensitive to the distribution of clouds and hazes, their altitudes and color. We use a selection of these images to build high-resolution cylindrical maps of th…
Observation of Neon at mid and high latitudes in the sunlit lunar exosphere: Results from CHACE aboard MIP/Chandrayaan-1
Bhardwaj, Anil; Sridharan, R.; Thampi, Smitha V. +2 more
The distribution of neutral Neon at the mid and high latitudes in the sunlit lunar exosphere observed by CHandra's Altitudinal Composition Explorer (CHACE) aboard the Moon Impact Probe (MIP) of the Chandrayaan-1 is reported. The CHACE observation was made when Moon was in the Earth's magnetotail. The upper limits of the surface number density are …