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Science exploration architecture for Phobos and Deimos: The role of Phobos and Deimos in the future exploration of Mars
Head, James W.; Qiao, Le; Pieters, Carle M. +12 more
Phobos and Deimos are the only natural satellites of the terrestrial planets, other than our Moon. Despite decades of revolutionary Mars exploration and plans to send humans to the surface of Mars in the 2030's, there are many strategic knowledge gaps regarding the moons of Mars, specifically regarding the origin and evolution of these bodies. Add…
Exospheric escape: A parametrical study
Killen, Rosemary M.; Burger, Matthew H.; Farrell, William M.
The study of exospheres can help us understand the long-term loss of volatiles from planetary bodies due to interactions of planets, satellites, and small bodies with the interplanetary medium, solar radiation, and internal forces including diffusion and outgassing. Recent evidence for water and OH on the Moon has spurred interest in processes inv…
Geometric calibration of Colour and Stereo Surface Imaging System of ESA's Trace Gas Orbiter
Cremonese, Gabriele; Thomas, Nicolas; Tulyakov, Stepan +5 more
There are many geometric calibration methods for "standard" cameras. These methods, however, cannot be used for the calibration of telescopes with large focal lengths and complex off-axis optics. Moreover, specialized calibration methods for the telescopes are scarce in literature. We describe the calibration method that we developed for the Colou…
Determination of projection effects of CMEs using quadrature observations with the two STEREO spacecraft
Bronarska, K.; Michalek, G.
Since 1995 coronal mass ejections (CMEs) have been routinely observed thanks to the sensitive Large Angle and Spectrometric Coronagraphs (LASCO) on board the Solar and Heliospheric Observatory (SOHO) mission. Their observed characteristics are stored, among other, in the SOHO/LASCO catalog. These parameters are commonly used in scientific studies.…
Solar flares, CMEs and solar energetic particle events during solar cycle 24
Pande, Bimal; Pande, Seema; Chandra, Ramesh +1 more
We present here a study of Solar Energetic Particle Events (SEPs) associated with solar flares during 2010-2014 in solar cycle 24. We have selected the flare events (≥GOES M-class), which produced SEPs. The SEPs are classified into three categories i.e. weak (proton intensity ≤ 1 pfu), minor (1 pfu < proton intensity < 10 pfu) and major (pro…
Properties and relationship between solar eruptive flares and Coronal Mass Ejections during rising phase of Solar Cycles 23 and 24
Moon, Y. -J.; Shanmugaraju, A.; Umapathy, S. +2 more
Statistical relationship between major flares and the associated CMEs during rising phases of Solar Cycles 23 and 24 are studied. Totally more than 6000 and 10,000 CMEs were observed by SOHO/LASCO (Solar and Heliospheric Observatory/Large Angle Spectrometric Coronagraph) during 23rd [May 1996-June 2002] and 24th [December 2008-December 2014] solar…
A study of a long duration B9 flare-CME event and associated shock
Srivastava, A. K.; Chandra, R.; Chen, P. F. +2 more
We present and discuss here the observations of a small long duration GOES B-class flare associated with a quiescent filament eruption, a global EUV wave and a CME on 2011 May 11. The event was well observed by the Solar Dynamics Observatory (SDO), GONG H α , STEREO and Culgoora spectrograph. As the filament erupted, ahead of the filament we obser…
The SSDC contribution to the improvement of knowledge by means of 3D data projections of minor bodies
Longobardo, Andrea; Palomba, Ernesto; Zinzi, Angelo +6 more
The latest developments of planetary exploration missions devoted to minor bodies required new solutions to correctly visualize and analyze data acquired over irregularly shaped bodies.
ASI Space Science Data Center (SSDC - ASI, formerly ASDC - ASI Science Data Center) worked on this task since early 2013, when started developing the web tool…Added-value interfaces to asteroid photometric and spectroscopic data in the Gaia database
Muinonen, Karri; Granvik, Mikael; O'Mullane, William +7 more
We present two added-value interfaces (AVIs) for analyzing photometric and spectroscopic data observed by the Gaia satellite. The Gaia Added-Value Interface for Temporal Analysis (GAVITEA) is used to calculate an estimate for the spin state and shape of an asteroid from its photometric data, and the Gaia Added-Value Interface for Spectral Classifi…
A statistical study of CME-Preflare associated events
Youssef, M.; Mawad, Ramy
We investigated the relationship of associated CME-Preflare during the solar period 1996-2010. We found 292 CME-Preflare associated events (∼2%). Those associated events have 0-1 h interval time, popular events occur within half an hour before flare starting time. Post-flares-CME associated events are wider than CME-Preflare associated events. CME…