16 results on '"Cardesin, Alejandro"'
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2. Mars Express science highlights and future plans
- Author
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Titov, Dmitrij, primary, Wilson, Colin, additional, Bibring, Jean-Pierre, additional, Cardesin, Alejandro, additional, Carter, John, additional, Duxbury, Tom, additional, Forget, Francois, additional, Giuranna, Marco, additional, González-Galindo, Francisco, additional, Holmström, Mats, additional, Jaumann, Ralf, additional, Määttänen, Anni, additional, Martin, Patrick, additional, Montmessin, Franck, additional, Orosei, Roberto, additional, Pätzold, Martin, additional, Plaut, Jeff, additional, and Sgs Team, Mex, additional
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- 2022
- Full Text
- View/download PDF
3. First results from the MEX – TGO Mutual Radio Occultation Experiment
- Author
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Svedhem, Håkan, primary, Parrott, Jacob, additional, Witasse, Olivier, additional, Titov, Dmitry, additional, Cardesin, Alejandro, additional, Geiger, Bernhard, additional, Martin, Patrick, additional, Denis, Michel, additional, Godfrey, James, additional, Schmitz, Peter, additional, Wood, Simon, additional, Reboud, Olivier, additional, and Nava, Bruno, additional
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- 2021
- Full Text
- View/download PDF
4. Dynamical Phenomena in Martian dust storms
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Sanchez-Lavega, Agustin, primary, Leyva, Juan Manuel, additional, Erkoreka, Aitor, additional, García-Morales, Josu, additional, Hernández-Bernal, Jorge, additional, del Rio-Gaztelurrutia, Teresa, additional, Ordoñez-Etxeberria, Iñaki, additional, Cardesin, Alejandro, additional, Hueso, Ricardo, additional, Titov, Dimitri, additional, Wood, Simon, additional, Tirsch, Daniela, additional, Hauber, Ernst, additional, and Matz, Klaus-Dieter, additional
- Published
- 2021
- Full Text
- View/download PDF
5. MAPPS: Science Planning and Simulation Tool for ESA Planetary Missions
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Muñiz, Carlos, primary and Cardesin, Alejandro, additional
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- 2021
- Full Text
- View/download PDF
6. Mars Express science highlights and future plans
- Author
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Titov, Dmitrij, primary, Bibring, Jean-Pierre, additional, Cardesin, Alejandro, additional, Carter, John, additional, Duxbury, Tom, additional, Forget, Francois, additional, Giuranna, Marco, additional, González-Galindo, Francisco, additional, Holmström, Mats, additional, Jaumann, Ralf, additional, Määttänen, Anni, additional, Martin, Patrick, additional, Montmessin, Franck, additional, Orosei, Roberto, additional, Pätzold, Martin, additional, Plaut, Jeffrey, additional, and Sgs Team, Mex, additional
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- 2021
- Full Text
- View/download PDF
7. A dynamic upper atmosphere of Venus as revealed by VIRTIS on Venus Express
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Drossart, P., Piccioni, G., Gerard, J. C., Lopez-Valverde, M. A., Sanchez-Lavega, A., Zasova, L., Hueso, R., Taylor, F. W., Bezard, B., Adriani, A., Angrilli, F., Arnold, G., Baines, K. H., Bellucci, G., Benkhoff, J., Bibring, J. P., Blanco, A., Blecka, M. I., Carlson, R. W., Coradini, A., Di Lellis, A., Encrenaz, T., Erard, S., Fonti, S., Formisano, V., Fouchet, T., Garcia, R., Haus, R., Helbert, J., Ignatiev, N. I., Irwin, P., Langevin, Y., Lebonnois, S., Luz, D., Marinangeli, L., Orofino, V., Rodin, A. V., Roos-Serote, M. C., Saggin, B., Stam, D. M., Titov, D., Visconti, G., Zambelli, M., Tsang, C., Ammannito, Eleonora, Barbis, Alessandra, Berlin, Rainer, Bettanini, Carlo, Boccaccini, Angelo, Bonnello, Guillaume, Bouye, Marc, Capaccioni, Fabrizio, Cardesin, Alejandro, Carraro, Francesco, Cherubini, Giovanni, Cosi, Massimo, Dami, Michele, De Nino, Maurizio, Del Vento, Davide, Di Giampietro, Marco, Donati, Alessandro, Dupuis, Olivier, Espinasse, Sylvie, Fabbri, Anna, Fave, Agnes, Ficai Veltroni, Iacopo, Filacchione, Gianrico, Garceran, Katia, Ghomchi, Yamina, Giustizi, Maurizio, Gondet, Brigitte, Hello, Yann, Henry, Florence, Hofer, Stefan, Huntzinger, Gerard, Kachlicki, Juergen, Knoll, Rene, Kouach, Driss, Mazzoni, Alessandro, Melchiorri, Riccardo, Mondello, Giuseppe, Monti, Francesco, Neumann, Christian, Nuccilli, Fabrizio, Parisot, Jerome, Pasqui, Claudio, Perferi, Stefano, Peter, Gisbert, Piacentino, Alain, Pompei, Carlo, Reess, Jean-Michel, Rivet, Jean-Pierre, Romano, Antonio, Russ, Natalie, Santoni, Massimo, Scarpelli, Adelmo, Semery, Alain, Soufflot, Alain, Stefanovitch, Douchane, Suetta, Enrico, Tarchi, Fabio, Tonetti, Nazzareno, Tosi, Federico, and Ulmer, Bernd
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Environmental issues ,Science and technology ,Zoology and wildlife conservation - Abstract
Author(s): P. Drossart (corresponding author) [1]; G. Piccioni [2]; J. C. Gérard [4]; M. A. Lopez-Valverde [5]; A. Sanchez-Lavega [6]; L. Zasova [7]; R. Hueso [6]; F. W. Taylor [8]; [...]
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- 2007
- Full Text
- View/download PDF
8. Mars Express Science Highlights and Future Plans
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Titov, Dmitrij, primary, Bibring, Jean-Pierre, additional, Cardesin, Alejandro, additional, Duxbury, Thomas, additional, Forget, Francois, additional, Giuranna, Marco, additional, Gonzaìlez-Galindo, Francisco, additional, Holmström, Mats, additional, Jaumann, Ralf, additional, Määttänen, Anni, additional, Martin, Patrick, additional, Montmessin, Franck, additional, Orosei, Roberto, additional, Pätzold, Martin, additional, and Plaut, Jeff, additional
- Published
- 2020
- Full Text
- View/download PDF
9. Mars Express science highlights and future plans
- Author
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Titov, Dmitrij, Bibring, Jean-Pierre, Cardesin, Alejandro, Duxbury, Thomas, Forget, Francois, Giuranna, Marco, González-Galindo, F., Holmström, Mats, Jaumann, Ralf, Määttänen, Anni, Martin, Patrick, Montmessin, Franck, Orosei, Roberto, Pätzold, Martin, Paut, Jeffrey, Mex Sgs Team, Titov, Dmitrij, Bibring, Jean-Pierre, Cardesin, Alejandro, Duxbury, Thomas, Forget, Francois, Giuranna, Marco, González-Galindo, F., Holmström, Mats, Jaumann, Ralf, Määttänen, Anni, Martin, Patrick, Montmessin, Franck, Orosei, Roberto, Pätzold, Martin, Paut, Jeffrey, and Mex Sgs Team
- Abstract
The talk will give the Mars Express status, review the recent science highlights, and outline future plans focusing on synergistic science with TGO
- Published
- 2019
10. Atmospheric and aeronomy investigations by ESA's Mars express
- Author
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Titov, Dmitrij V., Bibring, Jean-Pierre, Cardesin, alejandro, Duxbury, Thomas, Forget, Francois, Giuranna, Marco, Gonzalez-Galindo, Francisco, Holmström, Mats, Jaumann, Ralf, Määttänen, Anni, Martin, Patrick, Montmessin, Franck, Orosei, Roberto, Paetzold, Martin, Plaut, Jeffrey J., European Space Research and Technology Centre (ESTEC), European Space Agency (ESA), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), European Space Astronomy Centre (ESAC), George Mason University [Fairfax], Laboratoire de Météorologie Dynamique (UMR 8539) (LMD), Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Istituto di Fisica dello Spazio Interplanetario (IFSI), Consiglio Nazionale delle Ricerche (CNR), Instituto de Astrofísica de Andalucía (IAA), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Swedish Institute of Space Physics [Kiruna] (IRF), DLR Institut für Planetenforschung, Deutsches Zentrum für Luft- und Raumfahrt [Berlin] (DLR), PLANETO - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Sorbonne Université (SU)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Istituto di Radioastronomia [Bologna] (IRA), Istituto Nazionale di Astrofisica (INAF), Rhenish Institute for Environmental Research (RIU), University of Cologne, Jet Propulsion Laboratory (JPL), and NASA-California Institute of Technology (CALTECH)
- Subjects
[SDU]Sciences of the Universe [physics] ,Physics::Space Physics ,Astrophysics::Earth and Planetary Astrophysics ,Physics::Geophysics - Abstract
International audience; Mars Express remains one of ESA’s most scientifically productive missions whose publication record now exceeds 1000 papers. Characterization of the geological processes on a local-toregional scale by HRSC, OMEGA and partner experiments on NASA spacecraft has allowed constraining land-forming processes in space and time. Recent results suggest episodic geological activity as well as the presence of large bodies of liquid water in several provinces (e.g. Eridania Planum, Terra Chimeria) in the early and middle Amazonian epoch and formation of vast sedimentary plains north of the Hellas basin. Mars Express observations and experimental teams provided essential contribution to the selection of the Mars-2020 landing sites. More than a decade-long record of the atmospheric parameters such as temperature, dust loading, water vapor and ozone abundance, water ice and CO2 clouds distribution, collected by SPICAM, PFS and OMEGA spectrometers as well as subsequent modeling have provided key contributions to our understanding of the martian climate. ASPERA-3 observations of the ion escape covering complete solar cycle have revealed important dependencies of the atmospheric erosion rate on parameters of the solar wind and EUV flux. The structure of the ionosphere sounded by the MARSIS radar and the MaRS radio science experiment was found to be significantly affected by the solar activity, the crustal magnetic field, as well as by the influx of meteorite and cometary dust. MARSIS and ASPERA-3 observations suggest that the sunlit ionosphere over the regions with strong crustal fields is denser and extends to higher altitudes as compared to the regions with no crustal anomalies. The ionospheric plasma expands to higher altitudes where it contacts with the solar wind plasma. Reconnection of solar magnetic field lines carried by the solar wind with field lines of crustal origin opens channels through which the ionospheric plasma escapes to space, producing strong and narrow cavities in the density. The situation is very different on the night side where the ionosphere has patchy structure. Such patchy ionizations are observed in the regions where field lines have a dominant vertical component. Through these patches the ionospheric plasma from the dayside penetrates and supplies the nightside ionosphere. Mars Express provides unique observation capabilities amongst the flotilla of spacecraft investigating Mars. The mission has been extended till the end of 2020. The observation program proposed for 2019-2020 includes both augmenting the coverage and extending long-time series, as well as new elements and potentially new opportunities for discoveries. It will be boosted by collaboration and synergies with NASA’s MAVEN, ESA-Roscosmos Trace Gas Orbiter and other missions. The talk will give the mission status, review the recent science highlights, and outline future plans
- Published
- 2018
11. Mars Express recent findings and future plans
- Author
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Titov, Dmitrij V., Bibring, Jean-Pierre, Cardesin, Alejandro, Duxbury, Thomas, Forget, François, Giuranna, Marco, Gonzalez-Galindo, Francisco, Holmström, Mats, Jaumann, Ralf, Määttänen, Anni, Martin, Patrick, Montmessin, Franck, Orosei, Roberto, Pätzold, Martin, Plaut, Jeffrey J., European Space Research and Technology Centre (ESTEC), European Space Agency (ESA), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), European Space Astronomy Centre (ESAC), George Mason University [Fairfax], Laboratoire de Météorologie Dynamique (UMR 8539) (LMD), Département des Géosciences - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École des Ponts ParisTech (ENPC)-École polytechnique (X)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Istituto di Astrofisica e Planetologia Spaziali - INAF (IAPS), Istituto Nazionale di Astrofisica (INAF), Instituto de Astrofísica de Andalucía (IAA), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Swedish Institute of Space Physics [Kiruna] (IRF), DLR Institute of Planetary Research, German Aerospace Center (DLR), PLANETO - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Istituto di Radioastronomia [Bologna] (IRA), Rhenish Institute for Environmental Research (RIU), University of Cologne, Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), Agence Spatiale Européenne = European Space Agency (ESA), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)
- Subjects
[SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] - Abstract
International audience; Mars Express remains one of ESA’s most scientifically productive missions whose publication record nowexceeds 1000 papers. Characterization of geological processes on a local-to-regional scale by HRSC, OMEGAand partner experiments on NASA spacecraft has allowed constraining land-forming processes in space and time.Recent results suggest episodic geological activity as well as the presence of large bodies of liquid water in severalprovinces (e.g. Eridania Planum, Terra Chimeria) in the early and middle Amazonian epoch and formation ofvast sedimentary plains north of the Hellas basin. Mars Express observations and experimental teams providedan essential contribution to the selection of the Mars-2020 landing sites. More than a decade-long record ofatmospheric parameters such as temperature, dust loading, water vapor and ozone abundance, water ice and CO2clouds distribution, collected by SPICAM, PFS and OMEGA spectrometers as well as subsequent modeling haveprovided key contributions to our understanding of the martian climate. The ASPERA-3 observations of ionescape covering a complete solar cycle have revealed important dependencies of the atmospheric erosion rate onparameters of the solar wind and EUV flux. Structure of the ionosphere sounded by the MARSIS radar and theMaRS radio science experiment was found to be significantly affected by the solar activity, the crustal magneticfield, as well as by the influx of meteorite and cometary dust. MARSIS and ASPERA-3 observations suggestthat the sunlit ionosphere over the regions with strong crustal fields is denser and extends to higher altitudes ascompared to the regions with no crustal anomalies. The ionospheric plasma expands to higher altitudes where itcontacts with the solar wind plasma. Reconnection of solar magnetic field lines carried by the solar wind withfield lines of crustal origin opens channels through which the ionospheric plasma escapes to space, producingstrong and narrow cavities in the density. The situation is very different on the night side where the ionosphere hasa patchy structure. Such patchy ionizations are observed in the regions where crustal field lines have a dominantvertical component. Through these patches the ionospheric plasma from the dayside penetrates and supplies thenightside ionosphere.Mars Express has fully accomplished its objectives set for 2015-2016. The mission provides unique observationcapabilities amongst the flotilla of spacecraft investigating Mars. The mission has been confirmed till the endof 2018. The science case for the mission extension until the end of 2020 has been submitted. The observationprogram proposed for 2019-2020 includes both augmenting the coverage and extending long-time series, aswell as new elements and potentially new opportunities for discoveries. It will be boosted by collaboration andsynergies with NASA’s MAVEN, ESA-Roscosmos ExoMars-2016 Trace Gas Orbiter and other missions. The talkwill give the mission status, review the recent science highlights, and outline future plans.
- Published
- 2017
12. Mars EXpress: status and recent findings
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Titov, Dmitri, Bibring, Jean-Pierre, Cardesin, Alejandro, Duxbury, Tom, Forget, Francois, GIURANNA, MARCO, Holmstroem, Mats, Jaumann, Ralf, Martin, Patrick, Montmessin, Franck, OROSEI, ROBERTO, Paetzold, Martin, Plaut, Jeff, and MEX SGS Team
- Abstract
Mars Express has entered its second decade in orbit in excellent health. The mission extension in 2015-2016 aims at augmenting of the surface coverage by imaging and spectral imaging instruments, continuing monitoring of the climate parameters and their variability, study of the upper atmosphere and its interaction with the solar wind in collaboration with NASA's MAVEN mission. Characterization of geological processes and landforms on Mars on a local-to-regional scale by HRSC camera constrained the martian geological activity in space and time and suggested its episodicity. Six years of spectro-imaging observations by OMEGA allowed correction of the surface albedo for presence of the atmospheric dust and revealed changes associated with the dust storm seasons. Imaging and spectral imaging of the surface shed light on past and present aqueous activity and contributed to the selection of the Mars-2018 landing sites. More than a decade long record of climatological parameters such as temperature, dust loading, water vapor, and ozone abundance was established by SPICAM and PFS spectrometers. Observed variations of HDO/H2O ratio above the subliming North polar cap suggested seasonal fractionation. The distribution of aurora was found to be related to the crustal magnetic field. ASPERA observations of ion escape covering a complete solar cycle revealed important dependences of the atmospheric erosion rate on parameters of the solar wind and EUV flux. Structure of the ionosphere sounded by MARSIS radar and MaRS radio science experiment was found to be significantly affected by the solar activity, crustal magnetic field as well as by influx of meteorite and cometary dust. The new atlas of Phobos based on the HRSC imaging was issued. The talk will give the mission status and review recent science highlights.
- Published
- 2016
13. Rosetta Planning Concept for Pre-Comet Scenarios Illustrated with Deep Impact Observations
- Author
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Wirth, Kristin, primary, Dhiri, Viney, additional, Koschny, Detlef, additional, Diaz del Rio, Jorge, additional, Zender, Joe, additional, Schwehm, Gerhard, additional, Solaz, Ruben, additional, and Cardesin, Alejandro, additional
- Published
- 2006
- Full Text
- View/download PDF
14. Investigations of the Mars Upper Atmosphere with ExoMars Trace Gas Orbiter
- Author
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López-Valverde, Miguel A., Gerard, Jean-Claude, González-Galindo, Francisco, Vandaele, Ann-Carine, Thomas, Ian, Korablev, Oleg, Ignatiev, Nikolai, Fedorova, Anna, Montmessin, Franck, Määttänen, Anni, Guilbon, Sabrina, Lefevre, Franck, Patel, Manish R., Jiménez-Monferrer, Sergio, García-Comas, Maya, Cardesin, Alejandro, Wilson, Colin F., Clancy, R. T., Kleinböhl, Armin, McCleese, Daniel J., Kass, David M., Schneider, Nick M., Chaffin, Michael S., López-Moreno, José Juan, Rodríguez, Julio, López-Valverde, Miguel A., Gerard, Jean-Claude, González-Galindo, Francisco, Vandaele, Ann-Carine, Thomas, Ian, Korablev, Oleg, Ignatiev, Nikolai, Fedorova, Anna, Montmessin, Franck, Määttänen, Anni, Guilbon, Sabrina, Lefevre, Franck, Patel, Manish R., Jiménez-Monferrer, Sergio, García-Comas, Maya, Cardesin, Alejandro, Wilson, Colin F., Clancy, R. T., Kleinböhl, Armin, McCleese, Daniel J., Kass, David M., Schneider, Nick M., Chaffin, Michael S., López-Moreno, José Juan, and Rodríguez, Julio
- Abstract
The Martian mesosphere and thermosphere, the region above about 60 km, is not the primary target of the ExoMars 2016 mission but its Trace Gas Orbiter (TGO) can explore it and address many interesting issues, either in-situ during the aerobraking period or remotely during the regular mission. In the aerobraking phase TGO peeks into thermospheric densities and temperatures, in a broad range of latitudes and during a long continuous period. TGO carries two instruments designed for the detection of trace species, NOMAD and ACS, which will use the solar occultation technique. Their regular sounding at the terminator up to very high altitudes in many different molecular bands will represent the first time that an extensive and precise dataset of densities and hopefully temperatures are obtained at those altitudes and local times on Mars. But there are additional capabilities in TGO for studying the upper atmosphere of Mars, and we review them briefly. Our simulations suggest that airglow emissions from the UV to the IR might be observed outside the terminator. If eventually confirmed from orbit, they would supply new information about atmospheric dynamics and variability. However, their optimal exploitation requires a special spacecraft pointing, currently not considered in the regular operations but feasible in our opinion. We discuss the synergy between the TGO instruments, specially the wide spectral range achieved by combining them. We also encourage coordinated operations with other Mars-observing missions capable of supplying simultaneous measurements of its upper atmosphere.
15. Investigations of the Mars Upper Atmosphere with ExoMars Trace Gas Orbiter
- Author
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López-Valverde, Miguel A., Gerard, Jean-Claude, González-Galindo, Francisco, Vandaele, Ann-Carine, Thomas, Ian, Korablev, Oleg, Ignatiev, Nikolai, Fedorova, Anna, Montmessin, Franck, Määttänen, Anni, Guilbon, Sabrina, Lefevre, Franck, Patel, Manish R., Jiménez-Monferrer, Sergio, García-Comas, Maya, Cardesin, Alejandro, Wilson, Colin F., Clancy, R. T., Kleinböhl, Armin, McCleese, Daniel J., Kass, David M., Schneider, Nick M., Chaffin, Michael S., López-Moreno, José Juan, Rodríguez, Julio, López-Valverde, Miguel A., Gerard, Jean-Claude, González-Galindo, Francisco, Vandaele, Ann-Carine, Thomas, Ian, Korablev, Oleg, Ignatiev, Nikolai, Fedorova, Anna, Montmessin, Franck, Määttänen, Anni, Guilbon, Sabrina, Lefevre, Franck, Patel, Manish R., Jiménez-Monferrer, Sergio, García-Comas, Maya, Cardesin, Alejandro, Wilson, Colin F., Clancy, R. T., Kleinböhl, Armin, McCleese, Daniel J., Kass, David M., Schneider, Nick M., Chaffin, Michael S., López-Moreno, José Juan, and Rodríguez, Julio
- Abstract
The Martian mesosphere and thermosphere, the region above about 60 km, is not the primary target of the ExoMars 2016 mission but its Trace Gas Orbiter (TGO) can explore it and address many interesting issues, either in-situ during the aerobraking period or remotely during the regular mission. In the aerobraking phase TGO peeks into thermospheric densities and temperatures, in a broad range of latitudes and during a long continuous period. TGO carries two instruments designed for the detection of trace species, NOMAD and ACS, which will use the solar occultation technique. Their regular sounding at the terminator up to very high altitudes in many different molecular bands will represent the first time that an extensive and precise dataset of densities and hopefully temperatures are obtained at those altitudes and local times on Mars. But there are additional capabilities in TGO for studying the upper atmosphere of Mars, and we review them briefly. Our simulations suggest that airglow emissions from the UV to the IR might be observed outside the terminator. If eventually confirmed from orbit, they would supply new information about atmospheric dynamics and variability. However, their optimal exploitation requires a special spacecraft pointing, currently not considered in the regular operations but feasible in our opinion. We discuss the synergy between the TGO instruments, specially the wide spectral range achieved by combining them. We also encourage coordinated operations with other Mars-observing missions capable of supplying simultaneous measurements of its upper atmosphere.
16. Mars Express science highlights and future plans.
- Author
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Titov, Dmitrij, Bibring, Jean-Pierre, Cardesin, Alejandro, Duxbury, Thomas, Forget, Francois, Giuranna, Marco, Gonzalez-Galindo, Francisco, Holmström, Mats, Jaumann, Ralf, Määttänen, Anni, Martin, Patrick, Montmessin, Franck, Orosei, Roberto, Pätzold, Martin, and Plaut, Jeffrey
- Published
- 2018
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