DYNAMO: a Mars upper atmosphere package for investigating solar wind interaction and escape processes, and mapping Martian fields
Eric Chassefière
(1)
,
A. Nagy
(2)
,
M. Mandea
(3)
,
F. Primdahl
(4)
,
H. Rème
(5)
,
J.-A. Sauvaud
(5)
,
R. Lin
(6)
,
S. Barabash
(7)
,
D. Mitchell
(6)
,
T. Zurbuchen
(2)
,
François Leblanc
(1)
,
Jean-Jacques Berthelier
(8)
,
H. Waite
(2)
,
D.T. Young
(9)
,
J. Clarke
(10)
,
Michel Parrot
(11)
,
Jean-Gabriel Trotignon
(11)
,
Jean-Loup Bertaux
(1)
,
Eric Quémerais
(1)
,
F. Barlier
(12)
,
K. Szegö
,
S. Szalaï
,
S. Bougher
(2)
,
F. Forget
(13)
,
J. Lilensten
(14)
,
J.-P. Barriot
(15)
,
Gérard Chanteur
(8)
,
J. Luhmann
(6)
,
G. Hulot
(3)
,
M. Purucker
(16)
,
D. Breuer
(17)
,
S. Smrekar
(18)
,
B. Jakosky
(19)
,
Michel Menvielle
(8)
,
S. Sasaki
(20)
,
M. Acuna
(16)
,
G. Keating
(21)
,
P. Touboul
(22)
,
J.-C. Gérard
(23)
,
P. Rochus
(23)
,
S. Orsini
(24)
,
G. Cerutti-Maori
(25)
,
Jacques Porteneuve
(1)
,
Mustapha Meftah
(1)
,
Christian Malique
(1)
1
SA -
Service d'aéronomie
2 AOSS - Department of Atmospheric, Oceanic, and Space Sciences [Ann Arbor]
3 IPGP - Institut de Physique du Globe de Paris
4 DSRI - Danish Space Research Institute
5 CESR - Centre d'étude spatiale des rayonnements
6 SSL - Space Sciences Laboratory [Berkeley]
7 IRF - Swedish Institute of Space Physics [Kiruna]
8 CETP - Centre d'étude des environnements terrestre et planétaires
9 SwRI - Southwest Research Institute [San Antonio]
10 BU - Boston University [Boston]
11 LPCE - Laboratoire de physique et chimie de l'environnement
12 OCA - Observatoire de la Côte d'Azur
13 LMD - Laboratoire de Météorologie Dynamique (UMR 8539)
14 LPG - Laboratoire de Planétologie de Grenoble
15 OMP - Observatoire Midi-Pyrénées
16 GSFC - NASA Goddard Space Flight Center
17 Institut für Planetologie [Münster]
18 JPL - Jet Propulsion Laboratory
19 LASP - Laboratory for Atmospheric and Space Physics [Boulder]
20 UTokyo - The University of Tokyo
21 GW - The George Washington University
22 ONERA - The French Aerospace Lab [Châtillon]
23 Institut d'Astrophysique et de Géophysique [Liège]
24 IFSI - Istituto di Fisica dello Spazio Interplanetario
25 IPSL - Institut Pierre-Simon-Laplace
2 AOSS - Department of Atmospheric, Oceanic, and Space Sciences [Ann Arbor]
3 IPGP - Institut de Physique du Globe de Paris
4 DSRI - Danish Space Research Institute
5 CESR - Centre d'étude spatiale des rayonnements
6 SSL - Space Sciences Laboratory [Berkeley]
7 IRF - Swedish Institute of Space Physics [Kiruna]
8 CETP - Centre d'étude des environnements terrestre et planétaires
9 SwRI - Southwest Research Institute [San Antonio]
10 BU - Boston University [Boston]
11 LPCE - Laboratoire de physique et chimie de l'environnement
12 OCA - Observatoire de la Côte d'Azur
13 LMD - Laboratoire de Météorologie Dynamique (UMR 8539)
14 LPG - Laboratoire de Planétologie de Grenoble
15 OMP - Observatoire Midi-Pyrénées
16 GSFC - NASA Goddard Space Flight Center
17 Institut für Planetologie [Münster]
18 JPL - Jet Propulsion Laboratory
19 LASP - Laboratory for Atmospheric and Space Physics [Boulder]
20 UTokyo - The University of Tokyo
21 GW - The George Washington University
22 ONERA - The French Aerospace Lab [Châtillon]
23 Institut d'Astrophysique et de Géophysique [Liège]
24 IFSI - Istituto di Fisica dello Spazio Interplanetario
25 IPSL - Institut Pierre-Simon-Laplace
D. Mitchell
- Function : Author
- PersonId : 759495
- ORCID : 0000-0003-1960-2119
François Leblanc
- Function : Author
- PersonId : 175354
- IdHAL : francois-leblanc69
- ORCID : 0000-0002-5548-3519
- IdRef : 223432296
Jean-Loup Bertaux
- Function : Author
- PersonId : 756443
- ORCID : 0000-0003-0333-229X
K. Szegö
- Function : Author
S. Szalaï
- Function : Author
F. Forget
- Function : Author
- PersonId : 742798
- IdHAL : francoisforget
- ORCID : 0000-0002-3262-4366
- IdRef : 074163922
D. Breuer
- Function : Author
- PersonId : 758150
- ORCID : 0000-0001-9019-5304
S. Smrekar
- Function : Author
- PersonId : 762920
- ORCID : 0000-0001-8775-075X
Abstract
DYNAMO is a small multi-instrument payload aimed at characterizing current atmospheric escape, which is still poorly constrained, and improving gravity and magnetic field representations, in order to better understand the magnetic, geologic and thermal history of Mars. The internal structure and evolution of Mars is thought to have influenced climate evolution. The collapse of the primitive magnetosphere early in Mars history could have enhanced atmospheric escape and favored transition to the present arid climate. These objectives are achieved by using a low periapsis orbit. DYNAMO has been proposed in response to the AO released in February 2002 for instruments to be flown as a complementary payload onboard the CNES Orbiter to Mars (MO-07), foreseen to be launched in 2007 in the framework of the French PREMIER Mars exploration program. MO-07 orbital phase 2b (with an elliptical orbit of periapsis 170 km), and in a lesser extent 2a, offers an unprecedented opportunity to investigate by in situ probing the chemical and dynamical properties of the deep ionosphere, thermosphere, and the interaction between the atmosphere and the solar wind, and therefore the present atmospheric escape rate. Ultraviolet remote sensing is an essential complement to characterize high, tenuous, layers of the atmosphere. One Martian year of operation, with about 5,000 low passes, should allow DYNAMO to map in great detail the residual magnetic field, together with the gravity field. Additional data on the internal structure will be obtained by mapping the electric conductivity, sinergistically with the NETLANDER magnetic data. Three options have been recommended by the International Science and Technical Review Board (ISTRB), who met on July 1st and 2nd, 2002. One of them is centered on DYNAMO. The final choice, which should be made before the end of 2002, will depend on available funding resources at CNES.