MMX to Martian moons, JAXA/CNES collaboration Options

[pandaneko]

Before looking at JAXA's Jupiter mission I thought Martian moons sample return mission may be of interest to some people. I will translate
ISAS dcument on this mission and here are the first two pages (no page number on this document and page numbers are mine).

The document is question can be found here.
http://www.isas.jaxa.jp/topics/files/MMX170412.pdf

and the first two pages are as follows.


Page 1

Martian Moons eXploration (MMX)

Outline of Martian moons sample return mission (JAXA/ISAS)

Collaboration agreenment and signing ceremony with French CNES on 10 April(Mon) 2017 at JAXA Tokyo office


Page 2

Sample return mission and its space science and exploration schedule

This sample return mission has been, within the current space science/exploration timetable, designated as leading to "Strategic medimum
scale project 1" and its launch is scheduled for fiscal 2024.

P

[bobik]

The English version of the above presentation.

[pandaneko]

P10

Success criteria (science) proposal (MDR1 25 August 2015)

(this is a 4 C x 6 R matrix)

(1st row from left to right represetns criteria)

Item/ minimum success/ full success/ extra success

(2nd row from left to right as follows)

C1: Clarify the origin of Martian moons (capture or collision) (middle objective 1.1)

C2: About characteristic regions of satellite surface obtain detailed terrain map and information on surface
materials and estimate their gravitational field, thereby narrowing down on the origin.

C3: Create satellite surface terrain and material composition maps and by referring to them obtain samples from
at least one of these aeas. By analysing returned samples identify materials characteristic of the satellites and
assign them to surface material distribution maps, thereby strongly narrowing down on the origin of the moons.

C4: Establish the origin of Martian moons by noting the presence of water within the satellites and restrictions
imposed by the internal density structure and analysing returned samples from at least two different points
with different geological properties and assign the results to terrain and composition maps.

(3rd row from left to right as follows)

C1:

(in the sace of capture)

By analysing the composition and movement of proto materials supplied to Earth type planetary region norrow
down on the initial conditions for Martian surface evolution

(in the case of huge collision)

Try and understand huge collion process within Earth type planetary region and resulting formation of satellites
and find out how these events influenced initial evolution stage of Mars (middle objectives 1.2a and 1.2b)

C2: void

C3:

(in the case of capture)

Clarify properties in terms of meterial science of the proto astronomical bodies formed in the region of snow line
and its vicinity. We still do not know how these spectrographically relate to meteorite samples

(in the case of huge collision)

Distinguish between materials from Mars and materials from colliding astronomical bodies and clarify relevant
properties.


C4:

(in the case of capture)

Narrow down on the frmation of proto materials in the initial external solar system and how materials moved into
Earth type planetary region

(in the caee of huge collision)

Narrow down on the physical conditions of collision event. At the same time find out chronological distribution of
returned grain samples and combine this information with crater density in order to narrow down on the timing
of satellite capture or the timing of huge collision.

(4th row from left to right as follows)

C1: Clarify Maritan moons evolutionary process in the Martian sphere of influence (middle objective 2.1)

C2: Obtain large area photos with high spatial resolution and with some interesting areas narrow down on
non uniformity and weathering and resulting changes of the Martian surface.

C3: Obtain information on regolith of satellites and analyse space weatherng and resulting changes of the returned
samples, thereby narrowing down on updating process of satellite surface.

C4: Consolidate information on satellite regolith, environment for molecules around the satellites and compare
the findings with surface geology of Earth type small planets, thereby clarifying the satellite surface geology
and how it evolved within Martian sphere of influence

(5th row from left to right)

C1: Narrow down on Martian surface enrironment and how it evolved (middle objective 2.2)

C2: void

C3: Find out, from returned samples, if there were Martian materials falling on satellites after their formation and
if there were find out the source of these Matian materials.

C4: If there are abunddant Martian materials on satellites, then find out their properties to narrow down on the
Martian surface evolution. Also, by finding out the main components ratio and main isotopes ratio estimate
the amount of Martian atmosphere lost ino space narrow down on the Martian atmosphereic history.

(6th row from left to right)

C1: Narrow down on the atmospheric circulation of Mars relating to climatich changes (middle objective 2.3)

C2: void

C3: void

C4: Observe, from very high altitude of equatorial orbit and with high temporal resolution, temporary changes
in the global distribution of dust storms, ice clouds and vapour, thereby narrowing down on Martian atmospheric
circulation.

(end of page 10, P)