and the capability of transferring subsurface samples from the ESA drill to the sample cache are both highly desirable, but with the latter capability having significantly higher priority (Desired). The E2E-iSAG identified several issues requiring further as soon as possible. These include questions of science objectives and strategies best addressed by MEPAG, program-level matters directed to both ESA and NASA, and science-engineering research and development requirements, also to be addressed by both NASA and ESA. In summary, the E2E-iSAG identified science objectives that would drive the scientific analyses conducted on the first samples returned from well-characterized environments on Mars. The group identified the number and types of samples, associated masses and volumes, in situ measurements needed for context, and sample containment requirements needed to meet all or a majority of the stated objectives. The group also identified a reference set of landing sites that could be used to scope the related engineering tasks for addressing successfully the MSR campaign scientific objectives. The E2E-iSAG anticipates that the results of this unprecedented campaign would fundamentally advance our understanding of Mars, planetary evolution and the possible origin and distribution of life in the Solar System. List of Acronyms Acronyms Translation iSAG International Science Analysis Group 2R-iSAG 2-Rover International Science Analysis Group, a 2010 MEPAG study team AGU American Geophysical Union ALD analytical laboratory drawer, a group of instruments within the ESA Pasteur payload APXS Spectrometer Ray
ESA European Agency GCR galactic cosmic rays Go-to Referred to landing sites: the site of interest is outside the landing ellipse GPR Ground-penetrating radar HDA hazard detection and avoidance HRC High-Resolution Channel (HRC) of the ExoMars PanCam iMARS International Mars Architecture for the Return of Samples, a 2008 committee of the International Mars Exploration Working Group IR Infrared LD-BH Life detection/Biohazard Assessment LMC Life Marker Chip, an instrument within the ESA Pasteur payload Mars-XRD Mars X-Ray Diffractometer, an instrument within the ESA Pasteur payload MATMOS Mars Atmospheric Trace Molecule Occultation Spectrometer, an instrument on the proposed 2016 EMTGO mission MAV Mars Ascent Vehicle
MAVEN Mars Atmosphere and Volatile Evolution Mission, a mission to Mars scheduled for launch in 2013 MAX-C Mars Astrobiology Explorer-Cacher, a mission concept proposed by (2009) MB Mossbauer spectrometer, an instrument on the 2003 MER mission MEPAG Mars Exploration Program Analysis Next Decade Mars Sample Return Science Analysis Group, a 2008 MEPAG study team MER Mars Exploration a 2003 mission to Mars MEX Mars Express, an ESA 2003 mission to Mars Mini-TES Miniature Thermal Emission Spectrometer, an instrument on the 2003 MER mission MGS Mars Global Surveyor, a 1996 mission to Mars MOMA Mars Organic Molecule Analyzer, an instrument within the ESA Pasteur payload MRO Mars Reconnaissance SAG
Orbiter, a 2005 mission to Mars MRR-SAG Rover Science Analysis Group, a 2009 MEPAG study team MRSH Mars Returned Sample Handling MSL Mars Science Laboratory, a 2011 mission to Mars MSR Mars Sample Return MSR-L MSR Lander, a mission element of the proposed MSR Campaign concept MSR-O MSR Orbiter, a mission element of the proposed MSR Campaign concept NAI NASA Astrobiology Institute NRC National Research Council OCM Organic Check Material, a component of the 2011 MSL mission OS orbiting sample PanCam panoramic camera system, an instrument within the ESA Pasteur payload PP Planetary Protection RAT Rock Abrasion Tool, a device on the 2003 MER mission RELAX Refrigerator Enhanced Laser Analyzer for Xenon