ESA Document - Emits - ESA

s
HMM
Assessment Study
Report: CDF-20(A)
February 2004
page 321 of 422
Sample types EVA Retrieval Method EVA Container
Surface samples
rocks Manual/by hnd Simple sealable bg
Typical size shape Tooling- hmmer
Stones Manual/By Hand Simple sealable bg
Typical size shape
Surface soil Manual/by hand Cylindrical container
with screw cap
Type of substrate Tooling- trowel
Sub-surface samples
(Core samples)
Tool head placed into
cylindrical container
with screw cap
Typical depth 1-2 m Mobile handheld boring tool
or station
Maintenance of core integrity Core sample retrieved with
drill head/bit (Ref MSR)
Tooling
Atmospheric samples Manual/by hand Cylindrical container
with screw cap
Table 4-27: Sampling methodology
Fr sample retrieval and EVA transport, the following tooling is required:
• Trowel
• Multi-purpose hammer/pick
• Core sampling machine
• Sample transpor
• Sealable bags
• Soil containers with screw cap- typical volume 10 cm 3
• Atmospheric containers with screw cap - typical volume 10 cm 3
• Core sample drill head container with screw cap - Drill Head diameter 40 typically.
An open point for consideration is how are samples to be catalogued during EVA an the
potential for different samples from different locations. Some non-complex method of
cataloguing is required. Bar-coding of sample containers along with reference for time and place
etc. is required.
Two Methods of ‘Treatment’ for the collected samples can be considered:
1. In situ (on Martian surface) detailed sample analysis:
a. On-site during EVA by astronaut
b. Sample returned to SHM for analysis
2. Sample returned to Earth for analysis
As regards in situ analysis, it is unlikely that the astronaut will have the equipment available to
do detailed analysis during EVA. It is likely that equipment such as a microscope and an IR
specrometer would be available to the astronaut to aid in the selection of sample material for
further analysis.