Fig 1.
A sample location from the Sampling Quadrangle Assemblages Research Experiment (SQuARE), Square 03 in the starboard Maintenance Work Area of the International Space Station.
An open crew berth is visible at right. The yellow dotted line indicates the boundaries of the sample area. Credit: NASA/ISSAP.
Fig 2.
A cutaway image of the International Space Station’s US Orbital Segment, showing the locations of Square 03 (at upper center, in yellow) and 05 (at lower right, in orange).
Credit: Tor Finseth, by permission, modified by Justin Walsh.
Fig 3.
(a) Count of artifacts in Square 03 over time. (b) Proportions of artifacts by function in Square 03. Credit: Rao Hamza Ali.
Table 1.
Proportions of items in various functional categories for Square 03.
Fig 4.
Square 05 on the aft wall of the Node 3 module of the International Space Station.
The yellow dotted line indicates the boundaries of the sample area. The ARED machine is at the far upper right, on the overhead wall. The TVIS treadmill is outside this image to the left, on the forward wall. The WHC is directly behind the photographer. Credit: NASA/ISSAP.
Fig 5.
(a) Count of artifacts and average count in Square 05 over time. (b) Proportions of artifacts by function in Square 05. Credit: Rao Hamza Ali.
Table 2.
Proportions of items in various functional categories for Square 05.
Fig 6.
Visualization of Brainerd-Robinson similarity, compared context-by-context by item function, for (a) Square 03 and (b) Square 05. The more alike a pair of contexts is, the higher the coefficient value, with a context compared against itself where a value of 200 equals perfect similarity. The resulting matrix of coefficients is visualized on a scale from blue to red where blue is lowest and red is highest similarity. The dark red diagonal line indicates complete similarity, where each context is compared to itself. Dark blue represents a complete difference. Credit: Shawn Graham.
Table 3.
Average item density (count per m2).