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SP Crater and SP lava flow

Unreviewed draft

This page was built from a teammate-supplied list. The text is teammate-written, unreviewed. Sources pending.

Summary

not provided

Location

Country
USA (Arizona)
Coordinates
35.58, -111.63
Elevation (m)
2100
Year first used as an analog
1965

Terrain and geology

not provided

Climate

not provided

Parameters matched

not provided

Why it is an analog

Most boulder-rich accessible basalt flow in the US Southwest; heritage test site.

Key differences: where the analogy breaks down

Steep cinder cone (≈30° slopes) exceeds lunar landing slopes; vesicular, oxidised basalt; vegetation on older surfaces.

Experiments done

USGS drilled and tested the 'Explorer' geology vehicle on the extremely blocky SP flow (1965-67); Desert RATS habitat and rover traverses in the San Francisco Volcanic Field; NASA JETT Artemis EVA field tests in the volcanic field (2024).

Experiments proposed

Mobility testing over high-rock-abundance terrain (worst-case lunar boulder fields); lava-flow-margin science traverse; LiDAR/stereo hazard mapping; EVA suit abrasion tests on vesicular basalt.

How to adjust it

Grade a flat pad on the flow apron as a landing-zone mock-up; scatter simulant over aa to fill voids like lunar regolith.

Access

not provided

Hazards

not provided

Sources

Sources pending (no sources in CSV).

v1 score, percentile and overlap flag

A descriptive lookup of scores v1 already stored. It is not a test, and a high percentile here does not show that this is a good analog.

v1 used this site
Yes. This place matches the v1 site "sf volcanic field", about 28.4 km away.

Stored v1 scores near SP Crater and SP lava flow
Score viewResultPercentileScoreDistance to tile (km)Overlap flag
Connecting Ridge C1, BaseScored78.46.715.5Not in a flagged tile
Connecting Ridge C1, Landing and mobilityScored84.27.215.5Not in a flagged tile
Connecting Ridge C1, Power and nightScored78.44.915.5Not in a flagged tile
Shackleton rim, BaseScored90.236.01.8Not in a flagged tile
Shackleton rim, Landing and mobilityScored98.041.21.8In a flagged tile
Shackleton rim, Power and nightScored90.226.21.8Not in a flagged tile

Overlap flag: whether the tile used for the score is one v1 flagged as stable in its top group across the Monte Carlo runs.

What these scores can and cannot tell you
  • This is a lookup of scores v1 already stored. It is descriptive and is not a test of the method.
  • A site is matched to the best-scoring tile that passed the gates within the match radius. A different radius would give different numbers.
  • Tiles are large compared with most sites, so a score describes the surrounding area, not the site itself.
  • Scores exist only for tiles that passed the land-cover and data gates. A gated-out or unscored site has no score, which says nothing about how good an analog it is.
  • Percentile is the share of scored tiles in that view with a lower score.
  • The Moon score is effectively terrain only. Mars is a low-confidence secondary result.
  • v1 failed its negative controls, so a high percentile here does not show that a site is a good analog.
  • The ranking is not checked against independent data. Gravity, air, dust and radiation are not scored.
  • Sites are compared with views of their own body only.
  • Match radius: 20 km, the radius v1 used.