Table 2.

Summary of regolith movement v. initial slope angle

10°15°17.5°20°25°AOR (c. 30°)
JSC Mars-1oon.d.
Fine sandon.d.oo
Coarse sandn.d.n.d.n.d.n.d.n.d.
  • ‘✓’, Substantial slope movement observed.

  • ‘o’, No substantial slope movement observed.

  • n.d., No data for this initial slope angle.

  • Angles are initial target slope angles. Photogrammetrically measured values are presented in Table 3.

  • AOR, Static angle of repose.