Telerobotics as programming

Crockett, Thomas M.; Shams, Khawaja; Morris, John R.

doi:10.1109/aero.2011.5747537

Cited by 3 publications

(1 citation statement)

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“…Diagnostic characteristics were tabulated for each ventifact, including (1) overall shape (facet, keel, and basal sill), (2) macrotexture (elongated pits, scallops, flutes, grooves, and rock tails), and (3) microtexture (lineations). Once found, rocks were located in the lower resolution Navcam data, such that the location, size (height and width), and orientation of most ventifacts could be computed using Navcam stereo mosaics in the Mars Science Laboratory Interface (MSLICE) software package available to the MSL Team [ Aghevli et al ., ; Crockett et al ., ]. Because of inherent resolution limitations, the orientation of facets and general trends of large textures were determined, with the average taken of three measurements for each rock.…”

Section: Methodsmentioning

confidence: 99%

The rock abrasion record at Gale Crater: Mars Science Laboratory results from Bradbury Landing to Rocknest

et al. 2014

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Ventifacts, rocks abraded by wind-borne particles, are found in Gale Crater, Mars. In the eastward drive from "Bradbury Landing" to "Rocknest," they account for about half of the float and outcrop seen by Curiosity's cameras. Many are faceted and exhibit abrasion textures found at a range of scales, from submillimeter lineations to centimeter-scale facets, scallops, flutes, and grooves. The drive path geometry in the first 100 sols of the mission emphasized the identification of abrasion facets and textures formed by westerly flow. This upwind direction is inconsistent with predictions based on models and the orientation of regional dunes, suggesting that these ventifact features formed from very rare high-speed winds. The absence of active sand and evidence for deflation in the area indicates that most of the ventifacts are fossil features experiencing little abrasion today.

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Section: Methodsmentioning

confidence: 99%