Post by account_disabled on Mar 14, 2024 4:30:48 GMT
The conversion from the WATSON coordinate system to the rover frame QWbtW and the conversion to the Site frame QblltW at the time of WATSON acquisition are provided by the rover metadata. Specifically the orientations of WATSON and the rover are captured and reported when the WATSON image is taken. Knowing the quaternions the direction of a WATSON image in the Site system can be calculated as Converting the Cy direction of a WATSON image of a core after its return to Earth requires the identification of rotationally asymmetric features on the surface of a natural core including nodules or bulges crevices and other.
Marks that will be easily recognizable In fact sampling of cores with different rock lithologies showed that Buy Email List almost all cores were destroyed during drilling. Wellconsolidated rocks with weak bedding e.g. basalts basaltic sandstones and rhyolitic tuffs typically produced fragments with wellpreserved fracture planes. However softer and more layered structures eg mudstones hydrated sulfates usually produce fragments in the form of plates or sometimes even crushed pebbles and granules. Selected Core Selected Core For fragmented cores the overall orientation can be conveyed from the outer surface imaged by.
WATSON by rotating the fragments so that they fit together and lock into place like puzzle pieces. The first depth at which the pieces cannot be assembled in this manner into their original orientation sets the maximum depth to which the full orientation can be conveyed using surface images. This maximum depth is highly dependent on the lithology of the core images of QMDT test cores indicate that it ranges from to of the core length for hard rocks and to for soft and layered samples. Applications to Perseverance cores Estimation of drill oscillation Changes in drill orientation during drilling were also assessed.
Marks that will be easily recognizable In fact sampling of cores with different rock lithologies showed that Buy Email List almost all cores were destroyed during drilling. Wellconsolidated rocks with weak bedding e.g. basalts basaltic sandstones and rhyolitic tuffs typically produced fragments with wellpreserved fracture planes. However softer and more layered structures eg mudstones hydrated sulfates usually produce fragments in the form of plates or sometimes even crushed pebbles and granules. Selected Core Selected Core For fragmented cores the overall orientation can be conveyed from the outer surface imaged by.
WATSON by rotating the fragments so that they fit together and lock into place like puzzle pieces. The first depth at which the pieces cannot be assembled in this manner into their original orientation sets the maximum depth to which the full orientation can be conveyed using surface images. This maximum depth is highly dependent on the lithology of the core images of QMDT test cores indicate that it ranges from to of the core length for hard rocks and to for soft and layered samples. Applications to Perseverance cores Estimation of drill oscillation Changes in drill orientation during drilling were also assessed.