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Noel Hitchcock Hughes currently works at the Space Systems Company, Lockheed Martin Corporation. Noel does research in Aerospace Engineering. Their current project is 'Odyssey Mars Orbiter'.
While no literature survey can be exhaustive , all methods discovered of converting quaternions to/from Euler angles and Direction Cosine Matrices (DCM) share one characteristic: they define the required result in terms of algebraic expressions of the input elements. These formulations are difficult to debug during implementation, require a differe...
The Odyssey Mars Orbiter provided real time bent pipe data relay of data to Earth from the Mars Science Laboratory, Curiosity, during the Entry, Descent and Landing (EDL) phase of the mission. In this paper we will describe the motivation for having real time and non-real time relay communication from Curiosity during EDL and the requirements and o...
4 3 2 1 q q q q R = operator: rotation of vector by a quaternion vi = unit vector along the i th Euler rotation axis vi n = unit vector along the i n th Euler rotation axis V = a general 3 component vector; if used in quaternion multiplication, augmented with a fourth element equal to zero
Convey insights and observations I have gleaned from forty years work, mostly in the area of spacecraft guidance, navigation and control engineering. These include both technical and non-technical items with, perhaps, a bit of humor thrown in occasionally.
Odyssey provides data relay for surface vehicles, Curiosity and MER and thermal imaging of the surface. We are currently filling in the final gaps in the complete thermal imaging map of the entire Mars surface and preparing for the arrival of the European Schiaparelli EDM lander, the Entry, Descent and Landing Demonstrator Module (EDM) of the ExoMars project for which we will provide data relay.