from_j2000_to_ecllos

from_j2000_to_ecllos(v, q_j2000_sat, mode='limb')[source]

Succesive transformations of a vector v in J2000 frame to ECLAIRs frame with appropriate quaternion.

Parameters:
  • v (numpy array with shape (3)) – array of unit cartesian vector in J2000 frame
  • q_j2000_sat (numpy array with shape (4)) – quaternion in J2000 frame
  • mode (string) – Earth or limb. Default is limb
Returns:

array of unit cartesian vector in ECLAIRs frame
Return type:

numpy array with shape (3)