[FPSPACE] Unusually high motion during docking?
Mgr. CSc. Antonín Vítek
AVitek at seznam.cz
Sat Apr 1 05:37:18 EST 2006
< 2) The actual docking was spot on in terms of targetting (one of the smallest
< post-contact nudges to one side I've seen) - but in terms of rotation,
< after initial capture, the spacecraft rotated about 15 - 20 degrees about
< what I guess would be called its Z axis? (the axis of the docking probe)
The axes used in coordinate system of ISS and Soyuz are rather complicated:
The direction of the symmetry axis out of the capture cone of passive docking mechanism on FGB module is -Y (Russian segment coordinate system), or +Z (American segment coordinate system).
The direction of the probe of active docking mechanism on Soyuz spacecraft is +Y (crew members are sitting inside with heads heading in the direction of +X axis, +Z axis is in the plane of solar arrays, completing a right-handed coordinate system).
Mgr. Antonin Vitek, CSc.
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