Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995jgcd...18..605k&link_type=abstract
J. Guid. Control Dyn., Vol. 18, No. 3, p. 605 - 610
Astronomy and Astrophysics
Astronomy
Imaging: Phobos, Imaging: Deimos, Cameras: Space Instrumentation
Scientific paper
The Institute of Space and Astronautical Science is currently planning to launch the PLANET-B spacecraft toward Mars, carrying an optical imaging instrument, Mars imaging camera, and close-up imaging of the Martian satellites Phobos and Deimos is planned. This paper analyses the use of optical images as a source in an autonomous, real-time onboard navigation scenario. The results obtained show that radio metric navigation using ephemerides of Martian satellites will not correctly orient the camera. This paper proposes a nonlinear observer as well as navigation schemes that provide orbital-properties in real time such as ballistic parameters and the phase angle in the B-plane (defined as the plane perpendicular to the relative velocity to the target.) Special attention is focused on how the camera angle is programmed in the case of spin-stabilized spacecraft like PLANET-B. Also provided is a new algebraically implemented tracking scheme that is independent of the B-plane properties.
Hashimoto Tsutomu
Kawaguchi Jun'ichiro
Nakatani Ichiro
Ninomiya Kazufumi
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