Autonomous imaging of phobos and deimos for the planet-b mission

Jun’ichiro Kawaguchi, Tatsuaki Hashimoto, Ichiro Nakatani, Keiken Ninomiya

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


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 Martian satellites Phobos and Deimos is planned. This paper presents analysis of using the optical images as a source in an autonomous, real-time onboard navigation scenario. The results obtained here 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.

Original languageEnglish
Pages (from-to)605-610
Number of pages6
JournalJournal of Guidance, Control, and Dynamics
Issue number3
Publication statusPublished - 1995 May
Externally publishedYes

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Aerospace Engineering
  • Space and Planetary Science
  • Electrical and Electronic Engineering
  • Applied Mathematics


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