An Introduction to Space Instrumentation,
Edited by K. Oyama and C. Z. Cheng, pp. 21-24.
© TERRAPUB, 2013.
N. Iwagami1, Y. Koizumi-Kurihara2, and J. Kurihara3
1Department of Earth and Planetary Science, University of Tokyo, Japan
2Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Japan
3Graduate School of Science, Hokkaido University, Japan
The IAF (Imaging Attitude Finder) is an imager using a one-dimensional multi-anode photomultiplier, and determines the attitude of a spinning sounding rocket with a precision of +/- 0.6° by finding out stars. One of the applications of IAF, MII (Magnesium Ion Imager) is a UV version of the former optimized for measuring the Mg+ twilight airglow occurring at around 100 km, and images its horizontal structures by looking it from above.
Key words: Rocket attitude, star finding, magnesium ion, twilight airglow.