Post-launch Calibration of the Planet-B Extreme Ultraviolet Scanner
نویسندگان
چکیده
1. Introduction Planet-B, which will arrive at the Mars in early 2004, is the first Mars explorer of Japan. Extreme Ultraviolet scanner (XUV) onboard Planet-B was a newly developed telescope for measuring an amount of helium gas and ions, which emit resonantly scattered light, on Martian atmosphere and ionosphere. XUV observed moonlight at a distance of 80 Earth radii (R E) when Planet-B was in parking orbit around Earth. We study the validity of pre-launch laboratory calibration, such as sensor efficiency, line of sight (LOS), and field of view (FOV) of XUV, with analyzing observation data of the Moon.
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