12:00 PM - 12:15 PM
[PEM27-15] Imaging observation of spatial structure of sporadic E layer by Magnesium Ion Imager on the sounding rocket S-520-29
The sounding rocket S-310-38 was launched from the Uchinoura Space Center in Kagoshima, Japan, on 6 February 2008 for the same purpose and the two-dimensional horizontal structure of Mg+ in an Es layer was observed for the first time. While this result demonstrates the usefulness of Mg+ imaging for understanding the spatial structure of Es layers, the attitude of the sounding rocket, especially the zenith angle of the rocket axis was unusually tilted and the area of meaningful observation was limited.
In the sounding rocket S-520-29 experiment conducted on 17 August 2014, the MII was improved since the S-310-38 experiment and an attitude control system by gas jet was implemented. Unfortunately, the attitude control did not work as expected, but the Mg+ distribution was successfully observed and important information on the spatial structure of the Es layer was obtained.