The Radiation Detection Monitor (RDM) onboard Akebono has been observing electron fluxes in three energy ranges (0.3-0.95, 0.95-2.5, >2.5 MeV). RDM is not designed to be a scientific instrument so that its capability is very limited. The sensor view is perpendicular to the Sun-pointing spin axis, and the spin period is 8 s. The sensor has a wide view angle. Although basic time resolution for particle measurements is 0.5 s, 16 s averaged data have enough counts to be statistically meaningful. Isotropic flux distributions should be assumed, and no pitch angle information is available.
The observations are summarized in Takagi et al., 1993 and Nagai 2012.

The data from the >2.5 MeV electron channel are open to the public since noise levels become high in the 0.3-0.95 and 0.95-2.5 MeV electron channels.

Data Format

Data Analysis

Here, you can find a TDAS load procedure file for RDM data.
RDM data analysis becomes available on TDAS with this load procedure. TDAS (THEMIS Data Analysis Software suite) has been developed by THEMIS project. See TDAS web page for details.

If you have any questions or request for the data, please contact DARTS.

Request for using this data

In any publications, the use of the Akebono data should be acknowledged, for example,

“Akebono/RDM data were provided through DARTS at the Institute of Space and Astronautical Science, JAXA in Japan.”