We, the ERG/HEP team, are pleased to announce that the new HEP Level-3 pitch-angle sorted flux data are now available from the ERG-SC website. The newly released data have the version number of v01_00. The data are generated from HEP Level-2 3-D flux
data by sorting them with pitch angle values based on MGF Level-2 8 sec data. In obtaining average fluxes for pitch angle bins, only electron fluxes for azimuthal channels of 1, 2, 3, 6, 7, 8, 12, and 13 and for spin sectors #1, #2, ..., #14 (excluding
spin sectors #0 and #15) were used in order to avoid effects of the imperfect flux normalization in Level-2 3-D flux data. Consequently, the derived pitch-angle spectra are equivalent to those that one can calculate using the part_products routine.
Flux values in the Level-3 data have been averaged for 8 satellite spins (~ 64 sec) to get smooth spectra over pitch angle.
The Level-3 data are going to be made publicly available with a 1-year latency.
For SPEDAS users, the latest version of erg_load_hep.pro bundled in the ERG-SC plug-in for SPEDAS can be used to load Level-3 data. Copied below are some sample commands.
IDL> erg_init ERG> timespan, '2019-08-06' ERG> erg_load_hep, level='l3', uname='****', pass='****' (please pass the ERG project team ID/password through uname and pass)
HEP Level-3 data archived in the CDF format are available online from the ERG-SC data repository at: https://ergsc.isee.nagoya-u.ac.jp/data/ergsc/satellite/erg/hep/l3/pa/
The latest update and information on the instrument and data can also be found in the wiki page at: https://ergsc.isee.nagoya-u.ac.jp/mw/index.php/ErgSat/Hep
The ERG project asks all data users to show which version of data were used for his/her studies. This information should be included in, for example, the acknowledgment section of scientific papers in which ERG (Arase) satellite data are used.
The project also asks you to read carefully and follow the rules of the road (RoR) when you use the data for your own research. The latest RoR for the HEP and MGF data are copied at the end of this announcement. As the RoR reads, please contact the HEP
and MGF teams (erg_hep_info [at] isee.nagoya-u.ac.jp, erg_mgf_info [at] isee.nagoya-u.ac.jp) before using the data for any publications and presentations.
T. Mitani (HEP PI), T. Takashima (HEP Co-I), A. Matsuoka (MGF PI) T. Hori (ERG-SC contact for HEP data) Y. Miyoshi (project scientist), I. Shinohara (project manager)