2.4.1 spase://CNES/NumericalData/CDPP-AMDA/FREJA/ESP/fja-sc-charg charging events 2023-04-26T14:47:21Z This dataset provides data of a total of 291 spacecraft surface charging events detected during the operation of the Freja satellite. The dataset provides peak charging level, light conditions and charging duration. The Freja mission objective was to study the polar (high latitude) auroral processes and was therefore equipped with a highly advanced plasma payload package, and the spacecraft itself was designed to be as electrically clean as possible. Such a payload package is, of course, also suitable for spacecraft charging studies. Numerous surface charging events did indeed occur with negative charging levels as large as -2000 Volts. For detailed analysis of the Freja charging events, see workpackage reports WP110, WP120 and WP130 (https://space.fmi.fi/spee/docs/), and take contact withe the Swedish Institute of Space Physics, Uppsala, before using any of the data presented here. The data interpretation may be heavily dependent on instrumental capabilities and measurement mode types. spase://CNES/Person/CDPP-AMDA/J.Wahlund ProjectScientist spase://SMWG/Repository/CDPP/AMDA Online Open CDPP/AMDA HAPI Server https://amda.irap.omp.eu/service/hapi fja-sc-charg Web Service to this product using the HAPI interface. CSV Thank you for acknowledging the use of AMDA in publications with wording like "Data analysis was performed with the AMDA science analysis system provided by the Centre de Données de la Physique des Plasmas (CDPP) supported by CNRS, CNES, Observatoire de Paris and Université Paul Sabatier, Toulouse". See the Rules of the road at https://amda.cdpp.eu/help/policy.html . Please acknowledge the Data Providers. spase://SMWG/Repository/CDPP/AMDA Online Open CDPP/AMDA Web application https://amda.cdpp.eu Access to Data via CDPP/AMDA Web application. CSV VOTable CDF PNG Thank you for acknowledging the use of AMDA in publications with wording like "Data analysis was performed with the AMDA science analysis system provided by the Centre de Données de la Physique des Plasmas (CDPP) supported by CNRS, CNES, Observatoire de Paris and Université Paul Sabatier, Toulouse". See the Rules of the road at https://amda.cdpp.eu/help/policy.html . Please acknowledge the Data Providers. ESA https://space.fmi.fi/spee/sc_charging_old/freja_ascii.dat spase://CNES/Instrument/CDPP-AMDA/FREJA/ESP EnergeticParticles 1992-11-03T09:33:39Z 1994-04-10T01:39:40Z PT60S Earth.Magnetosphere orbit nb fja_sc_orb Orbit number TimeSeries Positional q_peak fja_sc_q peak charging level V TimeSeries Other duration fja_sc_dur Event duration s TimeSeries Temporal sun conditions fja_sc_sun Sunlight conditions (eclpise=1, Sunlight = 0, Both = 2) TimeSeries Other density fja_sc_n Electron density cm-3 TimeSeries Electron NumberDensity e- distr. fun. fja_sc_df Electron spectra 1/(cm² s² str eV) Spectrogram Electron EnergyFlux angle fja_sc_ang Freja spin axis angle vs. magnetic field direction deg TimeSeries Positional