2.3.1 spase://CNES/NumericalData/CDPP-AMDA/Helios1/E1/helios1-e1-idist ion dist Helios 1 E1 ion distribution data 2018-10-12T10:48:29Z The I1a instrument measures count rates of positive ions as a function of E/q, and reports a distribution function as a function of Ep, which is the energy assuming all the particles are protons. * E/q range: 0.155 - 15.32 kV (32 channels) * Azimuth range: -54.5 - 32.7(16 channels) * Elevation range: -20° - 20°(9 channels) Please acknowledge Helios E1 team and David Stansby in any publication spase://CNES/Person/David.Stansby DataProducer Dataset Description https://www.davidstansby.com/2017/09/18/new-helios-plasma-dataset.html spase://SMWG/Repository/CNES/CDPP-AMDA Online Open AMDA at CDPP http://amda.cdpp.eu Text Helios Data Archive Helios corefit data product spase://CNES/Instrument/CDPP-AMDA/Helios1/E1 ThermalPlasma 1974-12-12T01:38:10Z 1984-08-15T23:33:14Z PT10S PT6774S Heliosphere ion counts : sum on elevation 2D helios1_e1_idist_n_sumel Ion counts over energy, azimut and summed over elevation keV/((cm^2-s-sr-keV)) Spectrogram ion counts : sum on azimut 2D helios1_e1_idist_n_sumaz Ion counts over energy, elevation and summed over azimut keV/((cm^2-s-sr-keV)) Spectrogram ion counts : sum on energy 2D helios1_e1_idist_n_sume Ion counts over elevation, azimut and summed over energy keV/((cm^2-s-sr-keV)) Spectrogram ion pdf helios1_e1_idist_p Ion pdf over energy, azimut and elevation keV/((cm^2-s-sr-keV)) Spectrogram ion vx helios1_e1_idist_velx Ion vx over energy, azimut and elevation km/h Spectrogram ion vy helios1_e1_idist_vely Ion vy over energy, azimut and elevation km/h Spectrogram ion vz helios1_e1_idist_velz Ion vz over energy, azimut and elevation km/h Spectrogram ion |v| helios1_e1_idist_vmag Ion |v| over energy, azimut and elevation km/h Spectrogram ion phi helios1_e1_idist_ph Ion phi over energy, azimut and elevation degrees Spectrogram ion theta helios1_e1_idist_th Ion theta over energy, azimut and elevation degrees Spectrogram ion energy helios1_e1_idist_ie Ion energy over energy, azimut and elevation eV Spectrogram