IMA Ion Moments

• Density quality flag values :
  • 0.0 - 0.6 : Poor
  • 0.6 - 0.8 : Acceptable
  • 0.8 - 0.9 : Good
  • 0.9 - 1.0 : Excellent
  VEX IMA protons and heavy ions number density could be considered reliable only in the case when corresponding quality flag (moments_quality_factor) is greater than 0.6 and density values themselves are greater than 0.01 cm-3
  It is highly recommended to download quality flag along with IMA ion densities.
• scan_flag defines if there is scanning over elevation angles (scan_flag = 1) or not (scan_flag = 0)