exclusion angle (EA)

Standard

ECSS-E-ST-60-20C Rev. 2

Definition

lowest aspect angle of a body at which quoted full performance is achieved

Notes

  • NOTE 1 The following particular exclusion angles can be considered: - The Earth exclusion angle (EEA), defined as the lowest aspect angle of fully illuminated Earth (including the Earth atmosphere) at which quoted full performance is achieved, as shown schematically in Figure 3-10. - The Sun Exclusion Angle (SEA), defined as the lowest Aspect Angle of the Sun at which quoted full performance is achieved, as shown schematically in Figure 3-10. - The Moon Exclusion Angle (MEA) is defined as the lowest Aspect Angle of the Full Moon at which quoted full performance is achieved, as shown schematically in Figure 3-10.
  • NOTE 2 The value of any EA depends on the distance to the object.
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