Figure 4. Coordinates of the center of the two batteries ventilation holes (per battery pack). These coordinates are given with reference to the S/C coordinate system origin located at the center of the S/C separation plane (X, Y, Z) : A= 1042.425 , -857.5 , -145.75 B= 1042.425 , 857.5 , -145.75 D= -1042.425, -857.5, -145.75 C= -1042.425, 857.5, -145.75 Frequency (MHz) E_Field (dBmV/m) The susceptibility level is at equipment surface. To evaluate the effect of the launcher radiated field on the L/V onto S/C TC receivers, the launcher radiation level at S/C separation plane region must be attenuated by 33 dB to account for the presence of S/C structures and MLI and the location of the TC receivers inside the S/C. INMARSAT-4 radiated emissions (TM emitters OFF)
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Sources: Launch Services Agreement (Inmarsat Launch CO LTD), Launch Services Agreement (Inmarsat Launch CO LTD)