1997 Mankins NASA SPS Fresh Look

Figure 4-3 Sample Output Summary This approach was accomplished by an off-line simulation utilizing Microsoft Excel spreadsheet programs customized for this purpose, modeling the results via functional curve fits, and then embedding this orbit geometry database in the SSM spreadsheet. Further details of this methodology are summarized in this section. Figure 4-4 Candidate SSP Orbits Figure 4-4 presents a schematic illustration of the three main orbit types considered in this study. Characteristic parameters of these orbits are listed in Table 4-1. The first is a Low Earth Orbit (LEO),

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