Mission Geometry Orbit And Constellation Design And Management Pdf Best Hot!

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2. Fundamentals of Mission Geometry

2.1 Key Geometric Parameters

• Look Angle: Elevation and azimuth from a ground station to the satellite.
• Phase Angle: Angle between Sun, target, and sensor (critical for optical missions).
• Ground Swath Width: Function of altitude and minimum elevation angle.
• Access Interval: Continuous time when a satellite is above the horizon mask.

1. Altitude vs. Resolution: Lower is sharper but requires faster revisit.
2. Inclination vs. Coverage: Polar orbits see the whole Earth; equatorial orbits see only the tropics.
3. Eccentricity vs. Dwell Time: High eccentricity allows long dwell over apogee.