Observations and Modeling of GEO Sa tellites at Large Phase Angles Rita L
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Observations and Modeling of GEO Sa tellites at Large Phase Angles Rita L

Cognion ABSTRACT 1 INTRODUCTION Fig 1 Visual magnitudes of GEO satellites viewed from Maui and polynomial fit black line to the data 1 brPage 2br 2 BACKGROUND Table 1 Explicit forms for empiricallyderived GEO satellite albedo brPage 3br Fig 2 Lamber

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Observations and Modeling of GEO Sa tellites at Large Phase Angles Rita L




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Observations and Modeling of GEO Sa tellites at Large Phase Angles Rita L. Cognion ABSTRACT 1. INTRODUCTION Fig. 1. Visual magnitudes of GEO satellites viewed from Maui and polynomial fit (black line) to the data [1].
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2. BACKGROUND Table 1. Explicit forms for empirically-derived GEO satellite albedo.
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Fig. 2. Lambertian sphere mode l compared to the empirical model derived from data in Fig. 1. 3. MODEL CHARACTERISTICS
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4. MODEL PARAMETERS AN D PHASE FUNCTIONS Table 2. Model parameters Parameter Description Value
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5. MODEL RESULTS Fig. 3. Results of simple ph otometric model with earthshine
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Fig. 4. Individual component contribu tions to the satellite’s reflected flux 6. COMPARISON TO RECENT MEASUREMENTS
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Fig. 5. Measured R magnitudes for DIRECTV 12 compared to modeled visual magnitudes. 7. CONCLUSIONS 8. ACKNOWLEDGMENTS 9. REFERENCES
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